Callum Mccawe
Probationary Member
- 25
- 0
- Jun 29, 2017
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Whakatane,
New_Zealand
Need some help, I’m seeing an A/F ratio of 19.4-20.0 at the Ecu o2 signal wire, if the car is off but ignition on it says that same reading, if the car is running it’s the same again, if I unplug the o2 sensor connector it is still the same!!! The car is undrivable atm due to a stuck brake Caliper but if I hit the gas quickly while stationary it will dial down to 14.7.....is there a problem with some other sensor cos it doesn’t matter if the o2 is plugged in I still get these lean readings....the car is also running rough, by sound out the exhaust (missing) and by looking at the engine it shudders every now n then like it’s missing......and only happens when car has warmed up, everything seems fine when it’s cold, could this be a bad knock sensor or crank sensor? Clogged injectors? I’m really stuck don’t know where to look next.....Ive got a Datalogger cable and EvoScan software coming in the next few days which I have no idea how to read haha but what should I be looking for in terms of the logging