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Old 10-12-2011, 12:44 AM   #1
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How to replace map sensor

My 2000 trans am suddenly started idling rough and threw a code p0108. I need to replace the map sensor that's located at back of intake manifold. Can anyone give me step by step procedure

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Old 10-12-2011, 01:57 PM   #2
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Step 1: stand on the passenger side and/or the front of the car, reach around to the back of the intake manifold with your left hand
Step 2: locate MAP sensor electrical harness clip. It goes left to right (wire on passenger side, sensor on drivers side).
Step 3: unclip MAP sensor harness by lifting the clip tab and pulling left
Step 4: locate the MAP sensor and the retainer clip holding it in (by feel). the sensor is pushed down in an adapter in the intake manifold
Step 5: push the clip towards the back of the car and pull up/down on the MAP sensor. try not to break anything (like the vacuum port right below it) in the process. It'll be a little difficult. If you can't remove it that way, you need to pull the intake manifold. There are write-ups on LS1howto

Installation is reverse of removal. Here's a pic to help visualize:

Oh yeah, and wear a longsleeve shirt and/or jacket if it fits. It's pretty easy to scratch up your arm on the cowl.

Last edited by ZexGX; 10-12-2011 at 02:05 PM.
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