Power and acceleration problems

2 reports

Best answer (according to Liley68)

Liley68 from United States 9 years ago

In case someone has my same problem, this was the solution to my problem: acceleration body cleanse, coils harness replacement and engine relay change (N° 428), which is located behind the MAF sensor, right next to the fire wall. Hope it helps someone.

Andrea from other 5 years ago

I have slightly the same problem. At 200km/h the vehicle engine light start flashing then the EPC light appears from there the car looses power unless I stop nd switch it off then start again.

Comment

Desaccelerates Solved

Volkswagen Jetta 2003 200000 miles

Hi... when driving my car on the street, the engine suddenly desaccelerates and revolutions go up to 4.0 and the engine feels absolutely strained. When I then press the accelerator, it won't go over 50 mph. It's been a week since this problem appeared for the first time, what can it be?

etty from United States 9 years ago

4 reports

Best answer (according to etty)

Vannie from United States 9 years ago

Many things might be causing your problem: a lack of tuning, uncalibrated TPS or some damaged sensor. You should check the spark plugs and their wiring, as well as the engine itself, which might be needing a service.

Never again vw from United States a year ago

It was a throttle issue because when you put it down to drive it slips down the S without knowing. Sucks.

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Stalls when driving, EPC and oil indicators

Volkswagen Jetta 2002 168000 miles

I have a Jetta A 4 2002 and, when driving, it suddenly jerks, EPC and oil indicators turn on and it loses power until it stalls. I try to speed it up but it won't answer properly. Only after 20-30 minutes the engine will start again. The car has been tuned, the battery, oil pump and air sensor changed but it keeps doing the same thing. Can anyone help me? It really worries me when I'm driving and it suddenly stalls.

sophronia from United States 9 years ago

2 reports

patience from United States 9 years ago

Check the electronic acceleration body, that is what the indicators mean.

sophronia from United States 9 years ago

Thank you patience, I will tell this to the mechanic.

Andrea from other 5 years ago

Is the problem solved?

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Engine revs while in park

Volkswagen Jetta 2005 4 door 259000 miles

You turn the car over and it idles really high then low repeatedly

Ambers from United States 3 years ago

1 report

Avihaa from India 2 years ago

Ypically, engines idle at about 600-800 rpm. Older engines may go up to 1200 rpm or more while warming up. But if the engine is revving up while idling, even after it's sufficiently warmed up, you might have a problem. High idle speeds waste fuel, cause extra wear and tear on your engine, and can be unsafe as well.
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Jerking Problem

Volkswagen Jetta 2007 automatic 2.5 Wolfgang 125000 miles

Vehicle jerks when I slows down like someone rear ended me and jerks when I pull off. Didn't start doing this until I changed the transmission pan and filter.

G Rascoe from United States 3 years ago

6 reports

Engine dies after starting

Volkswagen Jetta 2009 Jett 19.9 TDi 120000 miles

Whilst driving my 2009 1.9 TDi Jetta suddenly lost power and then died. It starts but dies almost immediately. There is smoke coming from behind the turbo. There is no exhaust gasses coming out of the back at the exhaust. If I disconnect the airflow hose to the intercooler the engine runs.
If i disconnect the air to the intercooler the engine still runs.
Whilst doing either one of the above and i disconnect the air intake from the air filter their is exhaust smoke coming from out ( so it is blowing air instead of sucking.

Redheart from New Zealand 5 years ago