Van ran good and strong, except for some cold mornings it would take two or three times to start and then one cold morning it wouldn't start. It cranked over and sputtered a few times and ran the battery down. I charged the battery later that day and refused to start even with starting fluid. So I checked the fuel pressure and found it at 45 psi and so I replaced the pump. And now the fuel pressure is 60 psi and drops to 56 psi and holds for over 15 mins.
I checked for spark and it was good and checked for injector pulse it’s was good. But it still wouldn’t start so I replaced all the ignition parts including the crankshaft & camshaft sensors nothing worked, no fuses blown, no PTC codes I even get live data on the scanner. I also checked all the voltage pin outs form the pcm to sensors and grounds. When that all checked out ok I went to the distributor and checked timing with #1 at TDC, then did a compression test all checked out good. Then I pulled the distributor and checked for play and gear for damage, it was fine, had some wear. The only thing I can think of is the pcm so I replaced that. I know what you’re thinking CKS or bad wiring connections nope all look real good…. I have replaced three of them thinking I got a bad one…
I was told there has to be a bad ground or broken wire some where but I can't find one, hopefully you can steer me in the right direction.
Wednesday, February 15th, 2012 AT 10:44 PM