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New plugs and wires and now bad idle!


5speedz34
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Ok, so I did plugs and wires on my friends '93 Cutty 3.1. We put in rapidfires and bosch wires . To make sure I had the right wires I measured the lengths of the new ones against the old ones. Ne ways now it idles at like 500-600, in park its ok, but in gear it idles at like 400 and its rough alot, enough to make the dash shake, it doesn't missfire just has a rough idle. We also put on new FFP dogbones so idk if that has ne thing to do with it.

 

Thanx in advance

 

-Tony

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Well doesn't that idle sound kinda low? I mean it's way worse in gear, and I'm sure the lower mounts need to be replaced since the car has like 160k on it.

 

-Tony

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Guest Anonymous

Stock tach's are rarely ever real accurate. It could be reading 100-200 low. And when you put it in gear the rpm's will drop.

 

Did you have the battery unhooked? Might need an idle re-learn.

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Is it running rich or lean? Got the plugs gapped correctly?

 

Yeah the plugs are gapped correctly, I dont think its running rich or lean.

 

Did you have the battery unhooked? Might need an idle re-learn.

 

Yeah, we unhooked the battery and I thought that could be it but the fact, that its ran 3 days w.o a relearn I'm thinking it should've already learned the idle.

 

-Tony

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