Car has 233,000 on it. Up until 1 month ago nothing wrong, now sometimes it won't start--cranks over but won't fire--also when driving it sometimes just dies--then it won't start. It has 4 codes PO722, PO727, PO441, PO335.

Any suggestions?

 

P0722 is a transmission pulse generator B, (speed sensor) can get only at a dealer of like $55.00 USD i don't know what the other codes are, hope i could help

Chris

 

Good going getting the codes. It tells the whole story.


P0722 - Output speed sensor no signal.

This is the a speed sensor on the transmission. It's the output one on the back near to the axles. It's either bad or connection to it is no good.

P0727 - Engine speed input no signal.

Not sure what this one it, but it's serious. It's a transmission sensor, but I don't know which one.

P0441 - Purge valve incorrect flow - It's the EVAP system, probably a hole in the purge valve hose. It won't impact engine performance.

P0335 - Crankshaft position sensor malfunction.

This is your problem. Replace this part. Possibly the same sensor as P0727.