myronf

I was idleing for a while today in traffic with an air temp of about 85F and a coolant temp of 104C (219F). The check engine light came on so I headed to Autozone and the pulled the code. It was P1130. My car is a 2001. They told me that I needed a new o2 sensor ahead of the cat on the 4-6 cylinder side. Should I just replace the sensor, or look at something else?

myronf

I should have said above that the car only has 28K mi on it.

Cosmo Kramer

alabamatoy

That code on my 2000 turned out to be a leaking vacuum line. I discovered this *after* replacing the O2 sensors.

Ahsai

Agree with others it's not the O2 sensor. Second what Cosmo said.

myronf

For what it's worth the engine seems to be running smoothly. I don't have much experience with Porsche engines. Do I need to take it in or is there something that I can do? On a more "traditional engine" I would just spray something like wd 40 on suspect hoses, connection points, and listen for idle change.

myronf

UPDATE:

When fixing something you should start with the easy stuff first. I decided to clean my MAF sensor. When I got ready to remove it, I found that the last person under the hood (no,not me) neglected to tighten the hose clamp for the large diameter hose that runs from the air box to the throttle body. Whille I was at it I did clean the MAF sensor, but it was clean. The idle is now smoother. I am now convinced that this is where I was getting a low rpm air leak which gave me my P1130 code.