too many toys
IM LOVIN IT
how do i adjust the the wastgate to either accept the boost that is being made or limit it to quit setting codes the truck is basicly stock with stock chip
overboost
- Thread starter too many toys
- Start date
It's just a six
Super Member
Re: overboost
Goodluck!!
Try lengthening the wastegate rod by one turn. Try that.too many toys said:
Goodluck!!
dhorsman2000
Member
Re: overboost
X's 2 Lengthen the rod of the wastegate to open quicker/sooner shorten it for a fun ride :rotf:
X's 2 Lengthen the rod of the wastegate to open quicker/sooner shorten it for a fun ride :rotf:
ghettosled
SYTY SUPERSTORE
Re: overboost
start by unplugging the electronic wastegate selenoid (top of turbo) to make sure it is making 8psi. If you are making more, perhaps you have a cutted or missing cat.
If you have a cat, then i would make sure all your lines are securely fastened from the turbo to the selenoid and to the actuator.. only then would i start loosening up the wg rod (unless you already know if has been tampered with).
start by unplugging the electronic wastegate selenoid (top of turbo) to make sure it is making 8psi. If you are making more, perhaps you have a cutted or missing cat.
If you have a cat, then i would make sure all your lines are securely fastened from the turbo to the selenoid and to the actuator.. only then would i start loosening up the wg rod (unless you already know if has been tampered with).
Black Knight
I Glow Therefore I am
Re: overboost
Anyone have any thoughts on why with my wg rod turned all the way in, it's screwed in as far a it possibly can go it only makes 13psi? If I unscrew it at all it starts to drop the boost down. Bad actuator?
Also on a side note when I take off from a stop the trucks builds right up to 8psi ( base boost ) then about a second or two later it will pass it to 10 or 11 then bounce around at 13. Does this sound like a normal condition or something sound off with the boost controler?
Anyone have any thoughts on why with my wg rod turned all the way in, it's screwed in as far a it possibly can go it only makes 13psi? If I unscrew it at all it starts to drop the boost down. Bad actuator?
Also on a side note when I take off from a stop the trucks builds right up to 8psi ( base boost ) then about a second or two later it will pass it to 10 or 11 then bounce around at 13. Does this sound like a normal condition or something sound off with the boost controler?
Black Knight
I Glow Therefore I am
Re: overboost
Anyone got any ideas?
Anyone got any ideas?
Black Knight
I Glow Therefore I am
Re: overboost
No the factroy gauge isn't accurate, it was gauged with a Autometer boost gauge.
The only person who has ever messed with it was me, I am trying to fine tune the boost setting in the truck and it was always low 8-10 psi with it screwed it to the 7/8 of the of the hole showing setting. So I started and little by little screwed it in farther and farther till it was all the way in and it still only make 13psi, what gives?
No the factroy gauge isn't accurate, it was gauged with a Autometer boost gauge.
The only person who has ever messed with it was me, I am trying to fine tune the boost setting in the truck and it was always low 8-10 psi with it screwed it to the 7/8 of the of the hole showing setting. So I started and little by little screwed it in farther and farther till it was all the way in and it still only make 13psi, what gives?
QUICK STORM
B.A.M.F. BMW Tech
Re: overboost
check wastegate flapper, you might be loosing boost thru it. check turbo shaft play as well.
check wastegate flapper, you might be loosing boost thru it. check turbo shaft play as well.
Black Knight
I Glow Therefore I am
Re: overboost
What do you what me to check on the flapper? I pulled on the actuator arm and released it a couple times, it doesn't seem stuck in any way, I can also hear it "clank" shut against the housing, so I think that it would be closed, any other way to check it?
Shaft play feels fine no in/out movement and minimal side/side seems normal, this is a pretty new turbo also I've only put maybe 5K on it, but the actuator I have no idea on its age. Could the actuator also be causing the boost to jump around or is that all going to be ECM contolled and I need to get a boost controller?
