As the title states, I am having a problem with low MAF reading with high fuel trims at idle.
First some background on the car:
2008 40AE
66000 miles
BHR Ignition
BHR Midpipe
VFAD removed and capped
From other threads determined that i most likely have a vacuum leak. Things I have checked so far:
Pulled upper intake, checked gaskets.
Vacuum tested all hoses that I could find.
Also checked that ssv and vdi held vacuum.
Changed MAF
Replaced short jet air hose
Compression Test. All faces were between 7.1 and 7.5 kg2 when normalized to 250rpm
Smoke test. Had leaks at all three hose connections behind accordian. Put clamps on them and smoke test again. No further leaks.
Here are the most recent logs
Vacuum Gauge
Hard to see, but between 17 and 18 in Hg
Any ideas of what to check next would be appreciated.
First some background on the car:
2008 40AE
66000 miles
BHR Ignition
BHR Midpipe
VFAD removed and capped
From other threads determined that i most likely have a vacuum leak. Things I have checked so far:
Pulled upper intake, checked gaskets.
Vacuum tested all hoses that I could find.
Also checked that ssv and vdi held vacuum.
Changed MAF
Replaced short jet air hose
Compression Test. All faces were between 7.1 and 7.5 kg2 when normalized to 250rpm
Smoke test. Had leaks at all three hose connections behind accordian. Put clamps on them and smoke test again. No further leaks.
Here are the most recent logs
Vacuum Gauge
Hard to see, but between 17 and 18 in Hg
Any ideas of what to check next would be appreciated.
Low MAF, High Trim at Idle
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