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Old 01-22-2012, 12:16 PM   #1
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blackcatsl2 is on a distinguished road
Join Date: Nov 2010
Location: Charlotte NC
Posts: 11

1997 SL2
Default Random Misfire P0300

I have recently had both coil packs;ignition module;sparks plugs&wires replaced. My 97 SL2 always seem to misfire going down a hill or low grade. If I let go the gas pedal and let the the car coast down the hill or grade the check engine light will not flash. These misfires only happen at highway speeds after the Check Engine sets it only seem to turn itself off at the next start up cycle during low speed city driving. I'm puzzled please help me with this ignoring P0300 error.


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