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Old 01-16-2010, 04:21 PM   #4
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Join Date: Aug 2005
Location: Sanford NC
Posts: 2,337
My theory

"while pulling into my office parking garage at a steep incline" means that a shift of the engine is happening opening a crack in the air intake leading to the P1128.

I can't see the shift affecting the MAF or fuel pressure so, since the air intake leak is the second cause listed under that fault code, ....

Ever looked at or replaced your motor mounts?
mikefocke is offline   Reply With Quote