Amazingly helpful! I have a 1990 wagoneer with the renix and so many people dont realize there are many different things from renix to h.o. so thank you and keep the videos coming!

Holy smokes, if you are having any shifting, idle or starting issues the TPS should be the first thing you look at. This video is a great help...so easy to follow. Thanks

Hi Have 90 comanche with sooo many issues..so many..all seem to b electric control for EVERY FREAKIN thing on this pig. Thanks for renix tutorial info.. LOVE our Comanche..over 300k with auto trans

Suggestion #1: Dome the can. The weight of water/mud on there may pull it off when driving. Suggestion #2: Fill as best as you can, the TPS(report) with a silicone to fill in the rest of the plug. Those should keep that sensor bone dry.

Thanks for this! Just did this today and now the Xj drives as expected.

this makes sense with my problem that I'm having you're the only one on KZread that I can find that actually made sense if this works thank you bro if not still thank you for your video to help others have a good day

Hi, I am just installing a bored TB (DIY to 58mm) and this video came in great. No other online resurce got's it covered so well. None. Thanks !

Cool to see the trans computer can throw codes. I"ve read that it could. Now it shows up in your video!

This will be useful for my bored throttle body on my Renix Comanche. Need to adjust the bad boy.

Great clip .Crystal clear Thank you for sharing

BTW, great video. Best one I've seen on the TPS.

Another VERY useful video. Thanks!

Well, I just bought a new fuel pump assembly, since the engine was starving and popping at low gas but over 3000rpms it felt like a serious turbo kicking in (not downshifting, gear was locked with my manual selector), but I'll use this guide to check the TPS too. Keep working on that nice computer, which I'd call the Nixer BTW :D

Bro... impressive. How much for the reader?

instead off a cap for the sensor, could ya use RTV? maybe?

would definitely be interested in one of your readers. my local snap on dealer sold me a blue point obd scan tool that read " all cars". well I got it home and I didn't have the renix connector. So far he says the company's stopped making them. I only bought it to use for my own vehicles and can't even use it

@NickInTimeFilms

8 жыл бұрын

Yeah, in small print is should say "All Vehicle 96 and Newer." You probably only got a generic OBD-II Reader, but even if it did as far back as OBD-I, the Renix even pre-dates that. It's coming along well, hoping to have a few Alpha test models ready by the end of the month if everything falls into place. It's a lot of work, but strangely enjoyable .

@chryswallace8892

8 жыл бұрын

+NickInTimeFilms I made sure I asked him if it would read pre obd 1 and he said oh yeah. I spent about 400 for the scanner and another 250 ish for all other connectors which was supposed to include the renix connector.

@NickInTimeFilms

8 жыл бұрын

And no Renix Adapter ehh? That blows. You can still buy the MT2500 style adapters on Ebay, JEEP-1 MT2500-49, but I don't know if they will mate with your scanner or not

@chryswallace8892

8 жыл бұрын

+NickInTimeFilms I will have to check it out

The MT2500 troubleshooting calls for tps to be at .60-.70.

Hmm pots, they can become noisey and cause havoc, i would attach an audio amp through a dc blocking capacitor to the wiper, the gnd is the earth. Listen for the crackle as you move the sensor lol. Im supprised they didnt use one pot and added a op-amp to invert the value for the transmission feed, it would allways track the same, odd manufacturers nick lol. Fold the edge of the can over so its a smoooooooooothe edge :-D

I badly want to know if this mitchell character ever got his swap running.

I'd buy your scan tool, no questions! Did you ever sell them?

@NickInTimeFilms

5 ай бұрын

Yep, check out the Renix Engine Monitor on my site, NickInTimeDesign.com Hoping to get stock back in the next few months.

i am in jamaica the parts for that engine is all most imposible to get and the tps connecters are not on the wire loom

the tps for the auto will work on a manual, and for whatever reason it's cheaper to buy one for an auto.

@NickInTimeFilms

8 жыл бұрын

Yup, The ECU side is that same for both vehicles. I'm thinking that since the automatics were more popular, a lot more of that version TPS were manufactured so they end up cheaper.

