stuck throttle
Printed From: West Coast Fieros
Category: Technical Topics Forum
Forum Name: Technical Questions and Discussions
Forum Description: Got a technical question about your fiero? ask it here.
URL: http://www.westcoastfieros.com/forum/forum_posts.asp?TID=3398
Printed Date: 22 November 2024 at 12:01am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com
Topic: stuck throttle
Posted By: DannyCanuck
Subject: stuck throttle
Date Posted: 18 January 2014 at 5:14pm
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So I was driving to can-tire today, and as I turn onto 72
st my throttle stuck full open, (I can confirm that the 88 4cyl has a fuel cut-off around 7000 rpm) any Ideas what might cause this? after I closed the throttle it worked fine for the rest of the drive so my car still runs. ------------- 88 duke, bog standard 
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Replies:
Posted By: Patrick
Date Posted: 18 January 2014 at 8:59pm
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Cool, who'd ya smoke?
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DannyCanuck wrote:
Posted By: beken
Date Posted: 18 January 2014 at 11:36pm
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The Fieros have a single butterfly valve in the throttle body. In the 4cylinder cars, there is also a single fuel injector. The butterfly valve is controlled by a cable where the other end is wired to your gas pedal.
A throttle can stick open if your cable gets dirty and the resistance of the cable is higher for the spring, which provides force for the butterfly valve to close. Or the butterfly valve bearing is just dirty. Try cleaning your throttle body, particularly at the bearing where there are moving parts. Check the tension of the return spring. Then check that your cable is not frayed or dirty. The 87-88 throttle body for the 4 cylinder cars is different than the 84 to 86 units. So I don't have a picture to show you. Sorry -------------  Beken (aka Ken) - bekentech@westcoastfieros.com Original and still the owner of an 85SE 2M6 4spd |