You have the exact same car as you have been great on giving me ideas of what to expect or check I saw your no start video and my plan was to go straight to the feul relays and go straight past the fuses I have high hopes that I'm having the same problem thanks for all your information

Was looking at the codes that came out. A lot will be saved from when you were diagnosing the miss. The fuel relay from the compression check the oxygen from when you forgot to plug it in. i would do a full reset of system run the car then run the test again should narrow your results. My 96 Camaro SS just gave a hard start yesterday and seems to be having a miss now which has lead me to watch your videos. Thank you for posting changing plugs and wires for starters tomorrow. But have a feeling its optispark time.Im hoping its just a wire like seen in your video.

I can say I definitely learned a lot from this video and I respect you for continuing to try to find out what's going on with your trans am and I truly know that you eventually we'll figure it out. my Firehawk right now is still overheating even after I had a new radiator water pump and cooler running thermostat installed but now I'm getting a hypertech power programmer that will allow me to reprogram my fans to come on at 210° instead of 235° so hopefully my Firehawk won't overheat anymore. Thank you for always doing these videos and keep them up! 😎👍

@jimmypage4162

2 жыл бұрын

Follow the coolant bleed procedure to a T on your hawk. Any LT1 car there’s 2 bleed ports do your research and follow directions to a t I bet there’s an air pocket somehweee

@LTJohn

2 жыл бұрын

@@jimmypage4162 overheating issue was fixed over a year ago. My hypertech power programmer did the trick. 😎🔥🦅

@erniesdeck7550

2 жыл бұрын

Hey I know this is an old comment but I have a 95 trans am and I have a similar problem with my fans coming on at 2:35 my issue is I can't find a hypertech programmer anywhere. Can I ask you where you got yours? Any help getting one would be highly appreciated.

@anthonyraue4170

Жыл бұрын

I wired up my electric waterpump and cooling fans to manual switches. I quit trusting the relays, have to keep eye on temp gauge and volt meter. They light up different colors so I can tell they are on at a glance.

And here it is, what I needed

Happy New Year everyone, update on my 94 FireHawk. I would like to thank Bif . . .I learned soo much from his awesome vids, newly acquired Firehawk and got a "SES", I have Mac so I ended up purchasing a "OTC-3211 Scan tool" by BOSCH to find out whats going on. I was nervous and waited a couple days to try it out. Well I got only 1 DTC and it was : 29 = Output Driver (ODM) Fault.EAS Circuit which translates to the "Secondary Air Pump". I was able to rectify this for now until I actually replace the unit.. .its only "on" at start up for emissions. . .it pumps air into exhaust manifold to lean out mixture to heat up Cat(s) while in "open loop" then kicks off. It doesn't really effect drivability from what I read. I read on various forums to check fuse, it was blown which triggers the "SES" light and to kick on both fans on hi. I unplugged the sensor going to the pump followed by replacing fuse with new fuse "20 amp" and then clear the code using the scan tool. It worked like a charm.

@FearlessMods

3 жыл бұрын

Thanks for watching and glad to hear of your success! Hope you found your problem!

I bought an actron elite auto scanner cp9185 it reads obd1 and 2 but for 1 you do have to have the cigarette lighter plug hooked up but theirs a port built into scanner. I went through a lot of bs before I figured that out finally for my 94 z28. It’s a pretty good scanner.

@samuelperezbuzon1

8 ай бұрын

Hello, I have a 1994 Trans Am with OBD-1. What scanner should I buy?

Extremely helpful thank you

I have a BlueDriver OBD2 scanner and I love it but I'm about to buy an early LT1 Trans Am so I got the adapter cable but now I don't know if it will work because the reader isn't self powered. Damn

Good video

I've messaged before. I have a 25th anniversary T/A also. I also have the same reader, and the same codes. My ecm has a custom tune by Ron Zimmer. My situation now is the reader doesn't communicate for some reason. And the antitheft system is keeping it from running for any length of time

@FearlessMods

Жыл бұрын

@anthonyraue4170 I see your comment on the PCM episode. Not sure which of these readers you're saying you have, but since I never had much luck with them, I don't have much to offer. However, if the key chip is causing you problems, the first thing I would do is to try to bypass that! I've not needed to do that, but this video seemed to explain it pretty well when I was considering it... kzread.info/dash/bejne/ZYSfqraxdLTWm6g.html

@teddybowman215

6 ай бұрын

Replace the cigarette lighter fuse if it's not working

Anyone have any suggestions on software for the obd1 usb cable?