This note has nothing to do with the TPS, sorry for the intrusion. I have a 1989 Cherokee Pioneer 200,000 miles plus and still runs. It's a 4x4, but half has been disconnected so it only runs with the rear one. I have been doing the repairs on my own and thanks to your videos, so far so good. Now I have a bit of a problem and that is I can not figure out the correct connection of all the little tubes around the filter box. Would you mind doing a quick video regarding that issue?. Thanks again for the help.

@NickInTimeFilms

8 жыл бұрын

Ah, so someone messed with your vacuum lines to the airbox? That is actually one of the first videos I had to do to my Jeep. It's before I knew much of anything, but it may give you an idea, sorry for all the talking. kzread.info/dash/bejne/fIuZscSsXZiYgLw.html There are diagrams online that show all the connections. i.fixya.net/uploads/images/8c4f2b6.jpg

hey that's kinda weird how you used the volt meter on the automatic trans plug to do the measurement cause i saw another video from bleepin jeep and they measured the engine plug for a automatic trans and it still worked and your worked too ....

@NickInTimeFilms

8 жыл бұрын

Like previously stated, the engine will still run fine with the TPS off by a few percent. But the method I show here is what is described in the factory service manual. Some people aren't aware of the differences between auto and manual adjustment.

@andrewmacias4795

8 жыл бұрын

oh ok i think im going to go with your method because you used the factory service manual thanks man.

I have a 1994 XJ, are there any adjustments that I can make to the TPS for that year? I'm having the erratic shifting in my auto transmission (AW4) and, on a couple occasions I would be at a light and go to accelerate, but the Jeep wouldn't go anywhere, despite the RPM's going up. I changed the TPS twice and currently have a brand new one (Duralast from Autozone), but the erratic shifting is still there. Shifts from gear 1 to 2 very early, 2-3 seems normal, but then in gear 3 the RPM's go past 3500 and it won't go into 4th gear, until I let off the accelerator. I've done the TV cable adjustment several times and also adjusted the NSS. I am due for new tranny fluid/filter, but does anyone think that alone would be causing these shifting issues? This is my daily driver, so I'm hoping for some ideas on what else to look at and hoping my transmission isn't on it's way out. Thanks in advance!

I love you sir

I've always had some idle issues, even some stalling. Couldn't ever find the problem that fixed it completely. Replaced IAC, TPS, CPS, O2 sensor, and bored out TB. Haven't stalled in a while but it still idles low (about 400 rpm). Used to have a pretty rough idle too but that's gone now. It's been a while since I've tried adjusting the TPS again, but the last time I did it, I could have sworn I read the voltage from the 3 pin connector even though mines an auto. Just another reason that I need your custom scan tool

@NickInTimeFilms

8 жыл бұрын

These are just the factory recommended adjustment procedures. You can adjust with the 3 pin and get close enough.

open the bottom of the clip to get the prob in snap door

Quick question... Where did you get your gauge cluster? I have the original one in my 89.. its the same year and make as yours.

thanks for the info the swap i did was from a jeep to a mazda pickup and i cant get it to rev what wire takes current to and from the ecu to make it rev

@NickInTimeFilms

6 жыл бұрын

Uhhh, I'm gonna need a lot more info for that one, haha. So did you take an entire Jeep Renix ECU/wiring harness/engine and put it into a the pickup?

Hey I adjusted mine to the correct voltage but when I start it it revs like crazy for 10 seconds is the sensor bad

@NickInTimeFilms

6 ай бұрын

Did you pull the battery cables to reset the ECU? You can't skip this step or you'll have high idle issues.

@landonshenk0009

6 ай бұрын

@@NickInTimeFilms nah thanks man

Can I adjust with out the multimeter. Say like move it back or forth a little reset the computer and test drive it until I find a sweet spot or is the margin of error wide going that route??

@NickInTimeFilms

2 жыл бұрын

You're going to have a hell of a time trying to manually set it that way, but in the end as long as it's close you probably won't be able to tell the difference.

nick what do you think of a Droid Phone app and a cable adaptor for Renix use?

