CEL codes P1128 & P1130

[Jager]

With those two trouble codes, P1128 and P1130, the AOS is also suspect.

[blue62]

Originally Posted by Jager

With those two trouble codes, P1128 and P1130, the AOS is also suspect.

There is a spec for vacuum at the oil filler cap. It Has to be read with a manometer as a regular vacuum gauge is not calibrated fine enough. I do not know the spec but if it exceeds the spec then the AOS is suspect. This info has been posted by member "JFP in PA" so if one does a search you should be able to find the info.

[blue62]

I just went and did a search under manometer.
The spec calls for under 5in/wc at operating temp.
You need a manometer and an oil cap with a fitting for the vacuum hose.