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Old 05-06-2009, 06:34 PM   #1
Scooby Newbie
Member#: 76648
Join Date: Dec 2004
Chapter/Region: NWIC
Location: Beaverton, OR
2003 WRX
326 awhp/303 tq

Default missing question

My buddy has a 1999 Subaru Legacy with the 2.5 and it occasionally misses mostly under load and there is no cels. He has replaced the plugs, wires, ignition coil, o2 sensor, fuel filter and is still having the issue. Anyone got any ideas? Fuel injector maybe?
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Old 05-06-2009, 08:01 PM   #2
Scooby Specialist
Member#: 80465
Join Date: Jan 2005
Chapter/Region: RMIC
Location: Bailey, CO
2001 2.5RS
Black Diamond Pearl


It wouldn't hurt to put a can of injector cleaner in there.
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Old 05-07-2009, 12:53 AM   #3
Scooby Newbie
Member#: 209963
Join Date: Apr 2009

Gotta agree, there is a mysterious tendency to miss and knock in the 94-99 NA cars. Plugs and wires seem to help the problem somewhat. My questions for NASIOC are:

Are there any differences in the ignition hardware between the NA and TC engines?

Are the plugs and gaps significantly different?

Has anyone installed MSD2 or other ignition systems? Did it solve the missing issue? Did it help with detting?

I've seen it a few times. High compression seems like it might be a factor.
WcW is offline   Reply With Quote

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