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Old 02-18-2021, 06:01 PM   #32
porschefan76
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Join Date: Feb 2020
Location: Coastal NJ
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Quote:
Originally Posted by blue62 View Post
Agree your P1126 is another issue.
Perhaps some form of vacuum leak.
Or MAF sensor but there are ways to test it.
Yes, I agree. As you pointed out though, the downstream O2 sensors do look like something is up, so I won't ignore them.

The MAF appears to be operating properly, 15 kg/hr at idle and the Voltages looked about right last time I pulled data. I pulled some data on my test drive after changing the fuel injectors but I was in a rush and I'll need to pull more. Will pull MAF, O2, Fuel Trim and Engine Load data next test drive after I test cats, smoke the intake and replace the spark plug tubes.

Thanks again!
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