986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - 1130 CEL

impboy · 03-26-2012, 07:38 AM

Here's an update for those of you searching for a solution to your 1130 issues.

I installed a new MAF (from Amazon.com for around $150) and my car hasn't tripped the 1130 code for about a month now. Here's some history that may help you decide what to do. About 2 years ago, I got the first 1130 CEL code. I cleaned the mass air flow sensor, put it back in and it ran fine for about 7 or 8 months. The code tripped again and I repeated the same procedure. This whole process started happening more and more frequently until it started happening about every 5 to 7 days. The car was running rough at idle and my overall gas mileage was slowly getting worse.

Along the way I changed all the spark plugs and the spark plug tubes. I checked the vacuum of the gas cap with the car running to check for possible oil/air separator issues. The cap came off easily and the amount of sucking noise was normal. The issues with the check engine light coming on more frequently should have tipped me off that it was the MAF all along. I'm surprised I got two more years out of the MAF by just cleaning it. BTW, this car has just over 80k miles on it.

IMHO...
If you can clean the MAF and go for many months without the CEL coming on, go for it.
If you easily take off the oil cap, don't start trying to replace your oil/air separator yet.
If the CEL is coming on regularly after you clear it, buy a new MAF. I got a brand new one from Bosch through Amazon for way cheaper than I expected. I paid $166 but I just checked online and the same part is now $248. You may be able to find it cheaper somewhere else.
http://www.amazon.com/gp/product/B001CO317M/ref=oh_o02_s01_i00_details

Hope that helps!

03-26-2012, 07:38 AM	#3
impboy Registered User Join Date: Nov 2007 Location: san diego Posts: 53	Here's an update for those of you searching for a solution to your 1130 issues. I installed a new MAF (from Amazon.com for around $150) and my car hasn't tripped the 1130 code for about a month now. Here's some history that may help you decide what to do. About 2 years ago, I got the first 1130 CEL code. I cleaned the mass air flow sensor, put it back in and it ran fine for about 7 or 8 months. The code tripped again and I repeated the same procedure. This whole process started happening more and more frequently until it started happening about every 5 to 7 days. The car was running rough at idle and my overall gas mileage was slowly getting worse. Along the way I changed all the spark plugs and the spark plug tubes. I checked the vacuum of the gas cap with the car running to check for possible oil/air separator issues. The cap came off easily and the amount of sucking noise was normal. The issues with the check engine light coming on more frequently should have tipped me off that it was the MAF all along. I'm surprised I got two more years out of the MAF by just cleaning it. BTW, this car has just over 80k miles on it. IMHO... If you can clean the MAF and go for many months without the CEL coming on, go for it. If you easily take off the oil cap, don't start trying to replace your oil/air separator yet. If the CEL is coming on regularly after you clear it, buy a new MAF. I got a brand new one from Bosch through Amazon for way cheaper than I expected. I paid $166 but I just checked online and the same part is now $248. You may be able to find it cheaper somewhere else. http://www.amazon.com/gp/product/B001CO317M/ref=oh_o02_s01_i00_details Hope that helps! __________________ 2001 Boxster - savanna on black 1960 MGA http://i8.photobucket.com/albums/a18...7/mgaside2.jpg Last edited by impboy; 03-26-2012 at 07:42 AM.