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Expert
172 Answers
- Posted on Nov 14, 2009
Re: Check engine light on. P0325, P0420 2000 Subaru
P0325 Knock Sensor Circuit Malfunction
P0420 Catalyst System Efficiency Below Threshold
I would change the knock sensor first and the other may clear up .....
p0420 check engine code
check engine p0420 code
when it cuts out the check engine light flashes
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