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EA TBI won't maintain constant revs 

 

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MAW
 Post subject: EA TBI won't maintain constant revs
Posted: Tue Jun 12, 2007 8:34 pm 
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G'day to all

My old faithful EA 3.9 TBI which was working fine has suddenly decided it does not want to maintain revs at any speed. It will not idle and it will not run at a constant throtle preasure. The only way it will run is if I gently tap the accelerator pedal but as soon as I lift my foot off or attempt to maintain the same preasure or attempt to increase preasure (without tapping) in a constant manner it just stalls.

Does anyone have an idea of what could be causing this?

Thanks

 

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alfy
Posted: Tue Jun 12, 2007 8:46 pm 
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what is TBI?

 

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MAW
Posted: Tue Jun 12, 2007 9:01 pm 
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Sorry, TBI is throtle body injection. Basicaly an electronic carby.

 

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xpression
Posted: Tue Jun 12, 2007 9:18 pm 
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it **could** the the tps but its hard to say without looking at the car.
also check the rubber hose that connects to the map sensor
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locknut
Posted: Wed Jun 13, 2007 5:57 pm 
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stab in the dark - vacuum hose? to the map sensor? :|

 

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