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Codes Popping after changing clutch

Old 09-16-2018, 07:30 AM
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Join Date: Sep 2018
Location: Virginia
Posts: 2
Default Codes Popping after changing clutch

Good morning everyone. This is my first post here so don't beat me up too bad lol.

I have a 2009 Mustang V6 with a manual transmission. I just changed the clutch out on it a couple weeks ago(it actually sat in the garage for a few months with the battery disconnected and some of the components out of it. Anyways, it is back together and I have made sure everything is connected.

I have a lot of codes popping for the CEL and once I start driving it pops up the wrench icon on the instrument panel which I guess is "limp home mode". The car seems to drive fine other than not having the power it should in first gear after the limp home mode light comes on.

I took it to autozone and had them used the ODB scanner and the following codes popped which didn't pop before the clutch was changed:

P0102 Mass or Volume Air Flow Circuit Low input
P0135 Heated Oxygen Sensor Bank 1 Sensor 1
P0141 Heated Oxygen Sensor Bank 1 Sensor 2
P0155 Heated Oxygen Sensor Bank 2 Sensor 1
P0161 Heated Oxygen Sensor Bank 2 Sensor 2
P0403 Exhaust Gas Recirculation Circuit Malfunctioning
P0443 Evaporative Emission Control System Purge Valve Circuit Malfunction
P0446 EVAP System Vent Control Circuit

I had them reset the codes and once I drove away the limp home mode light came on and the next time I started the car the codes popped again. I'm kind of at a loss as to what could have caused all these codes to pop. Any ideas???
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Old 09-16-2018, 08:41 AM
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Join Date: May 2006
Location: North Carolina
Posts: 7,241

When you did the clutch you may have pinched some of the wires. All of those codes could happen when putting things back together and knocking a connection loose, pinching a wire, or swapping the wiring for the sensors from one bank to the other.
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Old 09-16-2018, 08:46 AM
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Join Date: Sep 2018
Location: Virginia
Posts: 2

Thanks for that. Iíll go through and double check all of the wires and connections. I hope I didnít pinch anything while putting it back on.
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Old 09-17-2018, 02:30 PM
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Join Date: Feb 2005
Location: AZ
Posts: 11,481

Pinched or not reconnected properly. When you find the harness, disconnect it and check for bent or loose pins. Then reconnect it.
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