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Old 09-08-2010, 12:15 AM   #16
Steve30
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my car has the same problem... cylinder 6 misfire. It's getting fuel and the injector resistance seems to be ok. I'm guessing there's a loose wire in the injector harness somewhere. did you swap the cylinder 4 injector with another one and see if it moves to that cylinder?
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Old 09-08-2010, 10:48 AM   #17
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my car has the same problem... cylinder 6 misfire. It's getting fuel and the injector resistance seems to be ok. I'm guessing there's a loose wire in the injector harness somewhere. did you swap the cylinder 4 injector with another one and see if it moves to that cylinder?
your problem sounds like a coil gone bad. From what I've read, a bad coil can kill your DME too.
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Old 09-08-2010, 10:49 AM   #18
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^ just found out what was causing my misfire. The plug for injector #6 on the injector harness was missing one of the little metal connectors so it wasn't completing the circuit.
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Old 09-08-2010, 10:52 AM   #19
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your problem sounds like a coil gone bad. From what I've read, a bad coil can kill your DME too.
That's not really a problem, I repair DME's if the coil killed them.
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Old 09-08-2010, 10:57 AM   #20
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A coil fires all 6 cylinders, so why would it only be failing on cylinder 4? And no, the DME wouldn't cause one cylinder to misfire.

Is the spark plug from 4 all covered in gas or tan / grey and dry? That way you'll know whether its getting gas or not. Did you try seafoam yet? Otherwise, you may have an electrical fault going to that injector. Is the plug for the injector securely fastened and clean?
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Old 09-08-2010, 10:57 AM   #21
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^ just found out what was causing my misfire. The plug for injector #6 on the injector harness was missing one of the little metal connectors so it wasn't completing the circuit.
so it wasn't getting fuel then? I'm confused now
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Old 09-08-2010, 10:59 AM   #22
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Nope, the injector wasn't firing.

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so it wasn't getting fuel then? I'm confused now
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Old 09-09-2010, 11:03 PM   #23
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the #4 injector is the only one not firing(did the old screwdriver trick), fuel pressure is a steady 40psi, and going to do a leakdown test tomorrow night. Crossing my fingers.
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Old 09-10-2010, 07:02 PM   #24
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http://www.youtube.com/watch?v=6c4Zt2NAztw heres a link to a short video i took of how the car runs
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Old 09-14-2010, 10:26 PM   #25
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I didn't see it mentioned but you have replaced the rotor and distributor cap, no? Otherwise, do that no matter how good the current ones look.

Might be worth checking the valve clearance. I know mine was ticking about that badly... about the same time a rocker arm broke. Alternatively, switching two injectors around to see if the problem moves cylinders might be worth trying.
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