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Old November 6th, 2019, 03:14 PM
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Jrp79 Jrp79 is offline

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Default 99 f250 5.4 p1131

99 f250 5.4 with a 03 pi 5.4 engine swap.idles good drives good if driving normal.if i accelerate more then 1/2 throttle driving or idle it skips. Only code is p1131.
Someone put warn hubs so i removed the vac lines from the canister to the wheels.replaced all connections that were bad.all lines are hooked up.ac and heat blows out of any vent i select.gas cap looks good, oil dipstick and cap are tight. No holes in the air intake tube. Im stumped on what to check next.
Oem ford cops,new oem platinum plugs.

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