Throttle Acceleration Problem
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=39635
Printed Date: October-07-2024 at 6:21am
Topic: Throttle Acceleration Problem
Posted By: CanadaNautiqueGuy
Subject: Throttle Acceleration Problem
Date Posted: August-09-2016 at 2:12pm
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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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Replies:
Posted By: Bri892001
Date Posted: August-09-2016 at 5:50pm
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Do you have Perfect Pass on this? If so, is it mechanical, that is, moving a physical throttle with a cable?
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Posted By: CanadaNautiqueGuy
Date Posted: August-09-2016 at 6:35pm
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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.
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Posted By: Bri892001
Date 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.
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