New build - 400Hp SBC in '76 vette, 350cid with mid cam profile. brand new Pro-Flo4. = all sensors are OK but O2 sensor out of range. I can not get O2 sensor to be in range (green). AFR is high at 22+. can not change. fuel is pouring thruthe engine. Could not get IAC less than 80% during set up regardless of idle speed. set idle at 725 rpm and moved on. Car is set at 12 degrees BTC but running extremely rough due to the massive amount of fuel being injected. 29# injectors at 58psi (edelbrock sump EFi pump)
disconnect O2 sensor and diagnostic light goes from red to green (that I don't understand.) AFR drops.
any idea why O2 is not in range?
Thanks, Joe
disconnect O2 sensor and diagnostic light goes from red to green (that I don't understand.) AFR drops.
any idea why O2 is not in range?
Thanks, Joe
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