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1994.5 - 1997 7.3L Power Stroke Diesel  

overboost....

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Old 01-09-2006, 07:27 PM
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overboost....
ok i cant remember at the moment.....will a obs truck throw a cel and code for overboost? 25+ psi
 
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Old 01-09-2006, 08:13 PM
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I thought the number was 22psi?????...........not sure.........
 
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Old 01-09-2006, 08:27 PM
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i have heard that some '97s will defuel but ive never had mine defuel and its a 97 pcm.
 
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Old 01-09-2006, 08:37 PM
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mine does something when i hit 26 psi...not sure if its defueling or rev limiter.....too fast in 3rd gear to be paying attention to tach and everything else going on.
 
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Old 01-09-2006, 08:45 PM
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24 on NBS, I think 1tfox is right about 22 on the OBS.
 
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Old 01-09-2006, 10:11 PM
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My 96 defueled at 22 psi until I put a fooler valve in now I can excede 30 without really trying.
 
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Old 01-12-2006, 05:56 PM
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ok, thanks i had a buddy asking me and i couldnt remember if it would throw a cel. ive had some pcm reprogramming done on my truck, it will run to the revlimiter before it backs fuel down.
 
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1994.5 - 1997 7.3L Power Stroke Diesel
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