New to me 1991 318is, brought in from out of state needing a CA smog check. Replaced leaking rubber fuel filler hose, put in new spark plugs and an oil change then took it out for a spirited drive to give it a good warm up on the way to the smog check. Heard a pop up front at 70+ mph, lights came on, engine died, coasted to the side and got towed home. Have had a crank/no start ever since.
-- Replaced noisy fuel pump and fuel pump relay. Pump runs when jumped at the relay.
-- Replaced fuel filter.
-- Replaced engine control relay because I had a new spare.
-- Cranks just fine.
-- Have spark when cranking, but plugs dry.
-- No codes (just 1444) after stomp test.
-- 12v at the firewall power connection and Check Engine light works, so ruled out the fusible link.
-- New Bosch CPS installed (not the BMW part) with a bracket that's 70 degrees off the location of the original, and not as deep (the one I removed had a smaller protrusion that extended another 1-2mm, although this is supposedly the compatible part number according to 3 different websites)
-- Old CPS resistance of ~1200 ohms; new CPS resistance at 540 (correct according to Bentley)
-- Wire connections all appear to be tight
What am I forgetting? I thought I was getting down to the CPS as culprit, and it does seem like the old one was faulty, but still not starting.
-- Replaced noisy fuel pump and fuel pump relay. Pump runs when jumped at the relay.
-- Replaced fuel filter.
-- Replaced engine control relay because I had a new spare.
-- Cranks just fine.
-- Have spark when cranking, but plugs dry.
-- No codes (just 1444) after stomp test.
-- 12v at the firewall power connection and Check Engine light works, so ruled out the fusible link.
-- New Bosch CPS installed (not the BMW part) with a bracket that's 70 degrees off the location of the original, and not as deep (the one I removed had a smaller protrusion that extended another 1-2mm, although this is supposedly the compatible part number according to 3 different websites)
-- Old CPS resistance of ~1200 ohms; new CPS resistance at 540 (correct according to Bentley)
-- Wire connections all appear to be tight
What am I forgetting? I thought I was getting down to the CPS as culprit, and it does seem like the old one was faulty, but still not starting.
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