1997 HONDA CIVIC CHECK ENGINE LIGHT

  • Tiny
  • rikynik
  • 1997 Honda Civic

Engine Performance problem
1997 Honda Civic 4 cyl Front Wheel Drive Manual 250k miles

Autozone diagnostic test came back as "engine lean fuel trim". He said no parts needed only adjustment. Can you tell me where and what to adjust or do I need to take it in for specialized fuel metering? Runs rough at idle and losing gas mileage. Was 29mpg, now 23mpg. Thanks.E

Do you
have the same problem?
Yes
No
Friday, April 4th, 2008 AT 3:06 PM

1 Reply

  • Tiny
  • Bruce Hunt
  • Expert
  • 3,761 posts

Might be nice to know what the code number was since there are two very closely related. Anyway, here is a list of things to look at.

- Air induction system (filter and breather system)
- PCV hose connection
- PCV hose
- Injector blockage
- Mass air flow meter
- Engine coolant temp. Sensor
- Fuel pressure
- Gas leak on exhaust system
- Open or short in A/F sensor (bank 1 sensor 1) circuit
- A/F sensor (bank 1 sensor 1)
- ECM

Was this
answer
helpful?
Yes
No
Friday, April 4th, 2008 AT 4:28 PM

Please login or register to post a reply.

Similar Questions