How to test map sensor?
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Captain
Joined: Jun 2011
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How to test map sensor?
How do I test it? I've searched many forums but I can't find a definite answer. And where do I hook up the voltimeter? If there's an explanation somewhere I would appreciate a link 
thanks
thanks
Administrator
Joined: Apr 2010
Posts: 87,394
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From: Clayton MI
Easiest way to test is:
Remove from truck, leave electrical hooked up.
Hook up a vacuum source, with a gauge......
Suck some vacuum, compare what the gauge says, to the the PCM thinks. If there is too much margin, replace it.
Remove from truck, leave electrical hooked up.
Hook up a vacuum source, with a gauge......
Suck some vacuum, compare what the gauge says, to the the PCM thinks. If there is too much margin, replace it.
