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P1126 and P1133 mean that the car is running lean and has trimmed rich to it's limit. This could be a failed MAF or an intake air leak. Lots of info in these forums if you run a search on these codes. When I got them I disconnected the MAF and the car ran better. I replaced the MAF and it solved the problem. In some cases it is a rotted vacuum line, loose intake connectors or someone was tinkering with the plenum and failed to get things all buttoned down again.
Process of elimination first, then buy parts if still needed.
Try disconnecting the MAF and go drive the car. If it runs noticeably better replace the MAF. If it runs noticeably worse, start looking for an intake air leak.
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2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
Last edited by Topless; 05-18-2017 at 06:13 PM.
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