[vettestr]

Hey Gang,
I have an older Pro-jection 4DI system. I am half a$$ed decent about tunning this but am a bit lost or keep overlooking the same thing.

The only symptom is what acts like a lean condition stumble only at light cruz. If at say 2500 RPM and just maintaining that speed the cam is happy and engine is smooth, no ignition issues found but a light hesitation starts, can not see RPM loss but can just feel it. The 02 sensor readings are 0.70ish at this point ??? Any throttle increase or decrease stops the very light stumble. I have fattened up the range but no help.

What am I missing here gang?
Your help and ideas are appreciated.
THANKS Jeff C