High idle and jumpy throttle
Thread Starter
2nd Gear
Joined: Sep 2014
Posts: 2
Likes: 0
High idle and jumpy throttle
Ok, so hoping the great minds in here might be able to help. Have a 2007 base. I was getting codes for the throttle sensor which then morphed into my motor going into safe mode so took it to the shop and they said it was a bad throttle body. Bought a new one and now the thing idles high. When I start it up it sits at 900 rpm and then will level out at 600 rpm. But once I touch the pedal it will jump to 900 and takes a little bit to come down to 600 again. I ran codes on it today and there were none, so watched the diagnostics while running and the throttle positions return to normal (D-22%, E-10.6%) when pushed, but the THROT CMD hangs at 12% when I push the pedal and hang for awhile even with my foot off, and then will eventually drop to 6%. I'm hoping it's not the new throttle body I bought. Could it be a throttle sensor even with no codes? Any suggestions would be welcomed. Thanks!
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
Ok, so hoping the great minds in here might be able to help. Have a 2007 base. I was getting codes for the throttle sensor which then morphed into my motor going into safe mode so took it to the shop and they said it was a bad throttle body. Bought a new one and now the thing idles high. When I start it up it sits at 900 rpm and then will level out at 600 rpm. But once I touch the pedal it will jump to 900 and takes a little bit to come down to 600 again. I ran codes on it today and there were none, so watched the diagnostics while running and the throttle positions return to normal (D-22%, E-10.6%) when pushed, but the THROT CMD hangs at 12% when I push the pedal and hang for awhile even with my foot off, and then will eventually drop to 6%. I'm hoping it's not the new throttle body I bought. Could it be a throttle sensor even with no codes? Any suggestions would be welcomed. Thanks!
Thread Starter
2nd Gear
Joined: Sep 2014
Posts: 2
Likes: 0
No I bought it from Corvette Central and installed it. The dealer wanted $1200 to install a $400 part. How do you perform a throttle relearn? I had read in another forum to disconnect the battery, put the leads together for 2min and then hooked it back up, but didn't fix anything. Still idles high.
Le Mans Master
Joined: Jan 2008
Posts: 6,457
Likes: 297
From: corpus christi Texas
No I bought it from Corvette Central and installed it. The dealer wanted $1200 to install a $400 part. How do you perform a throttle relearn? I had read in another forum to disconnect the battery, put the leads together for 2min and then hooked it back up, but didn't fix anything. Still idles high.
