Boost went from 40 PSI to 15 ???
05-01-2008, 08:00 PM
#1
Boost went from 40 PSI to 15 ???
My turbo is wastegated at 40. I can now only get about 15. Power has reduced quite a bit. Feels like its about back to stock.
Things I did out of the ordinary before this happened.
1)I did add a quart of 2 cycle fuel to a full tank.
2)The engine did rev up momentarily because my accelerator return spring broke when I stepped on it.
3)Sprayed the injection pump area/ linkage with some lubricant.
Is my stock lift pump going bad, would this cause loss of boost???
My intercooler boots are new and connected, I have Tim's 3" tubes.
LMK what I need to check?
I have been gathering items for a big line kit and will be installing a piston pump?
Things I did out of the ordinary before this happened.
1)I did add a quart of 2 cycle fuel to a full tank.
2)The engine did rev up momentarily because my accelerator return spring broke when I stepped on it.
3)Sprayed the injection pump area/ linkage with some lubricant.
Is my stock lift pump going bad, would this cause loss of boost???
My intercooler boots are new and connected, I have Tim's 3" tubes.
LMK what I need to check?
I have been gathering items for a big line kit and will be installing a piston pump?
05-01-2008, 08:19 PM
#2
Registered User
Join Date: Aug 2007
Location: VICTORIA B.C.
Posts: 353
Likes: 0
Received 0 Likes
on
0 Posts
Check the AFC diaphram and the little steel boost line going to it. Also might be the fuel pin (the little pin inside the pump when the afc diaphram is removed) With the diaphram removed work the throttle and see if the little pin pops out. If it does just push it back in so the afc can be reinstalled.
05-02-2008, 10:40 AM
#5
Registered User
Check the AFC diaphram and the little steel boost line going to it. Also might be the fuel pin (the little pin inside the pump when the afc diaphram is removed) With the diaphram removed work the throttle and see if the little pin pops out. If it does just push it back in so the afc can be reinstalled.
Pressure test the whole setup from the intake side of the turbo, spray it down with soapy water to find the leak.
Trending Topics
05-02-2008, 07:45 PM
#8
The spring that connects where the engine data tag is located to where the throttle linkage is located. The throttle stuck open momentarily and shut the engine down with the key. Are you saying this is the breakover spring or are you stating the breakover spring could be the problem? What is the breakover spring?
AFC BOOT and line are fine.
I am definitely not getting near as much black smoke at WOT.
Retightened boots, do not detect any leaks ?
Could it be the stock lift pump is failing ???
Please keep posting.
Thanks
Chris
AFC BOOT and line are fine.
I am definitely not getting near as much black smoke at WOT.
Retightened boots, do not detect any leaks ?
Could it be the stock lift pump is failing ???
Please keep posting.
Thanks
Chris
05-02-2008, 07:54 PM
#9
Registered User
The breakover spring is on the throttle linkage lever/plate, not the return spring.
Thread
Thread Starter
Forum
Replies
Last Post
38 Cigarette
24 Valve Engine and Drivetrain
16
08-28-2015 11:27 PM
VikingDiesel
3rd Gen Engine and Drivetrain -> 2003-2007
4
08-12-2007 10:10 PM
Dave88LX
Performance and Accessories 2nd gen only
15
09-04-2006 09:30 PM
drew03
Fuels / BioDiesel / Diesel Prices
76
02-06-2006 07:57 AM
ckennedy
3rd Gen Engine and Drivetrain -> 2003-2007
8
09-29-2004 05:06 PM