1999 Jeep Grand Cherokee Q&A

1999 Jeep Grand Cherokee Question: PCM reprogram

I got the code PO443 (evap purge solenoid) and had the repair done at a local shop but the code will not clear. Does this require the PCM reprogram from the dealership and is this a recall (free) or what is the cost? thanks -
Answer 1
It could be that the purge solenoid was not the problem. I have replaced several LDP pumps for a code P0443 on Jeeps. When the problem is fixed, even if you don't clear the code, the light will go off, by itself, in about 5 drive cycles IF the proper repair was performed. I would recommend that the EVAP diagnostic be rerun and a leak check be performed. Make sure that the Leak Detection Pump is working correctly (LDP). I do lots of Smog/Emission work and this is common on Jeep. -
Related Items:
It would die a lot but now it will not even stay started
The car stalled out on us after being parked for a while. It would start and idle but when tran engaged would stall. Due to previous experience I changed out fuel pressure regulator/filter. Same de...
I notice it when i let off the gas and it kind of feels like something holding back and i notice when it does that the taction control light comes on for a couple of seconds and goes off.It done th...