Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
Hi, I' m Chad. Welcome to JustAnswer. I' m reviewing your question now, and I will be post back with your reply ASAP
The P0171 , is an oxygen sensor bank 1 fault
BUT none of the possible causes is a mass air flow sensor itself , it is a n air leak between the maf sensor and the throttle body yes , but also list a few possibilities , i have sent you the troubleshoot tree for P0171 for your review .
THE P1637 is a fault that occurs when the cruise control has an issue an the ecm detects it or when the idle speed deteriorates , it will trigger this fault by the ecm ,
the ecm did not receive a message from abs/tccm module and igntion switch has been on for 5 secs and and the ecm can see this module , or the ecm itself is bad the module exist and he thinks it is not there, which will put car in reduce power mode , several issues but none are the mass air flow itself
i also included the troubleshooting description for the p1637
the p1000 is a readiness monitor system not completed, i m assuming will be the oxygen sensor not ready
I like see a snapshot of the fuel trim values for the car if you can hook up a scanner and take a picture of them and send it to me .
please let me know
Thank You ***** ( aka -Customer)ASE Certified Tech
1- Check the air boot from mass sensor to tb has no cracks or leaks in it, visually looks thru the ridges , with a flash light .
2- what is the fuel pressure
3- can we get a reading on the oxygen sensor bank1 sensor1 , is switching on the scanner from 0.1 v to 0.9 volts , or is it reporting correctly ?
4- can you get me a live data snapshot of the fuel trims at idle ( the long term fuel trims and the short term fuel trims at idle )
5- I like to know the P1000 not readiness test is for which system , the scanner should indicate that .