How does the pedal work on a Jetta Golf TDI?
In the mk3 TDI the pedal sensor is a potentiometer. In the mk4 TDI there are 2 pedal sensors (g79 and g185 sensors which are potentiometers), if one fails you should get an error code, if both fail the ECU will limit engine RPM to 1200. This should be obvious when reading the accelerator pedal value through VCDS.
Where is the glow plug on a VW Jetta?
If the engine shuts off suddenly during normal driving and you don’t see the glow plug light go on during failed restarts then replace the black relay 109 with the newer gray relay 109 (1996-2003 cars only, it’s under the steering wheel in the relay panel). It sometimes cools and lets you restart.
Why is the solenoid on my Jetta not working?
If the vacuum lines are broken or the solenoid is bad, it won’t control pressure which causes a problem which the ECU sees. You can try removing the N75 and flushing it out with electronic cleaner. Once dry, try a squirt of WD40 inside to help the solenoid move freely.
How to find the coolant temperature sensor location?
1-Make sure it was stone cold (overnight at least). 2-Take cap off expansion tank just to be sure to release any pressure and put it back on again. 3-Take electrical lead off old sender and put it on new one before installing sender. If you drop it you won’t lose it down there. You are trying to do this quickly.
Where is the throttle position sensor on a VW Jetta?
Your Volkswagen Jetta uses a series of complex sensors to report what is going on to the ECU. The ECU then uses this information to adjust the timing, air fuel mixture, and more. When one of them goes wrong, it can lead to stalling for sure. Throttle Position Sensor – The throttle position sensor is typically located on the gas pedal.
What causes a Volkswagen Jetta to stall out?
Here’s more on Volkswagen Jetta bad fuel injector diagnosis. Not Enough Fuel – The fuel pump may not be able to provide the fuel pressure needed for the engine to run properly. When it asks for a lot of fuel, instead of taking off, it stalls out with the demand. This can be caused by the fuel pump or fuel filter.
What to do if your VW Jetta doesn’t start?
Check the air intake piping, fuel filter, fuel pickup in the fuel tank, and fuel shutoff solenoid at the injection pump (1996-2003 cars only, single black wire leading to solenoid). It’s not when you turn the key and the engine doesn’t even try to start or turn over. You have a low battery, ignition key, or starter problem.
Are there any transmission issues in the Volkswagen Jetta?
The Volkswagen transmission has been documented by consumers to have a few issues that prevent the car from being a joy to ride. The Volkswagen models that have been affected by these transmission problems and have been recalled by the manufacturer are the Jetta, Jetta Sportswagen, GTI and Eos.
Which is better VW Jetta 01J or 02j?
With the 02J five-speed manual being a much more reliable option than the four-speed 01M automatic offered in the ’99-’03 Jetta TDI’s, most enthusiasts row their own gears. However, as soon as the first nozzle upgrade is performed the OEM clutch can begin to slip.
Why does my VW Jetta Golf have low power?
The check engine light (CEL) or malfunction indicator light (MIL) on the instrument cluster doesn’t always go off. If you have always have low power without the sudden cut out feeling or the engine just won’t rev high then read 1000q: constant low power on TDI.