Pulled some codes today

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Nov 23, 2008 | 12:17 AM

Ford79

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Joined: Mar 2000

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From: Hampstead, NC

Pulled some codes today

I finally got a code reader again and pulled the codes from my truck:

P0238- Turbo Boost Sensor A Circuit High Input
Never seen this one before. Don't know what it means.

P0470- Exhaust Back Pressure Sensor Circuit Error
Never seen this before. The tube and sensor were cleaned about a year ago.

P0743- Torque Convertor Clutch System Electrical Failure
Never seen this before. Could this be caused by the manual TC lock up switch I installed? This one has me a little worried.

I also got the P0541(I removed the IAH) and the P1211(caused by the chip)

I used a Superchips tuner to pull the codes. The three I listed I haven't seen with my truck before, though it has been over a year since I have pulled the codes. The one that concerns me most is the TC code.

Nov 23, 2008 | 12:36 AM

mueckster

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Joined: Jun 2003

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From: Damon (South East Texas)

Possible causes:
P0238 Circuit short to power, bad MAP sensor
P0470 Biased sensor, open signal return
P0743 Faulty solenoid, circuit, PCM (most likely due TC lock up switch, if TC is functioning normally; would be stalling with brake applied in D or 2, or there would be no TC lock up)

Nov 23, 2008 | 12:59 AM

zx250

Of the next Riffraff East

Joined: Oct 2004

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From: Concord NC

If it's been a year, I think I would clear them, run the truck for a few hundred miles and see if any comes back.

Nov 23, 2008 | 01:02 AM

mueckster

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From: Damon (South East Texas)

Quote:

Originally Posted by zx250

If it's been a year, I think I would clear them, run the truck for a few hundred miles and see if any comes back.

I agree with Barry. I overlooked about the 'over a year ago' part.

Nov 23, 2008 | 08:31 AM

Ford79

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From: Hampstead, NC

Thanks Roland and Barry.

Nov 23, 2008 | 08:33 AM

zx250

Of the next Riffraff East

Joined: Oct 2004

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From: Concord NC

No problem, let us know if any comes back..

Nov 29, 2008 | 06:17 PM

Ford79

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Lead Driver

Joined: Mar 2000

Posts: 9,359

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From: Hampstead, NC

After a couple hundred miles, these are the only 3 codes that came back. Looks like the EBPS might be bad?

P0470- Exhaust Back Pressure Sensor Circuit Error
Never seen this before. The tube and sensor were cleaned about a year ago.

I also got the P0541(I removed the IAH) and the P1211(caused by the chip)