Rough idle and popping
10-29-2006, 12:57 AM
#1
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Rough idle and popping ok so tonight my car started acting funny and its kinda worrying me. When i sit at idle after a couple of seconds the idle gets very rough and the car starts shaking but the rpms stay constant, and i get like lil pops coming out of my exhaust randomly and almost every time the rpms drop after a slight blip of the throttle.
Now i installed longtubes a few weeks ago and still have not got it tuned so that may be part of the problem, but my question is now that the headers are broken in is it possible that these are symptoms of bad o2 sensors? If so ive been anticipating them going out because of the ceramic coating but i dont know what happens when they go bad everyone says the car drives liek crap but is what im describing sound about right?
Now i installed longtubes a few weeks ago and still have not got it tuned so that may be part of the problem, but my question is now that the headers are broken in is it possible that these are symptoms of bad o2 sensors? If so ive been anticipating them going out because of the ceramic coating but i dont know what happens when they go bad everyone says the car drives liek crap but is what im describing sound about right?
10-29-2006, 01:30 AM
#2
Originally Posted by p8ntmunky
ok so tonight my car started acting funny and its kinda worrying me. When i sit at idle after a couple of seconds the idle gets very rough and the car starts shaking but the rpms stay constant, and i get like lil pops coming out of my exhaust randomly and almost every time the rpms drop after a slight blip of the throttle.
Now i installed longtubes a few weeks ago and still have not got it tuned so that may be part of the problem, but my question is now that the headers are broken in is it possible that these are symptoms of bad o2 sensors? If so ive been anticipating them going out because of the ceramic coating but i dont know what happens when they go bad everyone says the car drives liek crap but is what im describing sound about right?
Now i installed longtubes a few weeks ago and still have not got it tuned so that may be part of the problem, but my question is now that the headers are broken in is it possible that these are symptoms of bad o2 sensors? If so ive been anticipating them going out because of the ceramic coating but i dont know what happens when they go bad everyone says the car drives liek crap but is what im describing sound about right?
10-29-2006, 01:35 AM
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yea i still have them but its not the same pop as when the air is activated when the car is cold, dont they only run for a few minutes during cold starts? not the whole time
if that is it why would it come out of no where almost a month later
if that is it why would it come out of no where almost a month later
10-29-2006, 01:45 AM
#5
that's true. Does your car have an EGR that bolts to the pass side head? If it does it could be a vacume leak on the pipe that goes in to the intake right behind the throttle body. I have heard and seen one that had that oring go bad and it would idle rough and kind pop out the exhaust. You can take sone spray carb cleaner and spray around it to check for leaks. Sound like you have a vacume leak for sure.
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10-29-2006, 01:57 AM
#10
Originally Posted by p8ntmunky
no i did not and that is def a good possibility that they are fouled also would me running rich also help burn out the plugs?
10-29-2006, 01:59 AM
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ughhh its gettin cold i dont wanna do this lol i guess i got a project tomorrow...any suggested plugs? ive heard some good things about ngk tr55s
10-29-2006, 05:51 AM
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Originally Posted by p8ntmunky
ughhh its gettin cold i dont wanna do this lol i guess i got a project tomorrow...any suggested plugs? ive heard some good things about ngk tr55s
10-29-2006, 08:27 AM
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Did you leave the plugs in when you put the headers in you might have a cracked plug. His car is a 2001 so he doesnt have EGR just AIR. Do you have a SES light????? IF the 02 where bad the the SES light would be on.
10-29-2006, 08:34 AM
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yea i do have a ses but i also took off my rear o2s so i may have more readings then i think i guess ill get it scanned today.
what do u mean by arching?
Originally Posted by like the view?
also check your spark plugs and wires, make sure no arching is occuring. I thought i had a vacuum leak and it was my #1 cylinder plug arching.
