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460 FI stumbles off idle

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Old 09-07-1999, 06:02 AM
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460 FI stumbles off idle
I have a '90 F-250 that runs great except for one thing. It tends to stumble off idle, occasionally quitting. Not a good thing when crossing an intersection. Any ideas where to start? TIA.
 
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Old 09-07-1999, 06:19 AM
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460 FI stumbles off idle
Could be the throttle position sensor (TPS). The function of this device is much like the accel jet on a carb. Sensing the opening of the butterfly valve, the computer momentarily richens the fuel injection.
 
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Old 09-07-1999, 09:54 AM
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460 FI stumbles off idle
 
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