LT5 Ignition Systems Question??? - ZR-1 Net Registry Forums

POWERBRAKEBOB · 05-25-2014

I set a plug out on the engine with wire and cranked. NO spark. NO flash of the noid light. Sec light flashes, then goes out by turning key to ON. Key on, pumps run two seconds. Cleared door alarm. I did find a fuse burned out under the right dash. It looks to be marked "conx" or "cone" . I replaced ALL fuses on the right side of dash. VATS by passed. It was running when I parked it one night, next day, nothing. I bought a used IM from Brett. Replaced CPS, which did test "open". Tested the harness from CPS to IM for shorts. None. I'm sure it's something simple, but I can't find it, and my FSM's are buried in storage. Frustrating, and I need the car. It does have 268,000 miles on it, which I am sure is a record. No one has ideas on when things fail at what mileage.

05-25-2014	#34
POWERBRAKEBOB Join Date: Apr 2010 Location: HUNTINGTON BEACH, CALIF. Posts: 38	Re: LT5 Ignition Systems Question??? I set a plug out on the engine with wire and cranked. NO spark. NO flash of the noid light. Sec light flashes, then goes out by turning key to ON. Key on, pumps run two seconds. Cleared door alarm. I did find a fuse burned out under the right dash. It looks to be marked "conx" or "cone" . I replaced ALL fuses on the right side of dash. VATS by passed. It was running when I parked it one night, next day, nothing. I bought a used IM from Brett. Replaced CPS, which did test "open". Tested the harness from CPS to IM for shorts. None. I'm sure it's something simple, but I can't find it, and my FSM's are buried in storage. Frustrating, and I need the car. It does have 268,000 miles on it, which I am sure is a record. No one has ideas on when things fail at what mileage.