LT1 MAF censor question
Thread Starter
Teching In
Joined: Jul 2009
Posts: 2
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LT1 MAF censor question I just recently swapped a new LT1 into my 1997 trans am because the old one developed a knock. When the swap was complete i drove the car for a few weeks and it developed a wierd idoling problem and would only run for about 30 seconds before sputtering and shutting off.
I cleaned the MAF censor and the air filter and tried it again with the same outcome. I then got curious and unplugged the MAF censor and the car runs beautifully. Any idea why this is happening?
I cleaned the MAF censor and the air filter and tried it again with the same outcome. I then got curious and unplugged the MAF censor and the car runs beautifully. Any idea why this is happening?
TECH Veteran
Joined: Dec 2008
Posts: 4,143
Likes: 61
From: Little Rock, AR
You need to do some testing or monitoring with a scanner. I might not be the MAF, it could be wiring to it or even something else. Unplugging a sensor is not a real good way to prove something wrong or troubleshoot. The computer will alter how it controls the engine when an important sensor is unplugged. That could lead you down the wrong path.
