could a bad catalytic converter give off a MAF code

Asked by peanut1970 Dec 18, 2015 at 05:49 PM about the 2001 Pontiac Grand Prix SE

Question type: Maintenance & Repair

went to get car smogged only thing that came up was bad catalytic converter
as i was driving home engine light came on put scan tool on code came up for
maf

F_O_R answered 8 years ago

Just a guess here but massive back pressure from a plugged up cat might set up abnormal air flow issues that could trigger a maf code. If it were me, I would replace the bad cat and see if the maf issue goes away.

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Rowefast answered 8 years ago

I agree, But get the code cleared after replacement of the cat.

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could a bad catalytic converter give off a MAF code

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