I am having a rough idle issue with a 1995 Tacoma 2.7L.
The engine has 200K on the bottom end and about 50K on a head gasket/head job.
I first noticed the rough idle after coming off the interstate and coming to a stop and it would usually clear itself up after shutting the engine off. This would only happen only occasionally at first.
Now I can short the battery terminals and restart which will get rid of the problem until I run it back down the road. A few minutes of driving will cause the issue. I can run it forever idling and sitting in the driveway with no issues and once it starts I can turn the engine off and come back the next day and still have the issue until I short the cables.
I have replace the plugs, and cleaned the MAF and throttle body. There are no CEL codes.
Unplugging the MAF after it starts runing rough only improves the idle slightly so I do not think it is the MAF.
Catalytic converter and o2 sensors have about 50K on them.
Has anyone ever experienced this? Any Ideas?
Thank you in advance for any info.