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Based on the initial post... Got Spark? 200 1989

"I noticed that if I keep trying to crank it I eventually smell gas."

If you really do smell gas (pull a couple of plugs and see if they're wet, to be sure), the only thing I know of that prevents ignition but allows Fuel operation is the Power Stage "coil trigger" on the inner fender, behind the left headlight.

The FI ECU is dead without timing pulses from the Ignition CU. So if there is fuel at the plugs, the EZK CU must be getting its pulses from the RPM sender and transferring them to the LH CU. And the 25 amp fuse must be good too — because it powers both the Fuel and Ignition CUs.

But if EZK-controlled Power Stage (or its inputs) fail, the Coil is dead but neither EZK or LH ECUs are aware of it. The EZK is happy (RPM sensor pulses) and sends its pulses to control the LH 2.4 FI system.

Result — no start and no spark. But wet plugs.
--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.






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New start, won't start [200][1989]
posted by  Revolvor  on Thu Feb 2 11:33 CST 2006 >


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