370z Fail Safe Mod - MAF error? - Help!

Jhill · 06-06-2016, 01:26 AM

Quote:

Originally Posted by Wilson2608

I agree with the wiring issue could be the problem. Your cars going into limp mode because of the MAF sensor code, not the Cats code (if you already didn't know that).\
Also, oiled K and N's have been known to destroy MAF sensor. Never had any issues with mine but it seems to be a pretty common problem.

Well he said he replaced both MAF's and still an issue so unless his bank two k&n is soaked in oil then it's doubtful that's the issue.

That said as a journeyman level tech for 12 years I have seen countless cars with MAF sensor issues from k&n filter (that don't cause MAF sensor issues, sarcasm).
That's why I went AEM dry filter for my stillen gen3. Indie labs also show better filtering so why deal with the hastle of outdated oiled filters for nothing.

suavebrah · 06-06-2016, 11:54 AM

Quote:

Originally Posted by Jhill

Well he said he replaced both MAF's and still an issue so unless his bank two k&n is soaked in oil then it's doubtful that's the issue.

That said as a journeyman level tech for 12 years I have seen countless cars with MAF sensor issues from k&n filter (that don't cause MAF sensor issues, sarcasm).
That's why I went AEM dry filter for my stillen gen3. Indie labs also show better filtering so why deal with the hastle of outdated oiled filters for nothing.

Yeah but I actually got rid of my filters before replacing both MAF sensors, so that shouldn't be the problem anymore. It may be a wiring issue, but is that something you can see from an inspection? Because the 2-3 times I brought the car in to Nissan for an inspection/service, they couldn't find any problems.

SouthArk370Z · 06-06-2016, 12:19 PM

Quote:

Originally Posted by suavebrah

... is that something you can see from an inspection? ...

No. You (or the dealer) should be able to read the MAF signals via OBD/CAN to check for wiring problems.

I suggest opening all the connectors between the MAFs and ECM (see FSM for harness layout) and cleaning everything with contact cleaner.

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