C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

90 Corvette Won't Start

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Old Jun 24, 2023 | 03:06 PM
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Default 90 Corvette Won't Start

I've had four occasions, in six months, when it just quit while driving along at about 40 mph. If it sits for 2-3 hours it will fire up and run perfectly until the next time. I was thinking the coil might be the culprit. I installed a new coil, with the battery disconnected. It turned over normally but would not fire. Thinking it might be a defective new coil, I put the old one back on. Same results, will not start. ??
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Old Jun 24, 2023 | 03:54 PM
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Check fuel pressure
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Old Jun 24, 2023 | 04:47 PM
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When it won't run, what's missing? SPARK OR FUEL?

Or, keep guessing?
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Old Jun 25, 2023 | 09:11 AM
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Will do. I have recently installed a Holley retrofit in-tank fuel pump. It had been running fine before the replacing the coil, but anything is possible. The car has run 32,000 miles with the old in-line frame mounted fuel pump, but I couldn't stand the whine.
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Old Jun 25, 2023 | 09:14 AM
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You're right on, I made the mistake of assuming it is spark as the change was ignition related. Will update after checking. Thanks
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Old Jun 25, 2023 | 04:29 PM
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Spark.
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