@NickInTimeFilms

8 жыл бұрын

That would be a really neat idea but it is way out of my league. You could fit everything into a little dongle that could sit under the hood on top of the connector. It would require an arduino with bluetooth ability and then a lot of coding to make a useable app. I don't have even the foggiest idea on how to write android apps so maybe someone else with a lot of time on their hands could figure that one out. haha

I have an '88. It starts normal-ish at about 1100. When it gets warm it's screaming at 2500-almost 3000, but only in neutral and park. I changed the coolant temp sensor, TPS, and exhaust O2 sensor. Throwing parts at it is getting expensive. Any ideas?

@NickInTimeFilms

6 жыл бұрын

Hmmm, that is peculiar. I'm not going to lie, the Renix idle speed is one of the few systems that still completely baffles me. It just seems so random at times. First thing that comes to mind is to check the NSS for engine load sensing. See if you can bump the starter when in reverse or drive. If you can then the NSS might need a good cleaning or adjustment. Beyond that, Intake Manifold leaks or large vacuum leaks can cause major high idle issues so check around for things like that. Maybe unplug the IAC next to the TPS and see if anything changes or doesn't change. Does it still Rev well? Any driveability issues beyond the high idle?

Question: My input/reference voltage is only 4.72. I did the math and got 3.9. Is that too low on the input because my XJ still idles really low and the Transmission shifts really early

@NickInTimeFilms

2 жыл бұрын

You may have to confirm both sides of the TPS still have a full voltage range. ECU side will control idle, TCU side will control shift points. Pick which one is more important. After it's calibrated, pull the battery cables to reset the ECU so it learns the new position.

I see this video is 4 years old have you got that scanner made

@NickInTimeFilms

3 жыл бұрын

Yep, look up Renix Engine Monitor, available on my website at nickintimedesign.com

Where do you get the six wire connectors

Did this and it’s still has a high idle of 2500 at start, but only sometimes. I wondering if the entire sensor is bad

@NickInTimeFilms

3 жыл бұрын

It easier to tell with a scan tool. I've found out that if the computer doesn't properly read the tps as closed, the IAC won't be closed which will keep the idle high

@forgemientka3820

3 жыл бұрын

NickInTimeFilms thank you for the reply! Ended up swapping the entire sensor them following your video to tune it and it worked great, thank you!!

i put the engine in the pickup the ecu and wires was put in as well but cut the wires from the fuse box it back fire each time i try to revthe engine

@NickInTimeFilms

6 жыл бұрын

Mmmm. this oughta be fun. Well the TPS wiring is labeled as such: ECU: Description - Connector C15: 5V - Connector A D3: Sensor Ground - Connector B C7: TPS Input - Connector C

@mitchellwatson9344

6 жыл бұрын

what should i do to cannect those to make it work i am tierd to try now so confused

@NickInTimeFilms

6 жыл бұрын

Well wait, if you swapped the whole engine harness then all the wiring should be fine right? Did you have to splice anything together? Simple check would just be to see if you have 5v and ground on the correct pins

Great Vid man! But have a question what if you went from an auto trans to a manual trans swap, like I did. But I still have the 4 square connector. would I use the Manual trans math or the Auto trans math?

@NickInTimeFilms

7 жыл бұрын

I'm guess you still have an auto ECU as well? I would go of the ECU side. The readings come out to within a percent or two between both methods and the ecu can compensate for it being a little out of whack anyway.

dude this is an entirely different jeep from the one you first did that video where your voice was all weird. killing me! i am having some serious issues and i installed the new tps on my 90' wag and its the 4.0 and something happened where it literally started idling higher and then at a light something happened with my transmission. (hoping it was just a hose) and fucking fluid went everywhere and i barely made it home as i watched my rpm gauge go from 1,000 to 2,500 whenever it wanted and i had to crawl home on my road thank god as trans fluid was just pouring out of my jeep. any suggestions? I'm worried but at least it still starts.

I have both connectors on my 87 Comanche renix 5 speed lol

Any updates on your scanner project? this video is awesome i am afjusting my tps as i type!

