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Teds89IROC · 08-20-2014, 08:17 AM

LT1 and T56 swap into my IROC. The car starts fine and idles fine but I noticed when I'd be driving and come up to a stop I'd push in the clutch the rpms would drop to about 1000 like normal and then fall below and want to die. If I see the rpm's fall below and tap the gas it bumps back to 1000 and idles perfect. I have a fuel pressure gauge and that stays constant as well as my volts while it's trying to die.

I tried cleaning the IAC valve and no change so I bought a new one, did the reset process and no change. Then a few stops later it worked perfect, but has happened again. Is there a learning curve with the computer for this? Any other ideas?

08-20-2014, 08:17 AM	#1
Teds89IROC Join Date: Sep 2004 Location: Haledon, NJ Posts: 5,162 iTrader: (0)	Car wants to die stopping abrupt or slowing down LT1 and T56 swap into my IROC. The car starts fine and idles fine but I noticed when I'd be driving and come up to a stop I'd push in the clutch the rpms would drop to about 1000 like normal and then fall below and want to die. If I see the rpm's fall below and tap the gas it bumps back to 1000 and idles perfect. I have a fuel pressure gauge and that stays constant as well as my volts while it's trying to die. I tried cleaning the IAC valve and no change so I bought a new one, did the reset process and no change. Then a few stops later it worked perfect, but has happened again. Is there a learning curve with the computer for this? Any other ideas? __________________ 1989 IROC-Z 355 LT1 T56 Swapped 2016 Chevy Colorado LT 3.6 v6 2008 Jeep Grand Cherokee Laredo 4.7L RIP 12/29/2016 1998 Honda CBR 600F3 2003 Yamaha FX140