Can Someone Tell Me Whats Up?
05-21-2003, 08:52 PM
#1
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Thread Starter
Join Date: Jan 2003
Posts: 75
First off i have an 86 gxl with a new street ported motor with less than 1500 miles on it. i have never been able to tweek the idle to the right mixture or idle speed. i have tried playing with the idle adjust screws and idel speed screw..but that is just a side point with my problem. It starts fine and does its usual idle, but when i rev it it goes to about 2800 to 3200 and just pretty much cuts out? the tach needle falls down immediately and i leave off and it goes back to idle, it kind of feels like the engine just turns off. but it doesn't lose electronic power or stall. at first it only happened a little.. once in a while.. now its not driveable. its running really really rich because of the bad idle, so innitially i thought since i didnt replace the old o2 sensor when i put in the new engine it may be that, and that maybe have burnt out my spark plugs because it was overloaded with fuel. so i got new plugs, plug wires, and o2 sensor. when i put the sensor in i noticed the the o2 sensor wire was broken meaning no o2 sensor was being sent to the the engine. Is that what it could be? i tried splicing the wire back with the other one but its almost impossible to do because the gauge is small and i have no wire play. But could that be what that problem is? or could it be something else? i just need ideas? Thanks
05-22-2003, 04:41 PM
#6
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Join Date: Jan 2003
Posts: 75
i dont think it's the ignition, it could be but its not just the tach that falls the whole motor pretty much stops for a second.. it's hard to describe. it almost feels like what happens when you are driving in frist gear at like 3500 and feather the gas a couple times and the car starts rocking back and forth.. it feels like the fuel cuts out.. or the air cuts out? Could it have to do with one of the three adjustable screws? anything will helps thanks!
05-22-2003, 05:35 PM
#9
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Join Date: May 2002
Location: California
Posts: 22,465
Originally Posted by JspecRX7' date='May 22 2003, 01:41 PM
i dont think it's the ignition, it could be but its not just the tach that falls the whole motor pretty much stops for a second.. it's hard to describe. it almost feels like what happens when you are driving in frist gear at like 3500 and feather the gas a couple times and the car starts rocking back and forth.. it feels like the fuel cuts out.. or the air cuts out? Could it have to do with one of the three adjustable screws? anything will helps thanks!
mike