@NickInTimeFilms

7 жыл бұрын

Oh yeah, It's in the beta stage now. I've only got one left for sale. I need to make an updated video on it but here's a quick overview kzread.info/dash/bejne/dK6Gks-HZtuwe8o.htmlm44s

@420-V.T.L-Machinist

7 жыл бұрын

NickInTimeFilms forsure i will definately be ordering one for myself for my bday!! i adjusted the tps it was almost spot on. but my trans still shifts wierd and also i can hear a rattle in my tranny tunnel. i retorqued tc bolts but no luck.

You have got some good videos man. I was wondering if you have had any issues at all with your ELockers? I am thinking about putting them in my 1991 Ranger due to the fact that it has open diffs.

@DDFJ1230

8 жыл бұрын

Im looking harder at going with Detroit lockers and putting in a 8.8

@NickInTimeFilms

8 жыл бұрын

+FireFighter#47 The e lockers have been doing alright but I think part of my rear one has something loose in it. when the weather is cold it locks up sometimes. the front has been fine. Wouldn't recommend the 8.8 version, I've hear lots of bad previews because it is built differently and breaks easily

@DDFJ1230

8 жыл бұрын

Thats why I am leaning more towards a Eaton Detroit locker. Just less to worry about in my opinion

Curious if you have any insight for me. I have an 88 Comanche Chief 4.0L automatic. When I put it in drive it feels like it takes off in 3rd gear and never changes gears. I've been driving it by manually shifting it from 1 to 3 to D which works fine. Do you know what is causing it not to shift normally in drive?

@NickInTimeFilms

3 жыл бұрын

Sounds like the TCU is down. Check the fuse under the passenger dash

Have you made this by chance

Can you do a video for a grounding problem for fuel gauge. I keep getting a past full tank reading and I replaced the whole fuel pump unit. Please help!

@NickInTimeFilms

8 жыл бұрын

It looks like the fuel gauge is a simple resistance to ground circuit. One of the three wires going to the fuel pump will be the gauge wire. That runs through the float resistor and then through the fuel pump ground wire. So if your fuel pump works, then the ground should be at least partially ok. You could check continuity from the ground pin the a good ground and make sure the resistance is below an ohm or so. Besides that either your float is stuck or worn, or there is a bad connection somewhere between the gauge cluster and the fuel pump. If you are careful and find out which pin is the hot 12v pin, you can take a paperclip or something and jump the OTHER 2 wires as they should be fuel gauge and ground. That should make your gauge drop all the way to zero. If it doesn't then there is a bad connection in the harness.

@eddiekalicki5897

8 жыл бұрын

+NickInTimeFilms thanks man I'll check it out. I hate looking for a bug wire or a ground that's messed up. I cleaned the group of grounds next to the Pcm didn't work either. So I'm down to checking the fire wall ground strap and battery neg terminal body ground. The wires go up into the car and to the front so I'll have to check all them to. Could I splice a wire into the ground back at the connection before it goes into the tank?

@NickInTimeFilms

8 жыл бұрын

Don't really think it would work. The float is connected to the ground pin and gauge pin at the connector. either the float is bad, or the gauge is bad, or there isn't a good connection from the gauge, through the float, to ground

@eddiekalicki5897

8 жыл бұрын

i cleaned all grounds under the hood and had to add a motor ground cuz the strap was broke. now my starter seems to be acting up. not starting right away. well ill be investigating this issue and hope i find the problem

So my 89 waggy eats these like every 4 months. I've always adjusted using the flat pin connector. Trying to get a better understanding of setting the square plug. By adjusting the tps from either connector, wouldn't that throw each reading off since you can only adjust it at one point on the tb? This the only issue I haven't figured out on the renix

@NickInTimeFilms

3 жыл бұрын

Right, both sides should equal each other on a good sensor. Adjust the flat plug for idle or square plug for shift points. TPS is very sensitive to water so if you've got hood vents or something then try to cover it with something

@johnsonboy020496

3 жыл бұрын

@@NickInTimeFilms thank you I got it now I believe I just replaced mine gonna see how it runs. Do you have a ig?

@NickInTimeFilms

3 жыл бұрын

I do, same name. Nickintimefilms

Hey man, I'm having stumbling issues with my 88 2.5 Comanche with auto trans. At low throttle it cuts out and stumbles and will occasionally stall at idle. I tested at the 4 pin connector A-D and got a reading of 4.03v for reference, and from B-D I'm getting 4.62v. According to the math at 83%, I SHOULD be seeing 3.55v. Is my TPS faulty? Thanks.

