03-20-2018, 12:02 AM
I bet the injection rates are wrong.
we scope injectors to see if they are in fact rich, we know the displacement and its TBI and 1 injector.
if its way TOO rich at the injector lines (pins) (pulses way too long)
then we check ecu inputs, for wrong,
if all is good for inputs, the ECU is bad. if map/ECT and IAT read wrong we correct that next. (or 02 wrong only hot)
if the injector pulses are good, the injector leaks or the fuel pressure is out of spec.
if rates are ok
then spark is bad. or engine, has pure mechanical issues.
we scope injectors to see if they are in fact rich, we know the displacement and its TBI and 1 injector.
if its way TOO rich at the injector lines (pins) (pulses way too long)
then we check ecu inputs, for wrong,
if all is good for inputs, the ECU is bad. if map/ECT and IAT read wrong we correct that next. (or 02 wrong only hot)
if the injector pulses are good, the injector leaks or the fuel pressure is out of spec.
if rates are ok
then spark is bad. or engine, has pure mechanical issues.
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