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Old 12-15-2012, 04:24 PM   #1
Chuck W.
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Join Date: Sep 2008
Location: Agoura Hills (LA) So.Cal.
Posts: 1,574
Flat Spot During Hard Acceleration & Now Engine Code 1126

I believe I may know the problem and just some confirmation. I have a 2001 Boxster S six speed with 21,400 miles on it. Original owner, no engine mods and stock air filter.

During hard acceleration (WOT) I hit a flat spot momentarily while passing about 3300 RPMs. Nothing major, but you can feel it.

Several months ago on a hot day the check engine light came on. I got home and checked it and it was 1126. I did my due diligence and came up with several issues that could have caused it. I put some lube on the O-ring of the oil filler cap, cleared the code and have put about 500 miles on the car without issue. Until today.

Today the check engine light came on and after checking the code reader I found it was the same 1126 code. Based on this code and the flat spot at 3300 RPMs I am thinking that it is the MAF based on my reading of this and other Porsche forums.

Thoughts? TIA
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