Howdy all,
I am having some issues with my car and I'm hoping to get some ideas on where to start. I've done some searching and talking to people over the last month but have not found much useful info. The car in question is my daily driver and I could not make my living with out it...
2002 Honda Civic LX 1.7L SOHC 5 speed manual trans with 207,000 miles.
This problem started about 2 months ago and I finally have a little time from work, family, etc. to address the issue.
The problem........
Driving around town (less than 50mph) when I shift car to Neutral and am coasting up to a stop light the engine will idle around 1,200-1,400 RPM. But, once I come to a complete stop and THEN let off of break it will come down to around 700 RPM and fluctuate from there to about 1,100 RPM.
Now exiting off of highway from 70mph and shifting to neutral while I coast to a stop it will fluctuate from 1,000 to 2,000 RPM until I come to complete stop and let off of break pedal. If I don't let off of break pedal it will continue to fluctuate. Almost as if it is related to speed, break pedal, and trans input. Which is why I'm puzzled as to where to start. I don't really have the coin right now to just start throwing parts at it or take to a shop. Any suggestions and/or help would be greatly appreciated. Thanks!
Also, when it first started doing this I had a CE light come on. I reset computer via battery disconnect and it stayed off a day or two then came back on. Then it went off on it's own and has not come back on since....
ETA: I have done the cooling system burp/air bleed and it did not affect anything. Nor has any work been done to engine cooling system prior to problems.
I am having some issues with my car and I'm hoping to get some ideas on where to start. I've done some searching and talking to people over the last month but have not found much useful info. The car in question is my daily driver and I could not make my living with out it...
2002 Honda Civic LX 1.7L SOHC 5 speed manual trans with 207,000 miles.
This problem started about 2 months ago and I finally have a little time from work, family, etc. to address the issue.
The problem........
Driving around town (less than 50mph) when I shift car to Neutral and am coasting up to a stop light the engine will idle around 1,200-1,400 RPM. But, once I come to a complete stop and THEN let off of break it will come down to around 700 RPM and fluctuate from there to about 1,100 RPM.
Now exiting off of highway from 70mph and shifting to neutral while I coast to a stop it will fluctuate from 1,000 to 2,000 RPM until I come to complete stop and let off of break pedal. If I don't let off of break pedal it will continue to fluctuate. Almost as if it is related to speed, break pedal, and trans input. Which is why I'm puzzled as to where to start. I don't really have the coin right now to just start throwing parts at it or take to a shop. Any suggestions and/or help would be greatly appreciated. Thanks!
Also, when it first started doing this I had a CE light come on. I reset computer via battery disconnect and it stayed off a day or two then came back on. Then it went off on it's own and has not come back on since....
ETA: I have done the cooling system burp/air bleed and it did not affect anything. Nor has any work been done to engine cooling system prior to problems.
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