I HAD A TUNE UP DONE REPLACED THE MASS AIR FLOW ...

2002 Pontiac Grand Prix

Tiny

ybtmb0

January, 31, 2013 AT 8:57 PM

I had a tune up done, replaced the Mass Air Flow Sensor, After this work my car is getting 60 miles less per tank than just before the tune up. I replaced the Catalytic Converter because I was told this was the problem. I am still only getting about 250 per tank instead of the usual 300. I bought this car new and I have never gotten less than 300 per tank. What could be the problem.

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1 Answer

Tiny

ASEMaster6371

January, 31, 2013 AT 9:32 PM

Why did you replace it to begin with? What was the issue that made you do this?

New sensors take time to learn the system. They adapt to the vehicle. It could take some mileage for this to settle in

Roy

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