Wastegate Disabling
Senior User
Joined: Nov 2003
Posts: 165
Likes: 0
From: Illinois
I disabled my wastegate actuator for about 10 minutes tonight...went on a 3 mile test drive, and the flutter and surge were so audible with it disengaged that I just had to plug it back in. (TYMAR) Didn't notice much if any performace difference either, but that may have been because I was listening to the noises.. Never got it to defuel though...
FTE Leadership Emeritus
Joined: May 2001
Posts: 13,653
Likes: 6
From: Cabot, Arkansas
the flutter and surge were so audible with it disengaged that I just had to plug it back in.
Never got it to defuel though
Senior User
Joined: Nov 2003
Posts: 165
Likes: 0
From: Illinois
Originally posted by cookie88
No suprise there. You add more air to a wheel that's already stalling and it gets worse. You'll notice the improvement once you get that wheel in.
I can't wait to get it in...should be on its way here by now, ready for install next weekend!
You probably won't get an SES if you are running the PPIII in your sig. It just can't put in enough fuel to get the boost that high.
No suprise there. You add more air to a wheel that's already stalling and it gets worse. You'll notice the improvement once you get that wheel in.
I can't wait to get it in...should be on its way here by now, ready for install next weekend!
You probably won't get an SES if you are running the PPIII in your sig. It just can't put in enough fuel to get the boost that high.
Posting Guru
Joined: Apr 2000
Posts: 1,345
Likes: 0
From: NorCal
Ok, so after reading this thread, I disconnected my wastegate. Yes it does spool up faster. That's a good thing. I've ran in for about a week, and tonight i was going up a grade and the SES light came on. I knew why, but I read on here that the PCM would defuel.. but I kept accelerating. I thought defueling would slow me down?!?!? any clues? And the light is still on after three restarts...
FTE Leadership Emeritus
Joined: May 2001
Posts: 13,653
Likes: 6
From: Cabot, Arkansas
I read on here that the PCM would defuel.. but I kept accelerating. I thought defueling would slow me down?!?!? any clues?
Clear as mud? Normally what that means is that you won't actually feel it defuel until you defeat the light, it just won't pull quite as hard as it should be.
And the light is still on after three restarts
Posting Guru
Joined: Apr 2000
Posts: 1,345
Likes: 0
From: NorCal
Originally posted by cookie88
By "defuel" ..... Clear as mud?
By "defuel" ..... Clear as mud?
That is not normal. Unhook the batteries (with the headlights on) for a half hour or so and see if it clears. If not have the code read. The overboost, high backpressure, and ICP high/low codes will reset on the next drive cycle, so you migh have something else going on.
I's been off for the past four drive cycles. 
Thanks for your help cookie!!
New User
Joined: Nov 2003
Posts: 22
Likes: 0
From: Norman
Originally posted by Strjock81
Higher boost that would have been released by the wastegate. I am not really sure as to how much extra boost you get...seems to me like it is there for a reason but I am just learning to, so I am interested in seeing what the answer is exactly. I wouldn't mind doing mine if I am going to see a big improvement.
Higher boost that would have been released by the wastegate. I am not really sure as to how much extra boost you get...seems to me like it is there for a reason but I am just learning to, so I am interested in seeing what the answer is exactly. I wouldn't mind doing mine if I am going to see a big improvement.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
FTE Leadership Emeritus
Joined: May 2001
Posts: 13,653
Likes: 6
From: Cabot, Arkansas
A boost controller is wasted effort on a diesel. You are only going to make as much boost as the fuel will allow, and with the wastegate still active it won't even spool any faster than normal (ask me how I know). Besides, the only thing the wasgate is protecting against is exhaust backpressure, and if you have an EGT gauge, you're already protecting yourself.
New User
Joined: Oct 2010
Posts: 1
Likes: 0
A boost controller is wasted effort on a diesel. You are only going to make as much boost as the fuel will allow, and with the wastegate still active it won't even spool any faster than normal (ask me how I know). Besides, the only thing the wasgate is protecting against is exhaust backpressure, and if you have an EGT gauge, you're already protecting yourself.
Thread
Thread Starter
Forum
Replies
Last Post
