I have a '98 Ford Mustang 6. When on an incline it jerks, like a miss.

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I have a ’98 Ford Mustang 6. When on an incline it jerks, like a miss.

I have a '98 Ford Mustang 6. When on an incline it jerks, like a miss. Under acceleration, no problem. On the Super Slab up to 95-100 fine. It idles fine. We replaced wires, plugs, coil, all four CO2 sensors, ERG valve, ERG sensor, cam and crank sensors, three injectors, cooling fan motor. It's at the third shop now. I know other guys with the same thing.

Counterman Staff
By Counterman Staff
Published:

Could this be an issue? Was the crank pulley, harmonic balancer removed or replaced?

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Jim O’Neill – Chino Autotech Inc., Auto Club SoCal AAR


ISSUE:
The Malfunction Indicator Lamp (MIL) may illuminate and set Diagnostic Trouble Code(s) (DTC) P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, or P0308 on some vehicles. This may be due to the pulse ring of the crankshaft pulley and damper assembly being removed, replaced or reinstalled. This causes an incompatibility with the profile correction, or "learning", data stored within the Powertrain Control Module (PCM), which will illuminate the MIL when the engine is started.

ACTION:
Remove the negative battery cable for at least 5 minutes to erase the
original profile correction memory when removing, replacing, or reinstalling a pulse ring.

Source: ALLDATAPRO ONLINE

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