Isuzu Trooper Owners Club UK™

modelwise · ** Joined: 03 Mar 2015 Posts: 100 Location: WIRRAL

hello there isuzu club

i have a 1995 isuzu trooper 3.1td had it 6 months now must say i love it when i bought car was fitted with few mods some completed some not
one being a turbo boost gauge i'd love to fix this and love some info how to i myself added few extras like dvd player tv cameras
is there a manual can get for this to help with fixing bits and bobs i hope thst i get some fead back Smile

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Red Robbo · Posted: Tue Mar 03, 2015 19:47 Post subject:

Two ways of looking at it or doing it..............If you want to see pressure at manifold then the easiest way is to put a pipe fitting into the plate that blanks oof the EGR valve positions ( if you dont have that then you would need to go straight into the inlet manifold).
If you want to see the wastegate control pressure ( especially if you fit a boost controller) then "T" into the pipe from intercooler to wastegate actuater.
In both case then plumb straight into gauge. If you fit a boost controller just follow the piping instructions Wink

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Khotso...........

Rhanagar · Posted: Tue Mar 03, 2015 22:36 Post subject:

You can tee off the port out of the intercooler that feeds the fuel pump at a push Wink

Basically. Small length of hose to a tee. One branch then goes to the fuel pump. The other goes to your gauge.
_________________
1990 Isuzu Bighorn LWB Mk.I 2.8TD Manual Lotus Edition
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto Lotus Edition

Deceased
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto LS

Rhanagar · Posted: Tue Mar 03, 2015 22:45 Post subject:

Red Robbo is talking about putting a port into one of the EGR blanking plates (if you have them) like below which would be the best option:

This is the port I was talking about that can feed your fuel pump and boost gauge (port 1):

http://i85.photobucket.com/albums/k49/Rhanagar/Trooper/26032010808-1.jpg
_________________
1990 Isuzu Bighorn LWB Mk.I 2.8TD Manual Lotus Edition
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto Lotus Edition

Deceased
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto LS

Rhanagar · Posted: Tue Mar 03, 2015 22:45 Post subject:

With second picture Confused

_________________
1990 Isuzu Bighorn LWB Mk.I 2.8TD Manual Lotus Edition
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto Lotus Edition

Deceased
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto LS

KKW · Posted: Wed Mar 04, 2015 21:14 Post subject:

Excuse my ignorance, but what's the point of doing this ?

modelwise · ** Joined: 03 Mar 2015 Posts: 100 Location: WIRRAL

josh2109 · * Joined: 15 Apr 2014 Posts: 35 Location: East Sussex

Rhanagar · Posted: Wed Mar 04, 2015 21:49 Post subject:

Knowing that the turbo on the 3.1 isn't the most reliable you can at least know if it is boosting properly in case something goes awry.
_________________
1990 Isuzu Bighorn LWB Mk.I 2.8TD Manual Lotus Edition
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto Lotus Edition

Deceased
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto LS

P6UL K · Newbie Joined: 11 Jan 2015 Posts: 7

Looking at that last picture, I don't have an actuator on my 3.1?

Rhanagar · Posted: Fri Mar 06, 2015 22:27 Post subject:

That picture of my 2.8 4JB1 ... you should have the port "1" though Wink

_________________
1990 Isuzu Bighorn LWB Mk.I 2.8TD Manual Lotus Edition
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto Lotus Edition

Deceased
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto LS

jacksdad1963 · Posted: Sat Mar 07, 2015 18:40 Post subject:

How about fitting one onto the mighty 3.0?
It will give me one more gauge to look at and worry about Shocked

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1999 3.0 TD Duty SWB
3" Body lift, 3" suspension lift, diff dropped, balljoints flipped, extended panhard, Tree sliders, Superwinch, +2" Pro Comps, 33" Mudders: Nearly finished!

darren m · Posted: Sat Mar 07, 2015 20:35 Post subject:

so looking at the pic pipe no 1 is boost and pie 2 is actuator

so what does/for the actuator , I,m sure I have one but defo no pipe connected to it

thanks
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93 SWB 3.1Turbo Duty intercooler

99 LWB 3.0 TD Citation

2000 LWB 3.0 / 3.1TD Duty conversion

Rhanagar · Posted: Sat Mar 07, 2015 20:56 Post subject:

Pipe "1" is the feed from the intercooler to the top of the fuel pump. When the turbo spools up and creates boost it by default forces air down this pipe. This forced air then pushes down on a diaphragm in the top of the fuel pump allowing more fuel through to compensate for the increased air. More air and fuel bigger bang more power.

This common on the 3.1 and 2.8 engines.

That photo is from my 2.8 and as such has the QWS (Quick Warm-up System) inlet actuator on the inlet to the intercooler. The 3.1 doesn't always have this. I have seen some with and some without. My 3.1 does have it. Now the QWS is only of real use when its really really cold, which it never gets to here in the UK. Also the exhaust actuator on the 3.1 is notorious for jamming up shut when used. As such people disable it along with the EGR's by removing all the hoses and running a single line from port "1" to the fuel pump.
_________________
1990 Isuzu Bighorn LWB Mk.I 2.8TD Manual Lotus Edition
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto Lotus Edition

Deceased
1994 Isuzu Bighorn LWB Mk.II 3.1TD Auto LS

modelwise · ** Joined: 03 Mar 2015 Posts: 100 Location: WIRRAL