1999 DF50

by GaryK
(Mercer PA)

Engine is missing. Idles reasonably, but once in gear with any throttle seems like at least once cylinder dies. Plugs are clean, removed, set gap, replaced with same symptoms. Ignition coils measure identical primary as well as secondary voltages.

Low pressure filter is not restricted, high pressure filter has no restriction, injectors look clean. Absolutely no crap in any fuel anywhere. Run only ethanol free fuel. Fuel pump run at key on.

Fuel pressure test? Suggested methods?

New ignition coils?

Thanks

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