ZR-1 Net Registry Forums - View Single Post - Jumped the gun still having stumbling issues

-=Jeff=- · 05-22-2008

drove it to lunch 5min away.. it was fine, it sat for 45-50min. drove back.. died parking it again..

at lunch I smelled raw fuel, but there was also a stall truck and wind was blowing from the stalled truck to me, Guessing he had Fuel issues too.

I will check pressure on the injectors when I get home after work. I will pinch off the return line.. I am thinking it is one of these 3:

Coils
Injectors
ECM

that is in no order

I wonder if the ECm has issues when it switches from open to closed loop. Although I felt the stumble in open loop, I also noticed when I pulled in to fill the tank, if I gave it more go pedal it roared back to life.. HMMM

05-22-2008	#5
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,168	Re: Jumped the gun still having stumbling issues drove it to lunch 5min away.. it was fine, it sat for 45-50min. drove back.. died parking it again.. at lunch I smelled raw fuel, but there was also a stall truck and wind was blowing from the stalled truck to me, Guessing he had Fuel issues too. I will check pressure on the injectors when I get home after work. I will pinch off the return line.. I am thinking it is one of these 3: Coils Injectors ECM that is in no order I wonder if the ECm has issues when it switches from open to closed loop. Although I felt the stumble in open loop, I also noticed when I pulled in to fill the tank, if I gave it more go pedal it roared back to life.. HMMM __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978