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Check Engine Light when to the floor

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Old Jun 7, 2005 | 09:14 PM
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edub32
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Check Engine Light when to the floor

Cannot figure this out, have searched and found nothing, when I get on my 01 PSD for a while until I get up to 20 psi the check engine light comes on..I'm starting to think that this is a temperature sensor going off because it will go out eventually if I don't push it anymore after. Anyone know what is causing the check engine light to come on???
Thanks
 
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Old Jun 7, 2005 | 09:17 PM
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Probably overboost. Get the code read and we can be sure by the number.
 
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Old Jun 7, 2005 | 09:30 PM
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I had the check engine light at WOT before I disabled my wastegate actuator @15 psi and I've seen people on here @22 psi just with the WAV disabled AND people with the predator with 30psi+ and havent heard of any complaints of a check engine light problem???? I'm not quite sure I understand this overboost thing please explain.
 

Last edited by edub32; Jun 7, 2005 at 09:32 PM.
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Old Jun 7, 2005 | 09:34 PM
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Could the 6637 Filter Mod with the relocation of that sensor that was in the stock box cause any problems?? I just zip-tied it right behind it. I will get the codes read ASAP
 
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Old Jun 7, 2005 | 09:35 PM
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Most people use a regulator in the MAP line so the computer will only see a certain amount of boost. I'm not sure thats your problem without a code. The SES light will come on around 24psi.
 
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Old Jun 7, 2005 | 09:41 PM
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Thanks for all the help, where can I get this regulator?
 
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Old Jun 7, 2005 | 09:50 PM
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http://www.itpdiesel.com/OverboostKit.shtm
The temp sensor should be fine. Make sure it's not touching anything at the sensor end.
 
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