Do CEL code clear by themself?

[wawa]

Yes genuine MAF. AOS is also new 2 mouths ago. Everything is being tested on a Porsche PIWIS system. My Indy do so many Porsche that he lease the system from Porsche. So I'm fairly confident when he says MAF is good. Longue story short, MAF was reading stange (19 instead of 14 x unit). After testing every sensor, they found a faulty ground. Correct the ground and reading was perfect, still they left the brand new MAF even after confirming the old one was good, as a safety)


O2 sensor might be related to all the oïl burning after AOS failed, or simply they are old, or maybe wiring. He says too many option to simply change them, he need to test stuff before.

I guest I will have to do an other 300km trip to see him.

Thanks
Chris