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I haven't tried that site in a while. Did you check the preloaded stock tunes on EFI live

Try Holdencrazy.com. Large data base of stock GM tunes. Look at a 01 or 02 Chevy express 2500. Only time GM used a 0411 on the Vortec 454

I have solved my no spark when cranking issue.

My setup is in a swap, l92 454 on 0411 pcm. It would pop a few times and stop sparking. I found that the ignition wire had been moved in the fuse...

PM Jeff "LEXTECH" he will be able to get you a good starter tune.

I am going to try sending it now.

I am going to try sending it now.

I have a mostly Stock tune I can send. It's a startup tune in SD with all EGR and emissions turned off.

PM me your email

Any update on this? I have a similar problem and wonder if this was resolved.

I did not want to spark hook check every llad range as this would be very time consuming.
Just was interested in what the common tred was.

Any sugestions on timing for engine when not in boost, on low compression motors. Currently tuning LS3 forged bottom end 9.5:1CR stock ls3 heads.
Is it common to increase timing to compensate for...

I am looking to get my turbo f-body build on a dyno to get it tuned. It will currently start and idle on the stock H/C/I tune from before the build. Currently I can not get it to move to load on a...