Elusive Misfire in #7
03-08-2010, 07:53 AM
#1
Staging Lane
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Elusive Misfire in #7 Ok I have:
New Spark plug, Iridium
New Wire
New Coil
Seafoamed' the fuel to attmpt to clean injectors
STILL misfiring, still shaking on idle and 1200ish rpm
What is next to fix this damn thing? oh and to verify..
Transmission
8---7
6---5
4---3
2---1
Front
Correct?
and for the off chance, can old plugs in 2 4 6 8 cause a misfire in 7?
New Spark plug, Iridium
New Wire
New Coil
Seafoamed' the fuel to attmpt to clean injectors
STILL misfiring, still shaking on idle and 1200ish rpm
What is next to fix this damn thing? oh and to verify..
Transmission
8---7
6---5
4---3
2---1
Front
Correct?
and for the off chance, can old plugs in 2 4 6 8 cause a misfire in 7?
03-08-2010, 09:20 AM
#3
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You have the correct plug locations in your graph.
Why do you have a 1200rpm idle with a stock motor? Or do you mean that it shakes from idle to 1200rpm?
For some reason I always find that my #7 plug is more carboned up than the rest. I have no idea why. But I don't have any sort of misfire or driveability issues like yours.
I agree with Jimmyblue, that injector could be dead/dying.
Why do you have a 1200rpm idle with a stock motor? Or do you mean that it shakes from idle to 1200rpm?
For some reason I always find that my #7 plug is more carboned up than the rest. I have no idea why. But I don't have any sort of misfire or driveability issues like yours.
I agree with Jimmyblue, that injector could be dead/dying.
03-09-2010, 06:13 PM
#4
My Z was doing the same thing. I did plugs/wires and fuel filter/injector cleaner. Nothing worked. I then got a reman injector for my #4 cyl for 50 bucks and that fixed the problem.
