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Old Jun 5, 2004 | 10:32 AM
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ajd0002
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Default running rough

Just completed installing rebuilt injectors, new vacuum lines, intake gaskets,plugs, and other small misc items. Know 4 of the injectors are OK (done by Cruzin) but the other 4 were not tested before installing....it's a long story. Car started up OK, but there is a definite "miss". As the revs come up, it's like a ba-ba-ba-ba, almost like 1 cylinder is not firing. Idle is also a bit rough, but not terrible. I've double checked all vacuum connections and spark plug connections. It doesn't seem to be the smae type of miss I've experienced on other cars with electrical problem. The most obvious culprit is a bum injector; is there a way to find this out, or to isolate the cylinder that's causing the problem?
Tks
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Old Jun 5, 2004 | 11:22 AM
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Have you tried unplugging the injectors one by one and try to find the faulty one?
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Old Jun 5, 2004 | 12:45 PM
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Originally posted by Giovanni
Have you tried unplugging the injectors one by one and try to find the faulty one?
Also, remove plug wires in a similar fashion to isolate a cyl. - which will indicate either injector, plug or wire. Best done with engine off, as the boots are - well, you know ...
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Old Jun 5, 2004 | 01:43 PM
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It is easy enough to pull the plug wires at the distributor, BUT as mentioned earlier, do it with the engine off or use an insulated plug wire remover. Have you checked the distributor cap for signs of carbon tracking?

Dennis
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Old Jun 5, 2004 | 02:38 PM
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Thanks guys.
I thought of pulling plug wires/injector connections. Please correct me if my logic is wrong, but I'm thinking that if I pull either plug or injector and the engine runs worse, then that cyl is OK. If uplugging either/or makes no difference, then I've found the problem cylinder?

Gawd, I hpe it's not some combination of both!
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Old Jun 5, 2004 | 06:48 PM
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Your logic is correct. It would also help to have a tachometer installed so you could also get a visual.

Dennis
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