got it nstalled and its running fine... ill post more later... but when sitting at a light i turned my headlights on and it just died !!!!! no matter what mode im in . i remember something about the using a shielded cable. and yes the cable does run by the headlight switch... do i need to re route or can i shield it ??? i cant get anyone at dp on the phone

 

if you just got the tunes it should already have the shielded wire..i would try adding another shield before moveing it..you can get colored shield at wallly world pretty cheap..

 

OK, just so I am straight, chip installed and running fine...more later. Turn on lights and it dies? Does it do it every time? After it dies, you turn off lights to get it to start or what? How much light related is this?

 

what did you mean how much light is related ??

I got Jody on the phone and he thought it might be an RF interference issue. So I pulled the cable back down so it's away from the headlight switch - no change.

I wrapped the entire cable in aluminum foil to shield it more - no change.

So when I turn on the parking lights no problem, but when i turn the headlights on, the truck just dies.

Unless somebody knows anything else it could be, guess the DP tuner comes out

 

does it do this with the chip out???

 

Holy cow i fixed it !!!!

I retraced my steps to think of EVERYTHING i did to do the install. Well near my master cylinder my installed had mounted the alarm system horn. There is a bolt (8mm head) that's just above the M/C. Just for grins, I took the speaker off and put the wires back and got it really tight and it WORKED. I'm guessing that big black wire off it runs to the PCM ???

So i took it completely loose, truck runs without headlights, dies with. So I guess that has to be it !!! man do I feel STUPID !!!

Either way now everything is fine !!! .. so now I can finish the control box mount and get done !

 

Post deleted, easily distracted. Glad you got it pinpointed.

 

glad you got it....have fun with the new tunes..

 

I bet Jody is glad to hear he doesn't need to send out a double shielded cable to every DPTuner customer in the history of planet earth. CAUSE YOU KNOW HE WOULD!

 

Very interesting -- my truck started doing that when I switched to HID headlights. Turn on the headlights, truck would stall. I even got a couple PCM resets (Gauges went full-sweep then back to zero, and I lost my trip mileage). I didn't ground the power supply to the driver-side light (being lazy). They have mounting brackets -- passenger side was bolted right to the fender wall, driver-side was stuck in the plastic battery/air box housing with some padding. When I grounded that supply, no more problems.

Just goes to show you that the simplest things can bite you in the ****... ESPECIALLY grounding... I was torqued when I realized how simple the fix was (and how dumb I was ).

Joe

 

TNT you had me actually go out to my truck start it and turn the headlights on, now I feel STUPID !!! lol