2.3L ('83-'97) Poor idle

[Juddys123]

I have a 1990 2.3 with Maf that I’ve replaced all the sensors on that impact the idle. While I have resolved my dying at idle issue, I notice that my idle with constantly change between 1k and 2k rpm. Also when I just crank the truck up after sitting the check engine light will stay off until it heats up and then it will come on and I can notice a loss of power. I know a lot about these DiS systems but this has stumped me. A possible idle reset?

 

[superj]

Sounds like you have a hunting idle problem. Look for vacuum leaks