truck wont start

[farmtruc]

Did you do the old screwdriver in the plug wire testing spark on the manifold?

are the injectors firing?

like they said, maybe vats?
do the security relearn and see if that helps. if not, have your turner turn off vats in the pcm, if that ain't it, maybe the first thing you should try, get a test pcm.

[RedHeartbeat]

Bad crank or cam sensor or broken wire in either one of them. Ohm out the wire from connector to PCM and check for a good circuit. Swap them with known good sensors.

Also, try a test noid light on the fuel injectors to see if they're firing.

[2000gmc]

Did you do the old screwdriver in the plug wire testing spark on the manifold?

are the injectors firing?

like they said, maybe vats?
do the security relearn and see if that helps. if not, have your turner turn off vats in the pcm, if that ain't it, maybe the first thing you should try, get a test pcm.

how do you do the security relearn, i think am gonna pass by the junk hard to pick up a pcm, because I cant turn off the vats, really i cant change anything on pcm with my hp tuner. so hptechsupport said that my pcm lost its vcm id #, so it can only be retune if i have the year/model license, which i dont have, i did the single license. NOW that i think about it all this started when the trucks security light came on, and then i couldent do any changes to the file. thanks for the help.

[RedHeartbeat]

did you try a download complete operation from the PCM to the laptop?

[2000gmc]

did you try a download complete operation from the PCM to the laptop?

not sure what you mean, i tried reading the pcm and it does but it wont give me the option to license, since i dont have enougth credits for the year/model license. sorry man, still kind of new at this tuning.

[RedHeartbeat]

you should have got 8 credits when you bought HPTuners and your PCM only should require 2 to license the PCM. You should be able to download the tune from the PCM and view it in the editor if you don't have any credits available. Where are your 8 credits?

[2000gmc]

you should have got 8 credits when you bought HPTuners and your PCM only should require 2 to license the PCM. You should be able to download the tune from the PCM and view it in the editor if you don't have any credits available. Where are your 8 credits?

I have two credits left, since I used 2 on the truck, 2 on my brothers truck, and 2 on the gto. But I can't do a single license on my truck again because it says that their is no vcm id.

[RedHeartbeat]

I wonder if NP or a local tuner that has the ability to load a GM factory tune into the PCM can rewrite it? In order to keep from having to buy another license it has to be put back in the PCM you have. Would be nice if you could get a GM tech to do that for you with their hardware.

[2000gmc]

you should have got 8 credits when you bought HPTuners and your PCM only should require 2 to license the PCM. You should be able to download the tune from the PCM and view it in the editor if you don't have any credits available. Where are your 8 credits?

I have two credits left, since I used 2 on the truck, 2 on my brothers truck, and 2 on the gto. But I can't do a single license on my truck again because it says that their is no vcm id.

[05silver]

do a 30 min. learn

bump the starter (with the key) and leave the key in the on postion, after 10 min the security light will turn off for 10sec...do this 2 more times. when youve done it 3 times the security has been re-learned you should be able to start it. be sure to watch the clock though

i just saw your in houston, what part?