so, after checking the following:
fuel pressure good ( in car gauge)
no boost leaks
injectors test good
MAF test good
tried second MAF ( ran better - but then back to the same)
battery cables clean (good ground)
"new" engine harness
ECU - cleaned connections - (did have some green stuff)
disconnected battery overnight
new fuel filter
plugs good (stock - gapped .35)
even low boost doesnt solve problem
all relative connections cleaned\ dielectric greaseI still have a car that "feels" lean - sometimes so bad i can only go 65mph in 4th gear- more throttle only results in shudder\ stumble\ backfire. back off throttle car smooths out and speeds up a little. other times (rarely) it runs fine. 90 mile road trip sucked. only codes i got was 33 ( left side o2 lean) left o2 is new oem.
during self test red light is on 10 sec then off 4 sec ( left side)
right side goes off\ on very quickly i dont have a consult or n probe to see live data.
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