Idle issue

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Tunedout
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Joined: Wed Apr 17, 2013 9:06 pm
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Idle issue

Post by Tunedout »

I changed injectors and fuel pump to walbro 255 car cranks right up now. But idle is off it goes up and down. Maybe vacuum leak. I've changed a few hoses. And fuel filter . Maybe bad sensor but no (ses) on. Any thoughts .
1993 cobra #4904 teal
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WillyB93
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Re: Idle issue

Post by WillyB93 »

Did you re use the old plentium gasket or buy new? More then likely a vacuum leak or bad plentium gasket, had the same issue on an older one I had ended up being that gasket.
Last edited by WillyB93 on Thu Mar 06, 2014 9:24 am, edited 1 time in total.
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1993cobra
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Re: Idle issue

Post by 1993cobra »

Same size injectors?
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vinchez78
'93 Cobra Luhva
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Re: Idle issue

Post by vinchez78 »

I had an idle problem before and took it on the highway and drove it like I stole it, idled back to normal after that :drive:
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Romo93
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Re: Idle issue

Post by Romo93 »

I agree on the gasket leak. They can be a bitch to find sometimes.

Can even be as simple as cleaning your throttle body and mass air meter. Might as well check your TPS voltage as well.
1993 Black / Black Cobra #3929. V3 with a couple bolt-ons - 63,000 miles and counting....
redsvt
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Re: Idle issue

Post by redsvt »

sounds like it needs to relearn how to idle. and also the IAC my need cleaning. if that doesnt work spray brake clean around the gaskets and vacuum lines and listen for idle change.
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