What do you what me to check on the flapper? I pulled on the actuator arm and released it a couple times, it doesn't seem stuck in any way, I can also hear it "clank" shut against the housing, so I think that it would be closed, any other way to check it?
Shaft play feels fine no in/out movement and minimal side/side seems normal, this is a pretty new turbo also I've only put maybe 5K on it, but the actuator I have no idea on its age. Could the actuator also be causing the boost to jump around or is that all going to be ECM contolled and I need to get a boost controller?
dirtdemon
"mr. ghettowrench"
Re: overboost
1st : i'm with ghettosled - check run w/o solenoid connected ... if youre making ~8 psi >>
2nd : check the vac-lines (esp. on the turbo) >>
3rd : think on the adjusting of the WG-rod like mentioned above (lenghten = -boost, shorten = +boost)
HTH, pat.
1st : i'm with ghettosled - check run w/o solenoid connected ... if youre making ~8 psi >>
2nd : check the vac-lines (esp. on the turbo) >>
3rd : think on the adjusting of the WG-rod like mentioned above (lenghten = -boost, shorten = +boost)
HTH, pat.
Black Knight
I Glow Therefore I am
Re: overboost
Well I went out and tried to make a base boost run I think something is wrong. To get base all you have to do is unplug the solenoid, right? Well I unplugged the hose on the pass. side and went for a run and it immediately spiked to 15 psi at only a 1/4 throttle so I let off and drove carefully up to Napa. Bought some new vac. line and while there I plugged the pass. side line back in and unplugged the the top driver side port, went for a little run same thing 1/4 throttle instant 15 psi. I stopped again plugged the drivers side into the pass. and plugged the pass. side into the drivers, continued home on the way it would only make 5-6 psi and did it very very slowly. Does any of this sound right? I thought all you had to do to make base was just unhook the actuator, does this sound like a bad actuator?
Well I went out and tried to make a base boost run I think something is wrong. To get base all you have to do is unplug the solenoid, right? Well I unplugged the hose on the pass. side and went for a run and it immediately spiked to 15 psi at only a 1/4 throttle so I let off and drove carefully up to Napa. Bought some new vac. line and while there I plugged the pass. side line back in and unplugged the the top driver side port, went for a little run same thing 1/4 throttle instant 15 psi. I stopped again plugged the drivers side into the pass. and plugged the pass. side into the drivers, continued home on the way it would only make 5-6 psi and did it very very slowly. Does any of this sound right? I thought all you had to do to make base was just unhook the actuator, does this sound like a bad actuator?
ghettosled
SYTY SUPERSTORE
Re: overboost
unplug the 2 wire plug connection, not the vacuum hose for base boost.
unplug the 2 wire plug connection, not the vacuum hose for base boost.
Black Knight
I Glow Therefore I am
Re: overboost
I went out and hooked vac. hoses back up correctly and unplugged the electrical connection, went for another run. From 20 mph to 70 mph at WOT it would make between 5.5 and 6.5 psi ( is that close enough to 8 psi or does it have to be a solid 8? ) I then stopped and plugged the connection back in and took off and same mph it jumped straight to 11psi, then on up to 14psi, then it dropped down to 11psi again and just hovered there at between 11 and 13 psi ( does this sound normal? )
I went out and hooked vac. hoses back up correctly and unplugged the electrical connection, went for another run. From 20 mph to 70 mph at WOT it would make between 5.5 and 6.5 psi ( is that close enough to 8 psi or does it have to be a solid 8? ) I then stopped and plugged the connection back in and took off and same mph it jumped straight to 11psi, then on up to 14psi, then it dropped down to 11psi again and just hovered there at between 11 and 13 psi ( does this sound normal? )
ghettosled
SYTY SUPERSTORE
Re: overboost
well if you are at 6psi i would tighten the wg rod till it makes 8psi with the electrical connection unplugged.. Then once plugged back in it should make 14psi. If it is hovering a few psi, i would think your wg is inadequate for your "straight pipe" and Gt30 td06 listed in the signature. It could also be detonating which is fluctuating your timing which will cause the boost to come in and out.
well if you are at 6psi i would tighten the wg rod till it makes 8psi with the electrical connection unplugged.. Then once plugged back in it should make 14psi. If it is hovering a few psi, i would think your wg is inadequate for your "straight pipe" and Gt30 td06 listed in the signature. It could also be detonating which is fluctuating your timing which will cause the boost to come in and out.
