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Discussion Starter #1
Okay, back again.
Losing hope

94 Si
JDM H22a swap

Car ran fine before parked for a month
Now runs horrible.
Idle surge, stalls, when throttle is applied it sounds horrible.
Replaced IACV
Replaced fuel pump
Tested TPS (Working)
Getting spark
New fuel filter
Checked all VAC lines (good)
Tested compression (good)
Fuel pressure is at 42psi on just idle

Only thing I haven’t checked was the injectors, but they only have 39k on them, but still will check them and the Fuel Pressure Regulator.

Before this issue it would stumble when you floored it, but would clear up and was drivable.

I’m lost
 
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