Keep asking around. Here there are 2 differwent guys at 2 different shops that used to be heads of service at different dealerships. They know what they are doing and don't jab ya.

 

Yeah, scratch that. Forgot your truck is OBDI, car code is OBDII...

 

So I gave up on the db2 for the time being and ordered an aldl cable to set timing with my ds4 pump. I should be able to set it with that engh program but from what I read online it won't go into the mode if there are any dtcs. Anyone know if there is a way to "tune out" the boost solenoid and egr on the obd1 systems? I have dtcs from removing those when I made a manual boost controller and removed the vacuum pump.

 

Nope.

You need to have the PCM reflashed ("chip change" on an OBDI).

I think some guys get away with leaving the egr hooked up, but you're already past that point by the sounds of it.

And yes, you need to clear the DTCs or TDCO won't intitiate. Engine has to be up to temp also.

If you can find a PCM in the scrap yard that's already an L65 calibration, you may be able to plug that in and get away with it. That should work, but no guarantees....

 

Ive still got everything that I took off I was just trying to avoid putting it all back on. Guess ill cross that bridge when I get to it.

 

Just to make sure we're not chasing our tails here; the truck was running properly before you pulled the DS4 off right?

This isn't a problem that's been around before you tried to install a Db2 is it?

 

The truck ran fine before I removed the ds4, no problems at all now that I think about it. Guess I shouldve left it alone. I'm pretty positive that your right about the timing. I'll know for sure when I get the cable and hook it up.

 

finally got my cable in the mail and figured out how to set it up. i hooked it up to the truck and yall were right about the timing, it was about 11 degrees. im gonna try moving it around when i get another day off and see if i can get it to run.

 

10-4 tell us how you make out

 

I moved the pump around a bit and this is what I got.
Desired inj timing. - 7*
Measured inj timing - 7.4*
actual inj timing - 30.1*

Its still running about the same and throwing cylinder balance fault codes. I used the engh scan tech basic. ( dont have the full program yet) What to do next?