SES codes jumping
#1
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SES codes jumping
Hello all, 2000 Bonneville been running rough at high acceleration blinking SES. When code pulled it was P0306 misfire cylinder 6. Before working on it I pulled the code and now jump to P0300 random misfire. So I went ahead and changed the coils and ICM and took the car for a run at high speed and it did the same thing code was still P0300 random misfire, Yesterday I put new Spark plugs and took it for a run and again it misfired but now it read P0305 misfire cylinder 5… I was reading several forums here and they mentioned checking the fuel injectors however, what can be the cause of my SES codes jumping from P0306 to P0300 then now to P0305.Can there be something in my fuel rail jumping around?
Last edited by XEN; 03-28-2010 at 10:25 AM.
#6
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I put AC Delco platium spark plugs 41101 no screw tips..The ngk that were in there had the the screw tips. I did check to see if all my wires were tight after pulling the codes every wire was intact tight. I was thinking of messing with the fuel injectors but should i look at something else first since the codes are changing on me.
Last edited by XEN; 03-28-2010 at 10:24 AM.
#10
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Do platnium plugs melt rite away since they are new or does it happen with time ? I guess i'll try changing the plugs first to see what happens.
Thanks i'll keep u posted.
Thanks i'll keep u posted.