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Old 05-27-2009   #1 (permalink)
Rammstein353 is offline Rookie

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Staten Island   New York
Default 1985 Thunderbird, rough idle and hesitation driving

i need some help here if anyone knows....i have a 1985 thunderbird with the 5.0 motor in it....it has the tbi or cfi crap...ok now i have this problem when i drive slowly or not giving it alot of gas it will stumble or sputter then i have to give it more gas then it rides fine ...2 times it stalled on me. sometimes when i come to a stop it will idle very low then catch itself and idle normal again. it almost feels like im running out of gas but i know im not. this is whats new....msd distributer cap, rotor, wires , ignition coil, spark plugs, oil and filter, fuel filter, throttle postioning sensor, coolant temperature sensor, some vaccum hoses, and air charge temperature sensor. so i still have the problem..im thinking either bad map sensor or fuel injectors or fuel pressure regulator..if anyone can please help..also might be the egr positioning sensor..i have no idea its killing me. thanks
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Old 05-28-2009   #2 (permalink)
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whats timing and tps set at? Have u reset ur idle?
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1988 GT Vert 70K
BBK Fender Cold Air, Ford E303, Cobra Intakes, Kirban Adj Fuel Reg, FRPP 65mm TB, 19# Explorer injectors, MAF Conversion, TF Valve Springs, BBK Equal Length Shorty's, KYB's all around, Magnaflow 2.5 high flow cats H pipe, American Thunder's, 3.73's, Speedo gear, AOD w/Performance Automatic street/strip valve body, Overdrive A+ Super Servo, 2-3 Accumulator upgrade, Urethane motor and tranny mounts, Smog, EGR and A/C delete
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Old 05-28-2009   #3 (permalink)
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the timing is set right i think 10 degress i forgot havent really messed with it ...and no i didnt adjust the idle its still the same from when i replaced the tps. it been doing it since before i replaced any sensors
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Old 05-28-2009   #4 (permalink)
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If u replaced the tps, your setting may be way off...theres a good sticky thread on top of this page that gives you directions on how to set it....whats ur adj fuel reg set at? Remember, whenever you play with a one setting, theres a good chance youll have to play with other settings to get it right. Dont get too frustrated...do a little reading on this site and use the "search" bar on top right of page to help out. It sounds to me like your tps setting is off and your car is starving for air during idle.
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1988 GT Vert 70K
BBK Fender Cold Air, Ford E303, Cobra Intakes, Kirban Adj Fuel Reg, FRPP 65mm TB, 19# Explorer injectors, MAF Conversion, TF Valve Springs, BBK Equal Length Shorty's, KYB's all around, Magnaflow 2.5 high flow cats H pipe, American Thunder's, 3.73's, Speedo gear, AOD w/Performance Automatic street/strip valve body, Overdrive A+ Super Servo, 2-3 Accumulator upgrade, Urethane motor and tranny mounts, Smog, EGR and A/C delete
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