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Old 02-09-2008, 09:33 PM
AlphaCrow AlphaCrow is offline
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MAF sensor (2000 4d, 2wd blazer)

Hi... again

Last week my blazer started bogging down on acceleration and some of the cylinders would miss. Took it to the auto shop and had them read it with the computer (check engine light came on).

Said my O2 sensors were off and causing a random cyclinder misfire.

Mechanic advised me to try changing my air filter (which was pretty dirty) and clean the MAF with some special MAF spray.
Did so and they cleared the computer, works just fine now and sensors are reporting correctly and no more check engine codes.

I noticed that it seemed to chug only once (like one cyclinder missed) off a stop sign, but no codes and did not do it again.

Should I replace my MAF sensor? What about 0xygen sensors? The computer shows them running fine, but they're the originals on a 2000 blazer.

BTW, have done a full tune-up about a year ago and am running some fuel system cleaners mixed in the gas.

What do you think?
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