Recently purchased a 2002 boxster S and havent yet enjoyed it as the Check engine light came on 100miles after buying it
I have searched the forum to find out the meanings of the codes and problems that surround them.
The problem with the car currently is that it has cut out a few times when pulling up to a stop. It starts back up without trouble but has cut out several times in a row at one point. Also, the power seems very flat and you get what feels like waves of power on full throttle, especially around 5,000rpm. At one point, it felt as though I had taken the engine to the rev limiter as it stopped revings at 4,000rpm. It doesn't feel right driving at a constant speed either, it feels as though its constantly holding back like I am backing off the throttle every second or two.
I scanned the codes and came up with P1126 & P1133
So, I have found out that my engine is running lean on both sides of the engine. I have currently checked for vacuum leaks using the carb cleaner method (being careful around the alternator!). I have checked the oil cap and dipstick tubes which seem ok, can also remove them without a problem with engine running.
What is baffling me is that the symptoms are that of a MAF sensor. But the car went to a Porsche specialist less then 9 months ago for a new MAF sensor and throttle body clean. I have removed the MAF sensor and it is a genuine Bosch sensor and have cleaned it out with electrical cleaner with no effect.
Should I try running the car around with the MAF sensor disconnected?
Has anyone had an issue similar to this?
It has upset me somewhat and would be infinitly grateful of any directions to resolve this problem.
Thanks,
Gaz
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