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post #1 of 5 (permalink) Old 09-05-2007, 12:10 AM Thread Starter
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PCM Code help

Well the code I keep getting while under full throttle is P0238.. Can anyone direct me to what this means or how to fix it.. I have a boost fooler thing but may need to turn it up..
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post #2 of 5 (permalink) Old 09-05-2007, 12:19 AM
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Re: PCM Code help

P0238 Turbo Boost Sensor A Circuit High Input
Sounds like the controller needs to be opened up a bit.

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post #3 of 5 (permalink) Old 09-05-2007, 12:26 AM
 
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Re: PCM Code help

Quote:
Originally Posted by Deputydog View Post
Well the code I keep getting while under full throttle is P0238.. Can anyone direct me to what this means or how to fix it.. I have a boost fooler thing but may need to turn it up..
For future reference you can search for the codes here. If they dont show up just be patient, more will be added.
https://www.powerstrokenation.com/forums/faq.php
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post #4 of 5 (permalink) Old 09-05-2007, 12:39 AM Thread Starter
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Re: PCM Code help

Ok thanks for the quick replies and the link
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post #5 of 5 (permalink) Old 09-05-2007, 12:45 AM
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Re: PCM Code help

P0238 is an ELECTRICAL code. P1249 is an "Overboost" code.

P0238 is either "Damaged MAP Sensor", "MAP Signal Circuit Short to Power or VREF" or "Faulty PCM".

If you have a good scantool (like AutoEnginuity or other) that can run KOEO tests, do the following:

1. Clear Codes
2. Disconnect MAP Sensor Electrical Connector
3. Key On / Engine Off
4. Run KOEO On Demand Self Test

If the P0238 returns, the problem is in the wiring or PCM. If no code returns, replace the MAP sensor.

Dennis Schroeder - Co-Owner of Strictly Diesel

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