(G28) Crank Sensor Problem

[People's TDi]

I have a 2011 TDI Jetta Wagon with 178,000 miles on it and a Malone's Stage ii tune. It has been running great until I had a crank sensor G28 code come up. I replaced the flywheel and crank sensor about a month ago. About two weeks ago the code came back and the engine stalls, sputters while driving and knocks hard if I give it too much pedal. I have vcds and have pulled up three codes. 1.) G70 Mass airflow sensor, 2.) G28 Crank sensor/speed, and 3.) P2563 turbo boost control sensor. I have no idea other than it might be a wiring issue. I am at a total loss of what it could be.

 

[DivineChaos]

I have a 2011 TDI Jetta Wagon with 178,000 miles on it and a Malone's Stage ii tune. It has been running great until I had a crank sensor G28 code come up. I replaced the flywheel and crank sensor about a month ago. About two weeks ago the code came back and the engine stalls, sputters while driving and knocks hard if I give it too much pedal. I have vcds and have pulled up three codes. 1.) G70 Mass airflow sensor, 2.) G28 Crank sensor/speed, and 3.) P2563 turbo boost control sensor. I have no idea other than it might be a wiring issue. I am at a total loss of what it could be.

Well dizzy enough to replace the mass air flow sensor. Your crank sensor could either be a bad connection on the connector to it or a bad ground. Your turbo boost regulation could be the n75 valve or the actual vacuum actuator.

 

[Tdijarhead]

When you replaced the crank sensor before did you use a Bosch sensor?

 

[DivineChaos]

When you replaced the crank sensor before did you use a Bosch sensor?

Probably not. An eBay "Bosch" is my guess.

 

[People's TDi]

I am not sure of the brand of crank sensor. Is Bosch not a great brand for sensors? I had someone else replace it for me.