Hello!
2007 Honda Accord 2.4L I4 99,000 miles, automatic. No codes but long-term fuel trim is at -11%. Short term is around -4%. Was at -14%, cleaned air filter (reusuable AEM dryflow-no oil), cleaned throttle & MAF. Went to -6.3% then went further negative. MAP & MAF data are good, 8.1 inHg & 2.7 g/s, respectively. Oxygen sensor data for B1S2 is around 0.5V & air/fuel ratio for B1S1 lambda is around 1.000 & current is around 0.00 mA. ECT sensor and IAT values look normal. Don’t have any hard warm starts like the result of a leaking fuel injector. Runs fine but I’m concerned, what do you think is causing this? Thanks!
If it runs fine I’d leave it alone. Being the year it It is and obd2 if there was anything to be concerned with there would be a code
