My van, Red Stripe, is running on 2 cylinders after a fuel system overhaul. She sat for 17 years before I bought her, and fouled the fuel pump i installed after only 6,000 miles. Actually, the pump was still running, but failing--or who knows, maybe the sock was just clogged. Anyway, a week after she was running better than ever before, she would run no more. At one point, the pump stopped running altogether and when I started probing the Circuit Opening Relay (COR) with my multi-meter, it started working intermittently, and I found some corrosion on the terminals (probably from rat piss, but that's another long, ugly story). I cleaned 'em up and no more problems with COR. Pump would kick on, then strain, and I was only getting 14psi at fuel rail.


I decided to tear things apart and had injectors tested and cleaned (passed with flying colors), replaced Fuel Pressure Regulator (FPR) and Fuel Pulse Damper (FPD). Of course I had already replaced fuel filter, so when I was still getting 14psi, I figured it was the pump. I dropped the tank and took it to my radiator shop and had it cleaned and lined with some high-tech rubber coating developed for the aircraft industry (this is Everett, WA after all). It may just be Flex Seal ("completely woorderproof!") with a fancy price tag… Anyway, I put the tank back on with a new fuel pump. Everything else was cleaned and reassembled and a new Throttle Position Sensor (TPS) installed. The list of new parts is much, much bigger, but I'll try not to bore everybody too much… I did NOT however replace slightly damaged injector connectors. They all seemed good enough and I was tired. But I was sure that if there was a problem, it would be with #3 and/or #4...


Anyway, 38psi at the rail now, but running on 2 cylinders. No change when I remove spark plug wires on #3 and/or #4 (of course). All have spark and good compression. checked injector circuits at Electronic Control Unit (ECU) and Solonoid Resistor. Everything is within specs. Stabbed wires to injectors with volt meter and they are energized. Swapped out ECU from my other van--no change.


Anything else I'm missing before I tear it all apart AGAIN to get at injectors 3 &4?


Oh, and now there's a spontaneous leak of brake fluid (I assume) on the front driver's side floor. Haven't investigated that yet… Fortunately, I had already pulled out the carpet.


Any advice would be greatly appreciated! I think I've scratched my head right down to the skull…