Greetings,
Got my 98 legacy and ever since I got the car when the engine is warmed up and idling, it hunts around for different idle speeds. It’ll idle at 5-600rpm, then it’ll go up to 900, sit there for a few seconds, then go to 1050rpm and sit, then drop to 500, etc. it’ll try different RPMs, stay there for a few seconds, then try a different one.
There are no error codes on my scanner, nor is there any status lights on the dash (except ABS, but that’s not relevant here I’m sure.)
To me this speaks of some kind of sensor giving erroneous readings and the ECU is trying to acquire a baseline. Is that right? Where should I start with diagnostics? Cleaning the MAF?
Thanks in advance for any help.
