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Re: Flashing CEL .... Rough idle ....
The flashing CEL indicates the misfires are so bad you are damaging the cat converter. Get it fixed before you wind up forking out $500+ for a new one.
http://www.obd-codes.com/p0300
http://www.obd-codes.com/p0203
http://www.obd-codes.com/p0303
http://www.obd-codes.com/p0420
203, 303, 302 are causing the 300 and 420. For starters check for loose spark plug/fuel injector connections at cylinders #2&3. If the plugs and wires have been in it for several years consider replacing them. #2 is at front left and #3 is middle back side.
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07 Fusion / 06 RAV4 / 06 Accord / 96 Gr Caravan
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