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1968-Present E-Series Van/Cutaway/Chassis Econolines. E150, E250, E350, E450 and E550

Check Engine Fault Codes

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Old Aug 25, 2018 | 08:33 AM
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Check Engine Fault Codes

A mechanic pulled some codes on my 95 E150 with the 5.0 V8. They are:

1) 122-throttle position sensor low (possible ground or open circuit)


​​​2) 125 - throttle position voltage lower than expected-fuel control

3) 157 - mass air flow signal is low/grounded

The van has new spark plugs, wires, and cap/rotor. It sometimes runs rough and if you press the throttle from a standstill it will hesitate. When it is running rough I can sense a sulfur type smell. I don't want to spend even more money at a mechanic and was wondering if I should try throwing a new TPS and MAF sensor at it? There were other codes found but they pertained to the A/C evaporator and torque converter clutch.
 
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Old Aug 26, 2018 | 07:58 PM
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Before you throw parts at it, you might want to make sure that the wiring is okay. Verify that you have a good ground for both, too.
 
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