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oversized injectors without any fuel management
- stock injectors on car
bad MAF
- Replaced that with no better luck
leaking/sticking injector/s
- Need to check this
dirty air filter
- Filter is ok
restricted fuel return line to the tank
- No visual defects
BOOST LEAKS/metered air not making in into the cylinders
- Have checked for and fixed all intake leaks
I did lean it out about 20% on the top end where the misfire was occurring. This eliminated it, so I took a log and towards 5-7K there was a knock count of 2, 19, and 39 through 1st 2nd and 3rd gears along with declining o2 voltages all the way down to 0.76V. I did this only one time as to not damage the car. I slowly started to richen things back up and it only took a few percent before it was once again misfiring so I zeroed it out and left it.
As for the vacuum source for the fpr, it is correctly hooked to the solenoid that's connected to the one nipple on the manifold.
I'll be tearing into it this weekend quite a bit I think so hopefully something will pop up. Thanks
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