@NickInTimeFilms

7 жыл бұрын

+Boston Brotherhood I'll have to see if there is a different tuning method for 2.5L autos, but this video might help you out a bit more: kzread.info/dash/bejne/kXWgxNWOfbGfnqQ.html

So do you have to plug your the flat three pin connector if you have a auto? I set the tps using the diagram and it runs fine. I haven’t driven it. I saw that yours was in your video. If I plug the flat pin connector in it idles up high in idle to 1200. Unplug it and use the square pin auto and it idles fine. I was getting a reading from the new tps at 4.67volts multipled that by .83 and it was 3.67 I left it there just using the four pin auto connection. My question is can I run it down the road just as is?

@NickInTimeFilms

6 жыл бұрын

Alright, so quick breakdown here. The 3 Pin Flat Plug is what the ECU uses to run the engine. The 4 Pin Square Plug is what the TCU uses to shift. They are physically different circuits in the TPS so it's possible for one side to go out while the other still works fine. The ECU side should be around 17% and the TCU should be around 83%. If the engine seems to work well enough for you then go for it, but the engine will have to try and guess how much throttle you are giving so it may not run all that great. Better to just get a new TPS if it's not working properly.

@dwightfondren309

6 жыл бұрын

NickInTimeFilms Yeh. Took it down the road and it runs fine. I understand that it should be hooked up. I did order another one . Gonna see what happens. I’ll keep you informed

Why not just fill that area on the tps with grease.

@NickInTimeFilms

4 жыл бұрын

Considering it already looks to be epoxy filled, I don't trust water anywhere near it. The more protected the better, and that can has been doing pretty damn good for what it's worth haha

I would like to print out you TPS Cheat Sheet. Yes, I did click on the link provided above. However, the TPS Cheat Sheet has blurry or fuzzy with host.store.share photobucket. No, pdf where you click on your link above to open up in a new web browser tab for printing or download to save.

@NickInTimeFilms

4 жыл бұрын

Sure thing, here's a pdf version. drive.google.com/open?id=15yui_fqMlyKYKRyYNLJfSvlOViU5oZRu

can anything stop the injecter from getting derect pulse to rev the inging?

@NickInTimeFilms

6 жыл бұрын

Yes, the ECU will only fire the Injectors if it gives the ok to start. Holding the throttle Wide Open will prevent Injector firing during startup, as will a Bad CPS since it doesn't know how fast the engine is spinning.

i am doing engine swap my tps wires are messed up can someone send me the colour codes for the six wires thanks

@NickInTimeFilms

6 жыл бұрын

There are 2 sets of wires, 3 for the Engine computer and 3 for the Transmission computer. ECU is the 3 pin flat plug: A = Light Blue B = Brown C = Yellow/Green _|--|_ (A)(B)(C) TCU is the 4 pin square plug: A = Red B = Gray C = X D = Orange _|--|_ [B][A] [C][D]

hey i am still in renix hell. cant get it to idle. new tps and now new iac, and the idle went even higher. i am torn between LS engine swap and setting this damn jeep on fire. any thoughts on where to look here?

@NickInTimeFilms

7 жыл бұрын

lol. What kind of idle? does it hunt really bad or is it just really high. Usually vacuum leaks are the first thing i look for when looking for idle issues.

@bradleycampbell5933

7 жыл бұрын

well i have an update on my awful idle issues.all of the nuts on the bottom of the intake were about 3 to 4 full turns loose. i think all i need to do now is set the TPS and clean up my wiring and make it look neat and clean. then try and pass our emissions tests here in Colorado. and for your commenters.....i tried carb cleaner/brake cleaner/throttle body cleaner at least 3 times on top and under the manifold. so if anyone gets a 4.0 that has high idle that wont respond to anything, change out the intake/exhaust manifold gaskets.

