My truck or tunes have no power - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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  #1  
Old 05-20-2010, 08:34 AM
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My truck or tunes have no power

I 'm trying to get the EGR valve unstuck so I changed from the 310 down to the 75 enhanced TCM tune and the truck has absolutely has no power, I floor it and it is slooow. It will run just no power. So then I loaded the stock NR - same thing. Loaded the 150 - same thing and it shifts weird- wot TC reads 600- 700 like normal then drops to 60 like its trying to lock up at 25 MPH then jumps back up. I'm loading the 210 now then going back to the 310 it see if it is still running good. Any ideas?
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  #2  
Old 05-20-2010, 10:13 AM
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It won't make boost with the valve being stuck. You might see 25 lbs at most. Have you checked your codes to see if there are any other codes besided P0401?
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Old 05-20-2010, 10:35 AM
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the only one that threw a code was the stock NR - P1335
Runs fine on the 210
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Old 05-20-2010, 11:50 AM
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That is because the 210 doesn't need to cycle the valve while your driving. The 175 and under tune do, so it caused your truck to lose boost. It might even have put your truck in limp mode with that P1335 code....
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Old 05-20-2010, 12:09 PM
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You think it will free itself up on the 210 tune? Or I guess I'll have to take it to the dealer
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Old 05-20-2010, 12:22 PM
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It won't free itself up. It probably needs to be replaced or cleaned manually.
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Old 05-20-2010, 12:47 PM
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The P1335 Code will throw you into a "limp" mode. I believe it is not actually from the EGR solenoid being stuck, it is the throttle control plate malfunctioning. The Throttle control plate is quite complex and works almost as a separate computer in itself. It sounds like you may need a new one. You should also be seeing the "wrench" icon on the dash.

Last edited by H&S Tech; 05-20-2010 at 01:19 PM.
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Old 05-20-2010, 04:22 PM
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No wrench. The only time I get the code is the stock no regen tune. What do you think is causing the crazy shifting? It shifts hard and inconsistant and feels like the TC is trying to lock early
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