Do you really mean that your fuel trims FELL to 50%? STs were in the 30s in your screen shots....
Dreaded code P0300, have a few scan shots
- Thread starter th3 shifty
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th3 shifty
Full Access Member
Here were the screen shots from when I was warming up the truck. I could only get it to 167*F as it was 20*F outside with a windchill to make it 8*F that day.
These are the only live parameters I can see on this Foxwell scanner
These are the only live parameters I can see on this Foxwell scanner
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east302
Full Access Member
Did you get the o-ring sorted out on the injector housing?
You may have a lower setpoint thermostat on it, I think 190-F is stock?
Your bank 1 trims are sort of ok - short plus long term should be around 10% or less. Bank 2 is off, that’s for sure. Increase rpm and see how they respond.
The last fuel trims listed with the oxygen sensor readings are catalyst monitors. The 99.2% should mean that the catalyst is doing its job.
You may have a lower setpoint thermostat on it, I think 190-F is stock?
Your bank 1 trims are sort of ok - short plus long term should be around 10% or less. Bank 2 is off, that’s for sure. Increase rpm and see how they respond.
The last fuel trims listed with the oxygen sensor readings are catalyst monitors. The 99.2% should mean that the catalyst is doing its job.
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