About 4 months ago started getting these codes, did the usual, cleaned the maf, searched for vac leaks, found none, Four weeks ago codes came back, friend who is a jaguar tech checked for vac leaks found nothing, he gave me a good used (to him) maf sensor, everything was fine until yesterday codes came up again, With the covid business just now not using the car much however have noticed gas milage has got really bad, used to get around 20 mpg around town, I am now getting 14mpg, Have ordered a new pcv as friend said they sometimes fail, Would be grateful if anyone has any tips as to what the problem might be,
I was going to get a walker maf, been told to stick with oem,,,, big cost diference,
thanks again,
Dave,
2007 jx8

tha

 

I have been running a Delphi MAF, model 10135 for the past 3years without issue. I still have my factory one. The Delphi was installed as a cheap experiment .