Kestrada5
NAXJA Forum User
- Location
- Thousand Oaks CA
Hey so I have a 1999 xj 4.0l auto and 2 days ago started experiencing rough idle and at a stop light my idle dipped down to about 500 rpm and my fuel gauge went all the way past (E)to the needle stopper but drove fine. I know a few things about cars so I figured to clean the IAC(very carefully, did not turn the pintle) and that made no differences after I reinstalled it. I then bought 4 different IAC’s one from Autozone, Napa, and orileys having a different one every time and it still did not fix the issue. I was able to manually adjust the brand new one I have in the throttle body right now (very very carefully) and yes I know everyone advises against it or says they’re not adjustable but every time I installed a new one the idle stayed at 2k for over 5 min until I killed the motor.The idle is where I want it around 900 rpm but my fuel gauge still isn’t working and check engine light is still on. Now I believe there is a short in the circuit but I’ve resistance tested all 4 pins in the harness from the plug to the PCM and all seem fine. If anyone has tips or pointers on how I should go about fixing this they’re greatly appreciated. Thank you.
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