Ok so I just installed the LS1 MAF sensor and MAF translater and the car does run better when driving. The biggest problem I have is when the engine is cold the car idles bad. When driving and acclerate from a stop either
hot or cold there is stumble like it cuts out for a second, unless I very slowly push the gas pedal. I just replace the idle air control motor and still get the same thing. I checked the fuel pressure, since I have not checked it since I put the injectors and fuel pump in. The fuel pressure is at 56psi with line off. I had it set to 43psi with line off. How come it jumped up so much. Also I cannot lower it more then 2psi, no matter how much I turn the adjustment screw. So you think I have a bad fuel pressure regulator. Will that caust the off idle stumble. Any ideas???
hot or cold there is stumble like it cuts out for a second, unless I very slowly push the gas pedal. I just replace the idle air control motor and still get the same thing. I checked the fuel pressure, since I have not checked it since I put the injectors and fuel pump in. The fuel pressure is at 56psi with line off. I had it set to 43psi with line off. How come it jumped up so much. Also I cannot lower it more then 2psi, no matter how much I turn the adjustment screw. So you think I have a bad fuel pressure regulator. Will that caust the off idle stumble. Any ideas???