@NickInTimeFilms

7 жыл бұрын

Yeah, intake leaks like those are also real common on a fresh install job too. That'll give you a really high idle.

i started the ingine today and found out that the distrubutor is not sendind or receving any what would be that problem

@NickInTimeFilms

6 жыл бұрын

I'm assuming you mean you aren't getting any spark from the distributor? First thing I always check is the CPS, without a good signal the ECU won't send any spark or fuel.

@mitchellwatson9344

6 жыл бұрын

i was getting spark because the engine start and the wires that goes to the distributor was not connected what made that happened

@NickInTimeFilms

6 жыл бұрын

Oh, you mean the distributor sensor wasn't plugged in but it still starts. That's normal, on Renix the Distributor Sync Signal only tells the ECU if Cylinder 1 or Cylinder 6 is about to fire, which helps it start. When that is unplugged the ECU will just guess which could take longer to start

@mitchellwatson9344

6 жыл бұрын

woud the sync make the engine back fire if it is not pluged in or not receving no signal?

@NickInTimeFilms

6 жыл бұрын

Mmm, i think my buddy's ran a little better with it plugged in, but I'm not sure why.

My 90' wont shift back into first after a stop. Any ideas??

@NickInTimeFilms

8 жыл бұрын

Can it shift into overdrive?

@patmatt975

8 жыл бұрын

+NickInTimeFilms yep, It shifts fine, but occasionally it wont downshift. I pull it down manually then it works again.

morning what is the fastest speed can you get from a stock renix 4.0 engine could you tell please

@NickInTimeFilms

6 жыл бұрын

I'm not exactly sure what you're asking, like engine RPM Speed or fastest wheel speed the vehicle can go? The Rev limit of the 4.0L is 5,000 RPM. Fastest a stock Jeep can go is maybe 110 MPH if everything is perfect and you're going down hill haha.

@mitchellwatson9344

6 жыл бұрын

thanks for that ans can the engine take a terbo and how would it do

@NickInTimeFilms

6 жыл бұрын

I've seen turbo setups before, but never looked into it much. I'm pretty sure stock these are low boost applications, lot of people seem fine at 5-8 psi

@mitchellwatson9344

6 жыл бұрын

good nite is it posible for you to send the starter relay diagram and piturewhere all the curent wire are canect to there is some wires that is giving me some problem thanks

@NickInTimeFilms

6 жыл бұрын

goo.gl/images/HQaALh

I have the mt2500 snap on reader, what should the voltage be on that ?

@NickInTimeFilms

7 жыл бұрын

Lol, you're overthinking it. It already gives you the percentage so just set it to 17%

@chryswallace8892

7 жыл бұрын

NickInTimeFilms OK will do thank you

what pulses the injecters live or groungs through the ecu?

@NickInTimeFilms

6 жыл бұрын

Each Injector is supplied a 12V signal from the ECU and they are all grounded together.

what would cause the engine to back fire

@NickInTimeFilms

6 жыл бұрын

Could be lots of things, but generally it would be some sort of timing issue, whether mechanical or electrical. Is the MAP sensor hooked up properly? Did you do anything to the engine or did you just put it in as is. Did it run properly in the donor vehicle?

@mitchellwatson9344

6 жыл бұрын

the engine ran beautifu in the donor vehicle the color codes i think is where the problem is i am not that electrically inclined i have not put any gauges or splice any wires as yet don't know if any wires were cut and is not connected

hot glue or silicon huuhuu or a pop can

so would the cps cause that problem or it is too close to the teeth where it read the signal

@NickInTimeFilms

6 жыл бұрын

CPS is the number one cause of no starts on these old Jeeps and would prevent Spark and Fuel if no signal was detected. You can test them quickly before swapping it, multimeter set to ohm mode, CPS should be 125 Ω, +- 75 ohms. For a more reliable test, CPS should show 0.3V AC while cranking.

@mitchellwatson9344

6 жыл бұрын

I tested the CPS and the reading was 2.38. Is that okay or is that faulty?

@NickInTimeFilms

6 жыл бұрын

2.38v AC while cranking? That would be crazy high. That's with the cps unplugged right?

@mitchellwatson9344

6 жыл бұрын

Yes it was unplugged

@NickInTimeFilms

6 жыл бұрын

Hmm, what did the resistance come up as?

fill it with hot glue