AWD-Tony
Proven Member
- 6,801
- 3,735
- Sep 11, 2017
-
Cincinnati,
Ohio
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Not necessarily, global Afrs don’t give you a picture cylinder to cylinder, I’ve had two customers that had a bad injector and the afrs were spot on. The motor was knocking like crazy. That motor sounded like absolute shit to me. That headgasket failed after detonation .... Imo anywayThey definitely had compression getting into the coolant system. Their radiator ballooned when they removed it. I did watch this build and can’t remember if they installed new pistons or not. If it was knocking or fuel related, wouldn’t the tuner have seen this and the afrs. Real curious what actually happened.
Not necessarily, global Afrs don’t give you a picture cylinder to cylinder, I’ve had two customers that had a bad injector and the afrs were spot on. The motor was knocking like crazy. That motor sounded like absolute shit to me. That headgasket failed after detonation .... Imo anyway
Because they made up for it by running the other cylinders richer to get the right global number from the header which is reading the total O2 output, not just a single cylinder.That doesn’t make sense to me. How does two bad injectors not effect afr?
Because they made up for it by running the other cylinders richer to get the right global number from the header which is reading the total O2 output, not just a single cylinder.
They would likely look fine, again the overall fueling is what is read by the o2 sensor, you can manipulate the injectors to supply enough fuel to look good on a single sensor, thats why some racers run one o2 sensor per cylinder to see if a single injector is completely failed or is for one reason or another not outputting what it should, whether one or a few are not contributing enough.
Yes in deed and don’t forgot.... a lot of tuners are expecting a car that is boost leak tested and ready to go. There getting paid to tune not trouble shootThey would likely look fine, again the overall fueling is what is read by the o2 sensor, you can manipulate the injectors to supply enough fuel to look good on a single sensor, thats why some racers run one o2 sensor per cylinder to see if a single injector is completely failed or is for one reason or another not outputting what it should, whether one or a few are not contributing enough.