Need help...I changed my thermostat and did a coolant flush and now my check engine light is on...any ideas?1999 Tj 4.0L Sport

 

No help...thanks this site sucks

 

People have lives bro sometimes it takes awhile, it is the weekend after all.

Try disconnecting the negative terminal, that should get rid of it. Sometimes the computer will have a hiccup when you do that kind of stuff. It will usually erase the problem out of the PCM memory after 30-40 normal starts.

 

Thanks I'll give it a try...sorry just frustrated had to pick up two sexy ladies and go to a party and didn't know if I should drive

 

Turns out I pinched a wire on my temperature sensor on my thermostat housing....fixed it now my light is out

 

Glad you found the problem and it wasn't anything major.