Hi. I have a 96 camry federal 2.2 auto with 307k miles. The short term fuel trim is in stoichiometry but the long term sits around -25. Holding the revs at 2500 improves the long term to -17.
My question is what all could cause this?
I have already replaced all sensors, air filter, purge valve, thermostat, fuel pressure regulator, and the fuel injector cleaning guy said the injectors are not leaking down.
Tested the old and new sensors and all are good. The fuel pressure is also in tolerance.
- This topic was modified 2 months, 3 weeks ago by Taylor Mauldin.
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