Thanks for all your help

Gary

Got it

P0748 code gone with new tune sent, can I still adjust my line pressure and not worry about setting this code again.

Thanks
Gary

Thanks

Tune sent

I am starting a new post as I am not getting any response to my previous posts see 99 silverado setting p0748 code


Still setting P0748 code with 91 tune sent, is there any other mods available before I tear the drivetrain out of this thing, if not I will try replacing pressure sensor but seems odd ...

Help, I've gone back to factory tune so I don't tear out the tranny.

Help!!!

Still setting P0748 code with 91 tune sent, is there any other mods available before I tear the drivetrain out of this thing, if not I will try replacing pressure sensor but seems odd works on factory tune.

Gary

Again what should I do to run 87 fuel only received 91 tune.

I only received the reg perf tune, did not receive 87 tune.

Thanks
Gary

99 silverado 4wd ext cab 5.3
Predator U7198 Software rev 2.12

Is there any benefit to going up to rev 2.13?

Johan sent me a tune to address P0748 code, also changing for 91 octane. If I want to run 87 should I just remove some timing or do I need another tune that will still address the P0748 ...

Thanks,

Received tune, top notch customer support even when the customer can't figure out how to send an email.

Will install tune in next couple of days, 25 below farenheit here right now, don't think the battery will be fully up to snuff, will let you know how it works out. If I want to run 87 ...

Sweet,

thanks for your excellent customer support.

Just wondering, I currently have a K&N cold air intake and 3" flowmaster cat back exhaust, with a set of short tube headers waiting for install, (summer time) will I need a custom tune for this combination? Is there a 91 octane tune available as ...

Seems for some reason I was dropping the .com part of your email address, sorry for the brain fart,

just resent

Gary

Any luck?

Gary

Resent

Gary

Johan, sent original tune to you last week, any progress?

Thanks
Gary