T-bird Tim
Registered User
I have a 92 sc, heavily modified with stock computer. I am getting only 8-10 inches of vacume at idle and 10 -12 under acceleration. Cant accelerate hard or it will bog and miss. I also notice a miss at idle. The engine was rebuilt 6000 miles ago and has larger mafs and t-body as well as custom grind cam. I resealed all the IC connections and took it to auto zone for a scan. They told me the 0-2 sensors were bad as well as the air charge temp sensor. I replaced all of these and it still has the same problems. When starting the car when its cold, it will run for a few seconds then idle down so low that it dies. It takes me two to three tries to keep it running. And then I have to let it warm up before I can drive it. I am still getting a check engine light. I tried checking the vacume lines behind the intake but am unsure if they are actually hooked up where they are supposed to be. If anyone has a vacume line diagram they could send me it would be greatly appreciated as would any other ideas on the problems. DIS maybe?