EvilMaster

Ok, so I had a viper 5901 Alarm/Remote Starter system installed in my 2000 XJ. But now I am getting check engine lights triggered.

1: If I start/stop the truck normally with the key. I get no codes at all and everything is fine.

2: If I start the truck with the remote and then put the key in the ignition before the 15 minute warm up time expires, I get no codes at all.

3: If I start the truck with the remote and then push the button on the remote again to stop the engine. Boom I get a check engine light.

Here are the codes I get.

• P0443 - Evap Purge Solenoid Circuit. An open or shorted condition detected in the EVAP purge solenoid control circuit.
• P0100 - Mass or Volume Air flow Circuit Malfunction
• P0400 - Exhaust Gas Recirculation Flow Malfunction
• P0090 - Fuel Pressure Regulator 1 Control Circuit

The wiring of the viper unit is obviously the problem, Any Jeep wiring experts here that can help point me in the right direction??

Nightfall

Couldn't you contact the installer and see what they make of it?

EvilMaster

Yeah, I talked to the guy and he seems a little lost on this. I was hoping for some opinions or ideas from here as I have an appointment tomorrow morning for the guy to look at it. It would be nice to have some suggestions for him, to maybe help speed up the diagnostic side of things.

EvilMaster

So in reading around on the net, I read that the DRL and Purge Motor share a fuse. And that if tapped into this wire, the viper may be drawing too many amps causing the CEL to trigger. Could this be the culprit?

Any other ideas?