98 Subaru Legacy GT, engine runs rough when hot

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superdav - 02 Sep 2008 06:24 GMT

My 98 Legacy AWD wants to die after it’s been running for about 30
minutes. It runs fine when it’s first started but then out of the blue
it just starts chugging. I replaced the plugs and wires, could it be
the catalytic converter?

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Carl 1 Lucky Texan - 02 Sep 2008 22:28 GMT

> My 98 Legacy AWD wants to die after it’s been running for about 30
> minutes. It runs fine when it’s first started but then out of the blue
> it just starts chugging. I replaced the plugs and wires, could it be
> the catalytic converter?

I suppose a LOT of things 'could' be the problem in a '98 .

You don't mention any check engine light/OBDII codes . If the light is
not on, I suppose the Engine Temp. Sensor could be bad. Basically
keeping the car in 'choke' mode even after it has warmed up. That may
not throw a code/light the CEL.

Carl

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