I need a little tuning help on what table would need to be adjusted to help with the idling down of the car. If i make a pull and then let off it will die when the RPMS drop, even if i just slow down to stop it will die. What table would i need to adjust to help compensate for this so that the car doesn't die?? Thanks
car?
mods?
upload tune?
upload log?
We cant help you without knowing any of the previous or looking at the tune and the log of the problem.
2003 Z06
Forged 347
PTE Billet 67/65 Turbos
FMIC / Dual 50mm Tial BOV's
ID 1000 Injectors
RSI Stage 4 Fuel System
07 Z06 Cam
Tripple Nozzle Meth
ACT Twin disk clutch
25# Boost
never had an issue with this, but you could try changing the fueling in deceleration enleanment
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Last edited by KShef; 04-26-2011 at 05:34 AM.
im having the same promblem some what on my turbo 3800. I was told it could be the air back flowing and being read twice by the maf. I havent done it yet but need to get the maf tunned closer and up the idle speed a bit.
1999 buick regal gs (l67) with a forged low compression bottom end. st4 cam, stage 3 heads, pt74 turbo, 100 shot of nitrous, custom turbo kit, sheet metal intake, a1000 fuel pump, 80# injectors, lt1 maf and ls1 tb....anything else? i run 23psi on pump (daily) and the car idles around 1k rpms. sorry for no caps, im using my phone.
Ok, i am home now, so i will upload 2 tunes. The first one the car fine on decell and the second one it will stall.
Log of it dying?
2003 Z06
Forged 347
PTE Billet 67/65 Turbos
FMIC / Dual 50mm Tial BOV's
ID 1000 Injectors
RSI Stage 4 Fuel System
07 Z06 Cam
Tripple Nozzle Meth
ACT Twin disk clutch
25# Boost
I will go ahead and flash the other tune on the car and take it for a spin around the block and post it up this afternoon.
I did also notice that the decel enleanment on both tunes was the same.
Ok attached is a scan from when it dies.....this was about as good as the car has acted lately, and it still died about 10 times on the way home (2-3 miles).
No help?
Ill try to look at it tomorrow for ya. Overwhelmed with a toasted engine at the present.
2003 Z06
Forged 347
PTE Billet 67/65 Turbos
FMIC / Dual 50mm Tial BOV's
ID 1000 Injectors
RSI Stage 4 Fuel System
07 Z06 Cam
Tripple Nozzle Meth
ACT Twin disk clutch
25# Boost
A couple things I noticed...
Your MAP sensor looks like its dead
Your fuel trims are all over the place
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Last edited by KShef; 04-26-2011 at 05:34 AM.
I noticed the fuel trims, and i am assuming that the O2 sensor needs to be replaced. It levels out perfectly during WOT, but under cruising and idling it fluxuates a lot. The MAP sensor i just replaced, so i will double check that the plug is securely connected.
Did it throw a MAP code?
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Last edited by KShef; 04-26-2011 at 05:34 AM.
The light turned on yesterday and then went off before i got home and i forgot to scan it....but i will here in a few.
Attached are the DTC's that it threw. the Rear 02 code was thrown, but the car has one of the old 02 sims in the rear and i thought that the code was turned off, but i guess not.
Keep in mind with the other codes that the car just had the A/C and ABS deleted. But it also shows a low voltage from the MAP sensor, so i will swap it back to the old sensor to see if it fixes the problem.
How did you arrive at the values in your IFR table?
You might want to start a new tune from scratch to get all the kinks worked out...sometimes things get out of whack
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Last edited by KShef; 04-26-2011 at 05:34 AM.
Def. not going to start from scratch, been there, dont that several times so far. The tune the does not die and idles fine, the injector values and such are completely messed up, but the car runs....the one where it dies, the car runs PERFECT except for it dieing, which just started last week randomly and it has never dont that before.
Just because it runs, doesn't mean it runs well. The stalling problem is probably a combination of all these little things. The IFR you gotta get right...
Hope you get everything ironed out...I look forward to seeing what that beast will do
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Last edited by KShef; 04-26-2011 at 05:35 AM.
Use the compare function in this software, that'll point you in the right direction.
10 lb/hr? 16* flat in the HiOc? Seriously?
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