I haven't found anybody near me that will read out the codes (for a stranger at least) for free. If you have to pay for a diagnostic, it is often worth it.
What type of maintenance have you done on the car? O2 sensors should be due and that will make it run rich and sooty. Also check the EGR that it is closing properly at idle. May need cleaning.
I have a high idle problem similar to previous poster, but it happens most of the time....about 50 rpms high and is running rich, consuming more gas and has the soot around the tail pipe. I have nearly 160k miles on my 97 SL1 with AT. Will the code readers at the various auto parts store reveal what is defective and if so, any suggestions on some parts stores that do this for a min. chg. or for free. TIA, MR
Are you getting a service engine light? If not, there will be no diagnostic/error code to read. Possible defective CTS sensor telling the engine it is always cold thereby running it rich?
Bob
Yes, more often than not.
I keep up with regular maint. etc. and try to repair or replace myself if possible.
I cleaned that a year or so ago after getting a lite to service eng. Seemed to do the trick, but may need another.
Thanks. I'll check it out. MR
No lite, so will rule that out.
Where is the CTS sensor located? Thanks, MR
driver wheel side towards the to[ center. Under the air tube intake.
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