Intake air leak

[fab]

Hi

I own a 00 boxster w/approx. 38k mikes. My CEL light came on with code 1130. CEL 1130 point towards intake air leak or vacum air leak.

How does someone check for these leaks?

[Loren]

P1130 Oxygen Sensing Adaptation, Idle Range, Bank 2 – Below Limit

Potential causes:

– Incorrect signal from MAF sensor

– Fuel pressure too high

– Fuel injector leaking

– EVAP canister purge valve open

[jaekormtb]

Have a look at your oil filler tube. Is there an oil accumulation on/around it, particularly underneath? How about an oil buildup on components below it? The oil filler tubes are prone to cracking (Porsche issued a TSB for this), which will cause a vacuum leak and set off various MAF codes. It will also cause the car's idle to surge at times.

[fab]

Have a look at your oil filler tube. Is there an oil accumulation on/around it, particularly underneath? How about an oil buildup on components below it? The oil filler tubes are prone to cracking (Porsche issued a TSB for this), which will cause a vacuum leak and set off various MAF codes. It will also cause the car's idle to surge at times.

I'm not sure where the oil filler tube is? But it's it where the spark plug is I just had my plugs replaced. No signs of oil. And the car runs fine, no idle surge.

I'm gonna reset CEL and see if this happens again. This is my second CEL on 1130 and it has hapen only when I'm in stop/go traffic. I suspect it will come back....fyi i did clean the MAF.