Engine run on, Don't know what else to try |
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Engine run on, Don't know what else to try |
oakdalecurtis |
Mar 5 2017, 05:47 AM
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#1
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Oakdalecurtis Group: Members Posts: 1,329 Joined: 5-June 15 From: Oakdale, Ca Member No.: 18,802 Region Association: Central California |
76 2.0, 120k miles, all stock engine parts except for Crane Ignition. Engine runs on after shutdown for 3 to 5 seconds. All engine parts working, thermostat, aux air regulator, no vacuum leaks, motor runs beautifully and pulls hard, engine idles after warmup at about 600 rpm. I tried adding a diode to the lead from the alternator to the generator light, that made no difference to stopping the run on after shutdown. Any other ideas to suggest that might fix it? (besides popping the clutch to stop the engine)
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Dave_Darling |
Mar 5 2017, 02:19 PM
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#2
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Injected, right? In theory, all fuel should cut off instantly when the key is turned off. That means no run-on from ignition or hot-spots. You need fuel for run-on.
So, either you have a lot of fuel loaded up in the intake, or your FI is continuing to add fuel. I would suspect the ignition switch. Or maybe something else is feeding back into the ignition circuit? You'll want to isolate the problem. See if unplugging the trigger points or the four-pin plug at the relay board kills the engine. If so, you've got something continuing to power the fuel injection. --DD |
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