1986 Ford Ranger vehicle stumbles

1986 FORD RANGER
4 CYL • 2WD • MANUAL
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IDA MILLER
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this is a 86 ford ranger xl with a 2.3 non turbo fuel injection engine.the vehicle starts to to miss,stumble and loading up and then you have to feather the fuel constantly. this happens when the vehicle reaches operating temp.never does it when it is cold.module,cap and rotor button fuel pump,fuel filters,temp sensors all have been replaced,but still does it when it gets up to temp.
Nov 14, 2014 at 9:00 AM
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JACOBANDNICKOLAS
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Is there black or white smoke from the exhaust?
Nov 14, 2014 at 9:25 AM
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IDA MILLER
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there is no smoke.
Nov 14, 2014 at 10:17 AM
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JACOBANDNICKOLAS
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Have you checked things like the catalytic converter (plugging), fuel pump pressure...?
Nov 14, 2014 at 5:53 PM
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IDA MILLER
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yes, it all has been checked everything is fine there.
Nov 14, 2014 at 6:39 PM
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JACOBANDNICKOLAS
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Wow, you've done a lot already. I assume since there is a new fuel pump, the pressure is within spec. Have you checked the EGR valve to see if it is plugged or sticking? Have you checked engine compression?
Nov 15, 2014 at 4:58 PM
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IDA MILLER
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we have checked both and everything is fine there also. so our next step is going to be a new computer?
Nov 15, 2014 at 6:38 PM