C6 Idle issues
Thread Starter
2nd Gear
Joined: Sep 2004
Posts: 2
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From: St. Catharines ONTARIO
C6 Idle issues
My 2008 Z51 Convertible is suddenly experiencing idle issues. When cold, everything is OK. After it is warm, my idle sits at 2,400 when I come to a stop, eventually dropping to 1,200 after about 20 seconds and then drops to 650 after another 20-30 seconds. When shifting, the revs increase about 200-500 rpm after I depress the clutch and get off the gas, thus making it impossible to be smooth in shifting. This also plays havoc with fuel mileage. The car is stock with about 12,000 miles (18,000 km). It also has the NPP exhaust system which has been deactivated. These issues have just recently arisen. Last year, it was perfect.
The dealer has had it in twice; no codes shown and it usually acts normal when at the dealers.
Any ideas or suggestions? HELP!
The dealer has had it in twice; no codes shown and it usually acts normal when at the dealers.
Any ideas or suggestions? HELP!
