LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Car is surging at low rpms

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Old 12-03-2008, 03:16 AM
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Default Car is surging at low rpms

Ok i recently changed the cap and rotor on my car and it is running 100% better than it was but the car tends to surge at low rpms like if im just cruising at a steady speed. I don't notice it when im accelerating really. And I don't notice it much at higher speeds. It was doing this before my opti went to **** so idk. . any ideas?
Old 12-03-2008, 03:46 AM
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Are you sure it's not your torque converter locking and unlocking? Mine did this a lot before all the mods. It usually happened between 35 and 45 mph under light throttle.
Old 12-03-2008, 03:50 AM
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i would be willing to bet you have a burned plug wire. its a pretty common problem. one of mine burned up and it did the same thing. it surged really bad at low speeds and went away some what at highway speeds.
Old 12-03-2008, 04:14 AM
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Originally Posted by Slowmaro95Z28
Are you sure it's not your torque converter locking and unlocking? Mine did this a lot before all the mods. It usually happened between 35 and 45 mph under light throttle.
Well it hasn't done it at all until recently so im not sure about the converter locking up
Old 12-03-2008, 04:17 AM
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Originally Posted by 3rdgen92maro
i would be willing to bet you have a burned plug wire. its a pretty common problem. one of mine burned up and it did the same thing. it surged really bad at low speeds and went away some what at highway speeds.
Well that sounds like what mine is doing, I was wanting to change the wires anyway so I'll prolly go ahead and do that. Thanks for the tips, anyone else have other opinions?



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