Throttle Acceleration Problem

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   I've got a 2007 ZR6 engine. The engine shifts into gear and idles forward. Then on acceleration the throttle handle can be pushed wide open, but there is no response; the engine just continues to idle forward. Pull the throttle back and try again and it accelerates normally. This usually just happens on the fist acceleration after the engine has been off for awhile. Any thoughts?

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CanadaNautiqueGuy Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: June-07-2016 Location: Calgary, Albert Status: Offline Points: 8	Post Options Post Reply Quote CanadaNautiqueGuy Report Post Thanks(0) Quote Reply Topic: Throttle Acceleration Problem Posted: August-09-2016 at 2:12pm
	I've got a 2007 ZR6 engine. The engine shifts into gear and idles forward. Then on acceleration the throttle handle can be pushed wide open, but there is no response; the engine just continues to idle forward. Pull the throttle back and try again and it accelerates normally. This usually just happens on the fist acceleration after the engine has been off for awhile. Any thoughts?

Bri892001 Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: September-27-2008 Location: Boston MA Status: Offline Points: 4947	Post Options Post Reply Quote Bri892001 Report Post Thanks(0) Quote Reply Posted: August-09-2016 at 5:50pm
	Do you have Perfect Pass on this? If so, is it mechanical, that is, moving a physical throttle with a cable?

CanadaNautiqueGuy Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: June-07-2016 Location: Calgary, Albert Status: Offline Points: 8	Post Options Post Reply Quote CanadaNautiqueGuy Report Post Thanks(0) Quote Reply Posted: August-09-2016 at 6:35pm
	Yes, its has StarGazer on it, but when I move the throttle handle, the throttle cable moves normally, so it doesn't appear to be mechanical. And it happens with StarGazer on and off.

Bri892001 Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: September-27-2008 Location: Boston MA Status: Offline Points: 4947	Post Options Post Reply Quote Bri892001 Report Post Thanks(0) Quote Reply Posted: August-10-2016 at 1:46am
	Hmmm, yeah. The Perfect Pass is supposed to take up the slack as part of it's initialization routine. I've found it doesn't always do as it's supposed to. It could be low voltage, but sometimes it just flakes out. Next time your getting the non responsive throttle handle, open the doghouse, and look for the manual slack removal knob on the perfect pass throttle servo motor. If you're able to manually remove slack that way, you'll need to dive a little deeper into your PP system.

Throttle Acceleration Problem

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