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  1. #1 Rough idle 
    SE Level Member GTP2188's Avatar
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    The car is a 97. The problem: When I start the car it idles kinda rough. I would say the RPMs fluctuate around 600-900. It does not do this all the time. The LTFT stays at +16 when this occurs. STFT fluctuates from +16-20. During driving I have no problems. The STFT and LTFT lock in at 0. When driving and I let off the throttle the LTFT goes straight to +16 as well. I don'y know if this is normal though. I have checked the vacuum lines over. I hear a light sucking noise around the front underside of the SC nose. Checked that line it's free of cracks. Then I spoke with J. Vriezema he said to unplug the MAF to see if it idled normal. Well it did. So I'm not necessarily sure if that the problem though since it does not do it all the time. Also no codes are going off. I checked for exhaust leaks and do not hear any. So this is where y'all come in. Ideas?
    New wires(ac delco)
    Recent plug change
    Last edited by GTP2188; 07-15-2012 at 12:04 AM.
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