i have a gen 3 with a p01, i have a 3 bar map sensor in my intake but not using the 310 table, im using the 105 . i want to do the real time tuning. so i can dail my ve in. is there a certain tune i need? or when i use the 3 bar and it o.s. will it give me what i need to do the real time tuning? any help would really be appreciated.here is my tune.2003.seirra.gold.series.nummber.2.hpt here is my log from today25-02-06 15-08-33.hpl. again thanks
2003 GMC Sierra 1500 rcsb, lowered, black, bored out lm7 to ls1 flat top pistons, trick flow cam spec#s 228*/230* 585/585
lsa 114, double roller timing chain, arp everything king rod bearngs , clevite mains 10 10 , rings gapped , , tbss102mm, 100shot wet nitrous, headers, 4l80e 3800 ptc stall, tuned. rollin on 22" rims
humm welp, 24 views no respond, guess i pissed of the powers that be. about decapped injectors.or nobody knows. highly unlikely.
2003 GMC Sierra 1500 rcsb, lowered, black, bored out lm7 to ls1 flat top pistons, trick flow cam spec#s 228*/230* 585/585
lsa 114, double roller timing chain, arp everything king rod bearngs , clevite mains 10 10 , rings gapped , , tbss102mm, 100shot wet nitrous, headers, 4l80e 3800 ptc stall, tuned. rollin on 22" rims
RTT.jpg
You need to select whatever custom operating system you want to use, save the file, close then open it, then do a write entire.
The VE in any of these is going to be empty. So you'll have to populate it with yours. Then you'll need to set the MAP values for your specific sensor.
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you posted this 12 hours ago.Originally Posted by mychevyisntheavy
that was 10pm my time.
you cant honestly expect people to answer while they sleep do you?
i think everyone in here has a job and cant reply very fast
I cant seem to let those injectors go haha, i am sure they are hurting more than they are helping, near 5,000RPM, 70% throttle, and only 30% duty cycle on injectors. It is also very rich at that same time. Its your project though, as long as you are happy with it, just giving advice.
Screenshot 2025-02-07 172305.png
Last edited by twenglish1; 02-07-2025 at 04:57 PM.
I use the 1 bar sd os a lot. Ive never had it blank the ve table. Not a fan of the 1 bar maf os. I dont normally use rtt on the dyno, it gets used for idle sometimes. The main benefit is being able to fail the maf and still have the ho and lo spark tables work as intended. Really good on older os with 2 ve tables since it gets rid of the secondary ve. I also swap everything to a 2002 os anymore since knock sensor control sucks on 99-00 vehicles.
Last edited by 04silverado6.0; 02-07-2025 at 05:59 PM.
^^^ I think you're right. I think it's just the 2 and 3 bar that the VE starts out blank. I rarely use the 1 bar COS.
EFI specialist
Advanced diagnostics, tuning, emissions
HPtuners dealer and tech support
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I noticed some os will still run on the low octane table even with the 1 bar maf cos.
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