Biff: I just bought a 1994 Pontiac Firehawk and the "SES" comes on after it warms up. Prior to this when I drove it home. . .app 30 minutes. . ran ok ( no SES ) car had been sitting and probably had old/bad gas, I ran that out completely until it wouldn't start ! The Firehawk was suffering from hesitation/stumbling/popping and low RPM miss. it did not do this when cold however !!! Before I put new fresh Mobil 93 in it I found a sensor unplugged ( I believe its was for the air pump ) I plugged it back in and then started it. Runs 100X better now and very little hesitation now. . .very responsive. Now I get a "SES" and when I hear the 2 fans kick on thats when the SES comes on and stays on. If I turn it off for a second and restart it no SES light at first but app 1:30 seconds later the SES comes on and stays on. So I want to find out what code/codes are and finding out after watching your video that on my year "1994" its not as easy I thought. Not sure what to do?

@FearlessMods

3 жыл бұрын

First of all...good luck! Second, it's easy enough to grab a scanner like one I use in this video, but it comes at a cost. I don't use PC, but rather Apple computers, so the options for buying the ALDL cable and downloading the free software (eehack or scan9495) don't work for me. However, you may want to give them a try. Good feedback on them from BLK Bandit and TinHatRanch in the comments of my latest video...

@ADR.Hi-Gain

3 жыл бұрын

Awesome, thanks Biff. I live in UpState, NY so I have all winter to learn/watch vids like yours and to get some goodies for "HULK".

These trans am have a loose cigarette lighter port connector also, worth checking.

I bought that same reader, and it doesn’t work for me when I enter “P” them “f”. Car is a 1994 Firebird Formula Firehawk. But I do get code 41 when I enter “J” instead of P and F. I saw to do that on Firebird Nation.

@alexkerr2343

10 ай бұрын

Thanks so much, my 1994 formula 6 speed was doing the same thing. You just saved the day. I was getting quite frustrated. I have the innova 3170rs.

What if you have an OBD1 computer with the OBD2 port? What scanner can read that?

@FearlessMods

3 жыл бұрын

The only one I have found that could do it was Snap-On. I tried to emulate that adapter in this video, but it didn’t work for me so I bought the OBD2 scanner.

I have a 94 z28 and i wanna know which specific obd2 scanner should i use for it

@FearlessMods

5 ай бұрын

The Innova 3140g that I used at the end of the video works but isn’t cheap. An ALDL cable on Amazon is fairly cheap and the Scan 9495 software is free if you have a PC. That may be a good (and cheaper) starting point.

Also the flashing light trick via jumpering obd port pins only works on 1993 cars.

@Braapvideos

3 жыл бұрын

Doesn`t work on my 1993 v6.

@pdennis93

3 жыл бұрын

@@Braapvideos might only work on 1993 LT1 cars.

I have the same scanner from autozone but the red gm connector connects to what??.. does not fit to obd2 head.. on my firebird..

@texasbass2109

4 жыл бұрын

And I have a 95 firebird with obd1 software and obd2 head..

@FearlessMods

4 жыл бұрын

Can you just use the OBD 2 cable that also comes with the scanner and go through the setup menus to pick your ‘95 model?

@texasbass2109

4 жыл бұрын

@@FearlessMods wont work. Tried that all night yesterday.. will only go up to 96.. and when I switch to the red gm obd1 connector. Will pop up on scanner for 95 but will not fit obd2 style connector.. which is something I dont understand..

@FearlessMods

4 жыл бұрын

TexasBass210 You may have to do another GM adapter on top of the red adapter. I’m just not sure if they make one that is a male OBD 2 to a female OBD 1. The one I was working with in the video was the other way around.

@texasbass2109

4 жыл бұрын

@@FearlessMods true man. Well I appreciate you responding..

Hello, I am Spanish, I have a 1994 Trans Am with OBD-1, what brand and model of scanner should I buy to read the fault codes? I hope you can help me, thank you

@FearlessMods

8 ай бұрын

The Innova 3140g that I used at the end of the video works but isn’t cheap. An ALDL cable on Amazon is fairly cheap and the Scan 9495 software is free if you have a PC. That may be a good (and cheaper) starting point.

@samuelperezbuzon1

8 ай бұрын

Thank you very much, I will look at the price of the innova 3140g and if it is expensive for me, then I will install the Scan 9495 on my computer

@samuelperezbuzon1

8 ай бұрын

@@FearlessMods Good afternoon, I already plugged in the 9140g scanner and it gave 9 errors. In the menu I selected, 1994, VIN P eighth position and VIN F fourth position, No truck and to finish other transmission (not manual). My problem is that if I search on the internet for codes 42,43,44,45,51,52,53,54,55, some pages say different meanings or others say that codes 52 and 54 do not appear. What I think is that the scanner reads incorrectly in my car model although I selected the parameters correctly as I wrote above. Another thing I think is that I don't have the correct list of codes, so if the reading is correct, there must be a list with codes 52 and 54 enabled. What could it be? thank you

@FearlessMods

8 ай бұрын

@@samuelperezbuzon1 it’s been a while since i plugged in, but I believe some of those 40s and 50s were codes that I never could clear. Frustrating early technology OBD!!

