Mechanics

ROUGH IDLE POSSIBLE RUNNING LEAN

1998 Chevrolet Camaro • 97 miles

98 Camaro Z-28, LS1 motor, 97k, auto. Vehicle starts up fine, has rough idle, pulled codes, #174 Bank 2 lean, # 300 Generic, multiple cylinder misfire, cars runs good, excellent pickup, but at an idle its very rough kinda like it wants to cut off but doesnt.
ANY ideas, would help thanks.
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Pearlhickory
September 25, 2012.



First thing I would check for is a vacuum leak from the symptoms sounds like you have one.

Saturntech9
Sep 25, 2012.
I was looking around the engine, bay, I CAN HEAR ONE, cannot locate, it, ive shot cab cleaner in area and stuck my head as much as possible put a pipe to listen thru it and cannot find, but I can can hear hissing.

Tiny
Pearlhickory
Sep 25, 2012.
Spray carb spray at idle and listen for the engine rpms to go up down or the engine to. Stumble or die.

Saturntech9
Sep 26, 2012.
I already did, I can hear a hissing from backside of motor cannot locate it. Looking for the pcv valve now.

Tiny
Pearlhickory
Sep 26, 2012.
Did you find the pcv yet?

Saturntech9
Sep 26, 2012.