Hello Richard I have a 2010 golf 6 gti , it has little misfires and backfires on cold start , and when i accelerate on low rpms it has holes on acceleration from 1000 to 2500rpm , the engine on idle is not working like it really should has some small shakes in to it the car has no power loss , i changed sparplugs coils injectors fuel filter oil filter air filter and the problem is still there any advice will help a lot . Thank you for your videos

@CoolAirVw

Жыл бұрын

carbon build up on intake valves is common and can cause misfires on cold start. Also rear main seal and crank vent can cause lean issues making misfire.

@blini1oo

Жыл бұрын

@@CoolAirVw Thanks for responding when my mechanic changed the injectors he said that there is not too much of carbon build up i was thinking too that it could be the pcv valve but is there any way to test it like with the oil cap or something i tried it when engine was runing took the cap of and engine changed the way of runing the car doesnt give me any codes i really dont know what to change next , what would you recomend next thanks a lot .

@CoolAirVw

Жыл бұрын

@@blini1oo fuel trim diagnosis using scan tool like vcds or other scan tool.

Hello, I have a 2014 jetta with a 1.8 engine, they changed the timing chain, the car runs fine, only sometimes when I have been driving for about 20 minutes and I stop the car, the car loses the kit, the revs go down and up, I turn it off and on again and it's gone remove. The scanner throws additional codes p0300 301 302 303 304 p0011 and p0341 can you help me with some advice I don't know what to do

@CoolAirVw

Жыл бұрын

return to the shop and have them fix it.

@hectorsuarez9429

Жыл бұрын

Hello, good afternoon, happy holidays. Excuse me, I had written to you a few weeks ago because my car had a problem in the comment I made to you before, you know I disconnected the sensor that goes to the crankshaft and the car works excellent, only the check engine light shows on the dashboard, it will be that Is this sensor damaged?

you meant Hight pressure fuel pump?

@PetesWorkshop

Жыл бұрын

Nope it is the Vacuum pump.

@CoolAirVw

Жыл бұрын

The high pressure fuel pump bolts on to the vacuum pump. The vacuum pump was the problem in this video.