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Engine Light ON- Multible error codes, where to start??


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Picked up another Legacy wagon LS, 91, with only 76 kmiles. That little old lady story. Anyway, the CEL is on and a local shop said the codes were for the following: Knock Sensor, Purge Soleniod, Temp Sensor-coolant.

I plan to dig into it this weekend and am looking for some direction.:-\

I've got a manual for the EGI System, but most of the procedures involve the Select Monitor, which is on my list of tools to steal:brow:

I think it would be unlikely that all of these things have failed at the same time. I drove the car home and it seemed to have full power, it also just passed CA smog inspection.

Any feed back??:burnout:

TIA

feathersjr:headbang:

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I cleared the ECU, started it up and got error code 21, coolant temp sensor. Replaced that, cleared memory and no errors since then. Total cost of $27 to fix:banana:

Thanks for the help,

feathersjr:headbang:

 

Glad it was an easy fix. The car will probably run a lot better now too.

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