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97 Legacy EJ22 losing 2 cylinders when engine warms up


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howdy folks,

 

Had a frustrating problem with Subi 2 this past week and after replacing likely culprits I still have a problem of losing 2 cylinders after the engine warms up.

 

While driving the car I suddenly lost 2 cylinders and the Check Engine Light was blinking.

 

Replaced the coil, wires, plugs, cleared a clogged cat, and replaced a fuel injector.

 

It runs great until it warms up and then I lose the 1 & 2 cyliinders.

 

Subi 2 has 290k miles on her and ran like a bear up until this happened...

 

Any ideas or thoughts?

Mal

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I suggest you check the crank sensor signals and see if they are ok when the trouble happens. If that is ok then I would look into trying to find a spare ECU and see if replacing that helps. I assume the wiring to the ignition module has been checked for a problem already.

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  • 2 weeks later...

Problem solved!

 

Turns out it was a flat plastic coupling/relay looking thing my mechanic called an 'igniter'

 

Apparently all the good stuff they put on the roads in the winter here in the northeast corroded it and it was causing the misfire.

 

Subi 2 is running strong again.

 

291k miles now.

 

Mal

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