Rough idle...
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Joined: Dec 2003
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From: CT
Rough idle...
I posted at another site, but was hoping to get more feedback here.
I had a polished plenum installed about a month ago. Professional install and the plenum was brand new. I have driven the car about 4 times since then (CT driver here) and have noticed that my idle is rough. It stays at 750rpm for a bit then dips down. When I get out of the car and listen... it sounds like it is sputtering a bit. Car shakes alittle.
I don't feel any loss of power at all while driving it. Appears to be only when stationary. 5500 miles on the car... babied. No performance mods!
I made an appt. at the dealer for this Friday. I am nervous!
Whataya guys think?
Vacuum line?
Bad Spark plug?
Bad fill up of gas!
I had a polished plenum installed about a month ago. Professional install and the plenum was brand new. I have driven the car about 4 times since then (CT driver here) and have noticed that my idle is rough. It stays at 750rpm for a bit then dips down. When I get out of the car and listen... it sounds like it is sputtering a bit. Car shakes alittle.
I don't feel any loss of power at all while driving it. Appears to be only when stationary. 5500 miles on the car... babied. No performance mods!
I made an appt. at the dealer for this Friday. I am nervous!
Whataya guys think?
Vacuum line?
Bad Spark plug?
Bad fill up of gas!
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Joined: Nov 2003
Posts: 25
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From: Edmonton, Alberta
Bad gas could cause the problem, as could a vacuum leak.
I have a similar problem with rough idle then dropping off and misfire. It is showing up as a lean condition on the right side O2 sensor. As to the cause......that is still to be determined.
I have a similar problem with rough idle then dropping off and misfire. It is showing up as a lean condition on the right side O2 sensor. As to the cause......that is still to be determined.
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Joined: Nov 2003
Posts: 56
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From: Pembroke Pines, FL
Please keep me posted on this, I am having the same exact problem, and I have the following mods on my Z: Crawford Plenum, Japtrix Y-Pipe & Mid-Pipe, UR Crank Pulley, drop-in K&N.
I am also concerned as to what could be causing this, one Forum member who was having the same problem told me that it was his MAF sensor. I was also wondering if maybe a fouled spark plug could be causing it. Any feedback on this matter would be greatly appreciated.
I am also concerned as to what could be causing this, one Forum member who was having the same problem told me that it was his MAF sensor. I was also wondering if maybe a fouled spark plug could be causing it. Any feedback on this matter would be greatly appreciated.
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Joined: Dec 2003
Posts: 19
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From: CT
My idle was more than rough and it didn't sound very good...even from the outside. Almost like it wanted to stall.
I got a call from the dealer today and they said that there was a leak in the intake gasket!! They did several computer tests.. etc.
My dealer isn't mod friendly (even cosmetically) and I did not get this installed with them. We'll see if the dealership that ordered/installed this for me can contact my delaership to get this taken care of. Otherwise...trip to NY is in the works.
Funny thing is... this confirms why I should leave the car the way it was from the damn factory and just enjoy driving it! So annoying.
Hope that helps guys.
I got a call from the dealer today and they said that there was a leak in the intake gasket!! They did several computer tests.. etc.
My dealer isn't mod friendly (even cosmetically) and I did not get this installed with them. We'll see if the dealership that ordered/installed this for me can contact my delaership to get this taken care of. Otherwise...trip to NY is in the works.
Funny thing is... this confirms why I should leave the car the way it was from the damn factory and just enjoy driving it! So annoying.
Hope that helps guys.
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