What happens if the crank sensor fails on a VW Jetta?
If the crank sensor fails completely, the engine simply won’t run, as the DME has no reference point to calculate from. Often times, a failing CPS can manifest as an engine that cranks and cranks for an extended period before firing, more so when the engine is hot.
Can a crank and cam sensor be replaced?
I replaced both the cam and crank sensor and car still will not start but if I unplug the crank sensor it starts up and runs like crap. I can not figure out what to do next. My car has 91000 miles. My car has an automatic transmission. You should check to see if your vehicle has jumped timing.
Why does my car not start when I change the cam sensor?
Most of the time, this code comes up when there is a difference between the crank and cam sensors. The most common failure is the crankshaft position sensor. These fail much more frequently than the cam sensor and will cause a no start. It can also occur if the timing belt broke or jumped a tooth.
How does DME work on VW Jetta Mk4?
Based on the position of this plug on the flywheel (typically Top Dead Center (TDC) on cylinder number one), the DME can divide the signal by four and thus have the correct timing for each cylinder in the AVH 2.0 engine.
How to install a VW 5 cyl 2.5 engine cam position sensor?
Before installing a new cam sensor on your vehicle you should alway check to be sure the engine is properly timed. VW 2.5L 5 Cylinder engines use a timing chain so it is important to know this is in proper working order first. http://www.deutscheautoparts.com/View… Disclaimer: Please note all DIY are intended for basic information.
Why do you need a crank position sensor?
The crank position sensor’s job is to tell the the ECU in the car where the crankshaft is in it’s rotation. This is important because the vehicle needs this information for fuel injector and spark timing. Without this info the vehicle does not know what to do and this is why your vehicle may not start if you have a bad crank sensor.