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16 Posts
Discussion Starter #1
When I let my car sit and idle, and stand near it I often think it is a built v8 with a nasty cam, except for the exhaust note, in other words it has a lumpy idle and runs GREAT as soon as you give it any throttle. It idles right around 900 rpm.
 

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Adam
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1,688 Posts
Did you buy it used?
 

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FUBARCUS
2003 ZX3 2016 FoST
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7,785 Posts
try an ecu reset that fixed my lumpy idle. Just disconnect the battery for 10-15 mins the reconnect it and see if that fixes it. You could also clean your maf as well.
 

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410 Posts
Do you have an aftermarket TB? If so it could be sticking due to colder temps. My 65mm TB needs adjusted every summer/winter.
 

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Discussion Starter #6
No, nothing aftermarket, just exhaust and my intake snorkel thing is gone and the side box thing is broken off on the intake filter housing.
 
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