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Its been awhile guys, but still working on the 68.. I am hoping to get it finished up this year and drive it. Have been really busy trying to get the rest of the truck done... Anyways, haven't...

Well I actually got to drive it the other day...... Just went down the block and turned around, it hit second gear so that is a good sign. First time it has seen day light in 6yrs....

I haven' had a chance to closely compare the two. Took a quick look and isn't a lot of difference between the two. When I get back home I was hoping to look further into them.

Does it go into 4 cyl. mode while idling at all. I am using SBC mounts and I noticed that the header is hitting the cross member.

Had it running for about an hour today and no problems.. The...

Why was it annoyinh, just the change in tone? I heard that spirl tech muffler sound good..

Ok, I haven't done the "load file for comparison" yet, but will try it.. I wided the engine up to keep the DOD active so will want that turned on..

I loaded tje tune that VEGASROBBI posted.. It had the same operating sysyem, but is a "M" engine and mine is a "O"

Well I loaded that other tune and it fired right up... Scare the sh@t out of me (open headers)... Now I want to know what the difference is between the two.. Is this other engine DOD, and if not...

I even tried both starter relay circuit and powertrain relay tricks and nothing

Is it a old bodystyle truck or new bodystyle (donor truck).

No, just got back from work and I got a virus on my laptop... I was going to try the tune posted by VEGASROBBI and see if that works... I have exhausted everything else...

Not sure what the "service #" is, but the OS is 12614088

coil and injector status does not change on EFI scan tool selected pid list

unpluggeed cam sensor and still have engine rpm.. viewed by black box date list..

Was this with scanner or noid/looking for spark on a plug?



I have a spark tester one #2 plug wire and a nois light on #2 injector..

I have 60ps1 fuel press.

checked all grounds at pcm...

I am going to disable vats on my 08, turn the ign. to run and then jumper the starter relay... I betcha it won't start...

The 08 pcm DID NOT flare up at all. I didn,t disable vats, but is should of had spark and started and died.... I went in and deleted evap, post O2, and all the other crap I don't need.. I may have...

It is out of a 2007 tahoe new body style... RPO LMG 8tg digit is O

Full OS flash and no codes.... Tried my PCM from my 08 and it did even flare up and die... No spark either

Yep, I have done everything you described and still no spark and no injector pulse

Sorry, that took awhile to figure out... I do have cam rpm..... I also checked every pin in both ecm conncector and they are all right and all in the right spot......

???

I think it is still...

Cool, I will have to update and then try...

I "validated pids" and cam rpm still doesn't show up..

when I try to do that it sayes no pids selected?? do yo need a SD card for that??

how do you do "black box logging"?