0299 code
Logistics Pro
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
Just out of curiosity, when you were revving the engine in the video were you in park? Or how high were you taking the RPM's? The reason I ask is because my truck doesn't build boost like that while I'm in park, certainly not enough for it to make the "CHA CHA CHA" sound when I let off the accelerator. Perhaps mine isn't working as intended. But it makes boost fine when I am driving.
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Junior User
Joined: Feb 2011
Posts: 68
Likes: 0
Just out of curiosity, when you were revving the engine in the video were you in park? Or how high were you taking the RPM's? The reason I ask is because my truck doesn't build boost like that while I'm in park, certainly not enough for it to make the "CHA CHA CHA" sound when I let off the accelerator. Perhaps mine isn't working as intended. But it makes boost fine when I am driving.
Logistics Pro
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
P0478 C* Exhaust Pressure Control Valve High Input EP is higher than EP desired by 260 kpa (37.7 PSI) for
greater than 30 seconds.
Faulty EP sensor, VGT control valve slow to respond, Stuck VGT
valve, faulty PCM.
P2263 C Turbo/Super Charger System Performance MAP hose, MAP sensor, CAC system leaks, Intake leaks, EP sensor,
exhaust restriction, exhaust leaks
greater than 30 seconds.
Faulty EP sensor, VGT control valve slow to respond, Stuck VGT
valve, faulty PCM.
P2263 C Turbo/Super Charger System Performance MAP hose, MAP sensor, CAC system leaks, Intake leaks, EP sensor,
exhaust restriction, exhaust leaks
Logistics Pro
Joined: Dec 2004
Posts: 4,138
Likes: 7
From: South Weber, Utah
You definately have something going on here, its like the inlet vanes are either stuck closed or being commanded closed. What is your VGT duty cycle doing when you go from idle and rev it like you were.
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Junior User
Joined: Feb 2011
Posts: 68
Likes: 0
I only captured data that was asked, so dont know vgt duty cycle,fyi i removed turbo Sat and cleaned inpected and re installed,vanes were relatively free before cleaning. Yes stock turbo 18k ago. My cousin has the scanner. So wouldnt be able to get that info till tomm. probably
Lead Driver
Joined: Mar 2010
Posts: 5,505
Likes: 257
From: Woodbridge, Ontario, CA
You're going to hate me right now. I don't know why, but I have this awful feeling that you didn't reassemble the turbo correctly. I have seen it before. One that I had apart years ago, was like yours, building little to no boost. It turned out that whomever had it apart cocked one of the vane fingers onto the pivot the wrong way. Miraculously, all it needed was to be reassembled correctly to repair successfully. I was amazed that even the pivots on the exhaust housing were intact.
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Thread Starter
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Junior User
Joined: Feb 2011
Posts: 68
Likes: 0
You're going to hate me right now. I don't know why, but I have this awful feeling that you didn't reassemble the turbo correctly. I have seen it before. One that I had apart years ago, was like yours, building little to no boost. It turned out that whomever had it apart cocked one of the vane fingers onto the pivot the wrong way. Miraculously, all it needed was to be reassembled correctly to repair successfully. I was amazed that even the pivots on the exhaust housing were intact.
Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 242
From: Saratoga Springs,UT
What was Baro reporting in KPA????? No Biggie Its not your issue Iv seen this before maybe Mike Knows what its reporting in KPA or PSI or what it is????
EBP is way High at High Idel its the Proble now we got to figure out WHY
So Im thinking BAD EBP sensor or Plugged exhaust
Tell us about your Exhaust system do you have the CAT how about the Muffler
Unplug the Wire pigtail from the EBP sensor and go for a Drive see how it ACTS does it get any better???? Im going to be on the edge of my seat till you get back HURREY LOL
Thread Starter
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Junior User
Joined: Feb 2011
Posts: 68
Likes: 0
What was Baro reporting in KPA????? No Biggie Its not your issue Iv seen this before maybe Mike Knows what its reporting in KPA or PSI or what it is????
EBP is way High at High Idel its the Proble now we got to figure out WHY
So Im thinking BAD EBP sensor or Plugged exhaust
Tell us about your Exhaust system do you have the CAT how about the Muffler
Unplug the Wire pigtail from the EBP sensor and go for a Drive see how it ACTS does it get any better???? Im going to be on the edge of my seat till you get back HURREY LOL
EBP is way High at High Idel its the Proble now we got to figure out WHY
So Im thinking BAD EBP sensor or Plugged exhaust
Tell us about your Exhaust system do you have the CAT how about the Muffler
Unplug the Wire pigtail from the EBP sensor and go for a Drive see how it ACTS does it get any better???? Im going to be on the edge of my seat till you get back HURREY LOL
Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 242
From: Saratoga Springs,UT
Well I have only saw 1 Guy on here that had a Plugged exhaust its Not Common at all
Just since you have High EBP Im just looking at it from all angles that would cause high EBP reading
These newer exhaust are all High Flow
To test for this you would remove the Clamp at the Back the Turbo where the Downpipe Hooks to turbo to vent it and see if things go normal
If it was me Id unplug the Wire to the EBP sensor and drive see what that does First
I put my money on the EBP sensor going bad Before the exhaust being Plugged
Sounds about right from other threads iv seen
Does inches of Mercury convert to 14 or 15psi???
Thread Starter
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Junior User
Joined: Feb 2011
Posts: 68
Likes: 0
Well I have only saw 1 Guy on here that had a Plugged exhaust its Not Common at all
Just since you have High EBP Im just looking at it from all angles that would cause high EBP reading
These newer exhaust are all High Flow
To test for this you would remove the Clamp at the Back the Turbo where the Downpipe Hooks to turbo to vent it and see if things go normal
If it was me Id unplug the Wire to the EBP sensor and drive see what that does First
I put my money on the EBP sensor going bad Before the exhaust being Plugged
Sounds about right from other threads iv seen
Does inches of Mercury convert to 14 or 15psi???
Just since you have High EBP Im just looking at it from all angles that would cause high EBP reading
These newer exhaust are all High Flow
To test for this you would remove the Clamp at the Back the Turbo where the Downpipe Hooks to turbo to vent it and see if things go normal
If it was me Id unplug the Wire to the EBP sensor and drive see what that does First
I put my money on the EBP sensor going bad Before the exhaust being Plugged
Sounds about right from other threads iv seen
Does inches of Mercury convert to 14 or 15psi???
Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 242
From: Saratoga Springs,UT
here is a link to his Video Guys
Got a Turbo Fart going on
http://api.viglink.com/api/click?for...13625375322144 click here
Got a Turbo Fart going on
http://api.viglink.com/api/click?for...13625375322144 click here