Black Knight
I Glow Therefore I am
Re: overboost
As of right now the wg rod is screwed in as far as it possibly can go, it wont screw in any farther and those numbers I gave you in the last post are with it screwed in all the way. Thats why I'm wondering if it sounds like I have a bad solenoid or actuator because they wern't replaced when I put on the new turbo.
As of right now the wg rod is screwed in as far as it possibly can go, it wont screw in any farther and those numbers I gave you in the last post are with it screwed in all the way. Thats why I'm wondering if it sounds like I have a bad solenoid or actuator because they wern't replaced when I put on the new turbo.
Black Knight
I Glow Therefore I am
Re: overboost
Anyone got any more ideas?
Anyone got any more ideas?
dirtdemon
"mr. ghettowrench"
Re: overboost
IMO ghettosled is right when he says knock can cause that, also a cat-delete can bring the stock WG to it's limit (ask me *gg*) and cause such issues -
please answer me again - do you have an aftermarket boostgauge (how sharp are the measurements) ?
crappy boost can also be caused by bad solenoid (sometimes), are you sure your FP / AFPR does fine ?
if so - go back to start and test the vac - easily when engine warm , at idle : spray all your vaclines w/ brake-cleaner or carb-cleaner and listen for different idle - if then idle goes up youre the winner - fawked vac-system ...
HTH,pat.
IMO ghettosled is right when he says knock can cause that, also a cat-delete can bring the stock WG to it's limit (ask me *gg*) and cause such issues -
please answer me again - do you have an aftermarket boostgauge (how sharp are the measurements) ?
crappy boost can also be caused by bad solenoid (sometimes), are you sure your FP / AFPR does fine ?
if so - go back to start and test the vac - easily when engine warm , at idle : spray all your vaclines w/ brake-cleaner or carb-cleaner and listen for different idle - if then idle goes up youre the winner - fawked vac-system ...
HTH,pat.
dirtdemon
"mr. ghettowrench"
Re: overboost
oh what i forgot :
there is another way to check the WG-actuator / boostsolenoid - but: not recommended w/o aftermarket boostgauge or leadleg :
disconnect the vacline from solenoid to actuator (WG = enalbled) - build boost , NO wot, easy on the right leg - see if it makes 15psi ... if not it should be a boost leak and boost is creeping > WG is fawked or way out of tolerance - if it does fine - do the vac
remember : sharp eye an boostgauge, otherwise : KABOOM !!! - no chance to dump boost !!!
good luck :2cents:
btw.: if it ain't that - another possibility could be the ignition, bad spark = knock
... when did you refresh the ignition (plugs, wires, cap+rotor, module) ?
oh what i forgot :
there is another way to check the WG-actuator / boostsolenoid - but: not recommended w/o aftermarket boostgauge or leadleg :
disconnect the vacline from solenoid to actuator (WG = enalbled) - build boost , NO wot, easy on the right leg - see if it makes 15psi ... if not it should be a boost leak and boost is creeping > WG is fawked or way out of tolerance - if it does fine - do the vac
remember : sharp eye an boostgauge, otherwise : KABOOM !!! - no chance to dump boost !!!
good luck :2cents:
btw.: if it ain't that - another possibility could be the ignition, bad spark = knock
... when did you refresh the ignition (plugs, wires, cap+rotor, module) ?
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