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Discussion Starter #1
ok i have a 2001 with 214k miles
tymar intake
4"diamond eye exhaust
edge cts evolution
the truck seems to be having a prob it has lost all its power at take off. like i am afraid to turn in front of someone cause of its slow take off... it wasnt like this when i first got it ......also my turbo shutters when towing and going up a hill

my ? is what can i do with my cts to diagnose my prob
 

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Have you checked the intercooler boots for boost leaks?
 

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Start with the simple stuff first. Check your air, fuel and oil filters. Not familiar with the CTS but if you could check ICP and boost it would help.
 

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Discussion Starter #4
boost on the highway with it hammered to floor is around 18psi cruising on highway doing 65ish boost is 0-2psi

didnt really see much soot on turbo pipes
 

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Fuel pressure possibly.
 

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Discussion Starter #7
well its not a stock truck......

and what kind of diagnosis can I do with my edge CTS????? fuel pressure ???can it be checked by the cts?
 

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Fuel pressure needs it's own gauge. No OEM sensor.
 

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Could be the pedal sensor. I swapped mine cause either was acting kinda the same way( I had already checked fuel pressure, icp, air filter ect ...) and it made a world of difference. But you really need it on a good data logger or scanner to see what the computer is seeing as far as throttle pedal position....-
 

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Discussion Starter #12
Could be the pedal sensor. I swapped mine cause either was acting kinda the same way( I had already checked fuel pressure, icp, air filter ect ...) and it made a world of difference. But you really need it on a good data logger or scanner to see what the computer is seeing as far as throttle pedal position....-
i thouhjt the edge cts could data log
 

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I don't know exactly what it can do, but I know it can't do throttle position sensing...
 

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Discussion Starter #14
also fuel mileage has went to ****..... i have changed the map sensor and waste-gate solenoid ,,,,,,, and when in park if i rev it up like to 2500 rpm or so it barley gets 1-2 psi of boost ..... any help asap please im leaving for a road trip thurs.... also checked all intercooler lines and boots and all are good..... how can i check for a boost leak????
 

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also fuel mileage has went to ****..... i have changed the map sensor and waste-gate solenoid ,,,,,,, and when in park if i rev it up like to 2500 rpm or so it barley gets 1-2 psi of boost ..... any help asap please im leaving for a road trip thurs.... also checked all intercooler lines and boots and all are good..... how can i check for a boost leak????
you won't get boost sitting still. Gotta load up the motor.
pressurize the system to check for leaks

I made my Samsung SGH-I997 send this.
 

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Discussion Starter #16
ok so i pressure tested it and it held pressure with no leaks....... what else could it be?
 

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too many possibilities til you scan it. if boost is normal, turbo is ok, as is probably fuel delivery. possibly fuel timing, or heui pressure
 

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Ebpv stuck closed?
 
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