@FearlessMods

7 ай бұрын

I found an old note I had taken where I was showing all of those codes except 52. That's when I was investigating Open vs. Closed Loop operation and issues. For Open loop, I was considering TP sensor, engine coolant and MAP sensors. For Closed loop, I was considering O2 sensor voltage. Mine ended up stumping me for many more months until I found my Cat was plugged up, but those may be something for you to consider. Unfortunately, there is no smoking gun.

I have a 94 Z28 with the same exact codes!!! Totally baffled. Did you ever figure it out that caused all those contradictory codes? I'm not a tech, just a shade tree mechanic, but I would think the damn car shouldn't even run with all those codes.

@FearlessMods

Жыл бұрын

If you keep watching the series, you can see that I chase those codes around for quite some time. I must’ve done something right because once I cleared the catalytic, the thing runs perfectly. Still has the codes… None of the PCM clearing techniques I found have worked.

@drchevyphdeez7253

Жыл бұрын

@@FearlessMods appreciate the feedback, thank you.

Does the miss happen when the car gets to temp?

@FearlessMods

3 жыл бұрын

Usually it's ONLY when its up to temp. Runs great when cold.

@Touge_camaro

3 жыл бұрын

@@FearlessMods then it’s the ignition control module. I had the same problem on my ‘94 z28 and I replaced everything in the ignition system but the icm, after I replaced it car ran great and no missfire.

@FearlessMods

3 жыл бұрын

@@Touge_camaro I replaced it and it does better, but still not 100%. I'm way behind on digging into it because I'm in the middle of another move. Soon though!

@Touge_camaro

3 жыл бұрын

@@FearlessMods Hmm it might be fuel related then

@Touge_camaro

3 жыл бұрын

@@FearlessMods does it missfire at idle or while cruising?

I checked in to see if u solved the problem.. Try Scan9495 program.. If car is running lean at startup.. Vaccum leak or bad MAF sensor.. Once in closed loop, pcm responses to O2 sensor reading.. If O2 readings were lean at startup.. Fuel trims will increase, possibly causing a misfire after closed loop(when car is warm) MAF sensor should read around 6 to 9 Gms/sec.. Any less, suspect dirty/bad MAF.. Any more = bad MAF Tough vaccum leaks to find.. Brake booster, pcv valve, intake gaskets & exhaust leak b4 O2 sensors.. Good luck.. Reading the fuel trims in closed loop & O2 sensors at open loop helped diagnosis my Z

We got the same car man 25th trans am

@reptiliangenetics357

3 жыл бұрын

Me too lol

@Cameron26

3 жыл бұрын

Same here

The male side goes inside the female side. You said it opposite in the video. Just like male and female parts.. Male connector will fit inside a female connector.

@FearlessMods

2 жыл бұрын

🤣

The 95 is even more odd. It uses a 16 pin obd2 shaped connector but its pinouts are different than a standard 16 pin obd2. It's called a 16 pin aldl sometimes referred to as obd 1.5. I use free LT1 scanning software called scan9495 with my laptop and a 16 pin aldl cable for my 95 trans am. I also have aldldroid for my galaxy s8+ and use the same usb to 16 pin aldl cable along with a female USB to male USB-C adapter and can scan codes and run datalogging right from my phone. You can do the same thing with a 12 pin obd1 to usb with a 94. This is the 12 pin aldl cable you need to hook a laptop to a 94. www.ebay.com/itm/362605778022 This is the 16 pin aldl to USB cable i bought for my 95 about 7 years ago that I still use. www.ebay.com/itm/123835027289

@punkinsgarageandpaint8299

4 жыл бұрын

I h Just got a 95 Trans Am yesterday. It has sit for 12 years and the rats chewed the wiring under the hood. Do you know where I can purchase new wiring?

@pdennis93

4 жыл бұрын

@@punkinsgarageandpaint8299 good question. Ebay maybe? Not sure where you'd find a new harness.

@whosbetterthanme

4 жыл бұрын

BLK is spot on.. I've had my 95 Z28 6 speed for over a decade.. Scan9495 is a life saver.. Years of frustrations solved with that program alone.. But, its not an end all.. 94-95 f body cars are still tough to work on & tough to diagnose.. Being an expert on these cars is a prerequisite to owing them, IMO

@joelsmith8979

3 жыл бұрын

The '94/'95 Corvettes came with the OBD2 connector also...my '94 S10, 4.3l V6 with manual transmission, has the 16 pin OBD2 connector also.

@bendergod5747

2 жыл бұрын

Thank you for all this information, am 19 just bought a 95 formula with 95k miles

scan9495 gary doug they said it works