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Mar 11, 2011 | 08:39 PM

gaer

Thread Starter

New User

Joined: Apr 2010

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Need Help

no power, poor rpm on 2003 6 litre
turbo wines, motor will only turn up just over 2000 rpm. i had a bad injector and a stuck turbo. i changed the injector, cleaned the turbo and still no change. cleaned the vct control valve and ebr valve(with carb cleaner) i brought it to the ford dealership and had it hooked up to computer and they said all injectors are running fine and good turbo pressure, i have all the latest updates and had code poo46(turbo boost control solenoid) did a performane test and it was ok. they found ebp sensor too high (indicating plugged exhaust). i took the exhaust off before the cat and still no change, put a new ebp sensor on and made sure piped clean, still no change. if i plug the vct control valve the turbo will open up and the motor will red line. now why wont my computer control the vct or do i have other issues? thanks in advance for any advice!

Mar 12, 2011 | 01:40 PM

Racerguy

Hotshot

Joined: Aug 2002

Posts: 12,679

Likes: 15

From: BC, Canada

Welcome to FTE

I've moved your question for you to the 6.0L specific forum.
The guys here should be able to help.

Mar 12, 2011 | 02:10 PM

bismic

Fleet Owner

Joined: Nov 2003

Posts: 27,922

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Do you have any mods? Have you checked your MAP sensor hose for plugging?

Mar 12, 2011 | 06:58 PM

wulfman

Posting Guru

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From: knox Tn

I think i read on here you are not supposed to clean the VGT control valve. Maybe that could be problem JMO

Mar 12, 2011 | 07:01 PM

bismic

Fleet Owner

Joined: Nov 2003

Posts: 27,922

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Quote:

Originally Posted by wulfman

I think i read on here you are not supposed to clean the VGT control valve. Maybe that could be problem JMO

Good catch - it is possible to damage it when cleaning it!

Mar 12, 2011 | 11:27 PM

BobsF350

Elder User

Joined: Apr 2004

Posts: 614

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bad turbo seal?

if you mat the pedal itll only go to 2000?when you do this does it smoke like a biiiitch out the ex pipe?

Mar 13, 2011 | 10:54 AM

gaer

Thread Starter

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Joined: Apr 2010

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when I step on the pedal , very little smoke. Just checked the MAP sensor,looks clean,after I cleaned the VCT control valve,Ford did a performance test and said it was working fine. Only mods I have is a 4 inch exhaust.rest is all stock. Ford also said I have full turbo boost.