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turbo deisel problem

Tech Talk for Nissan owners.

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Posts: 77
Joined: Mon Apr 14, 2008 2:18 pm
Location: Maryborough qld

turbo deisel problem

Post by Articulator »

i have a MQ patrol with sd 33t motor.Just installed boost gauge and adjustable boost controller when i start it up the boost gauge is showing no boost or no vacumm could the wastegate actuator be stuffed or sticking .Any ideas cheers col
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Posts: 248
Joined: Fri Jan 16, 2009 12:48 pm
Location: Sth Wst QLD

Re: turbo deisel problem

Post by 300WinMag »

It is normal not to show vacum as diesels dont have a throttle body to create a pressure differential in the manifold. I can't remember does the SD33t have a butterfly valve on the intake?

Where does your gauge pick up from, i.e. turbo housing/ wastegate line or at the manifold and did you tap it into the same line as your boost controler?

If it is tapped into same line as controller it needs to be before the solenoid.
26 PSI 88 SWB TD 42 W/A IC
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Posts: 646
Joined: Thu Sep 07, 2006 10:51 pm
Location: Central Coast NSW

Re: turbo deisel problem

Post by Clanky »

Articulator wrote: when i start it up the boost gauge is showing no boost or no vacumm l
It wont show any boost at idle. Need to get it under load
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Posts: 331
Joined: Thu Feb 17, 2005 9:49 am
Location: Albury

Re: turbo deisel problem

Post by roberts »

Clanky wrote:
Articulator wrote: when i start it up the boost gauge is showing no boost or no vacumm l
It wont show any boost at idle. Need to get it under load
turbochargers 101
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Posts: 65
Joined: Fri May 30, 2008 7:54 pm
Location: Collie WA

Re: turbo deisel problem

Post by MuddyTroll »

roberts wrote:
Clanky wrote:
Articulator wrote: when i start it up the boost gauge is showing no boost or no vacumm l
It wont show any boost at idle. Need to get it under load
turbochargers 101
X2
Won't make boost till you make exhaust. :)
1997 GQ 4.2 Diesel Wagon
Aftermarket turbo & intercooler, 3" Exhaust,
4" susp Lift, 3" body lift, 35" Muddies
Spotties that start bushfires at 100m
Pleasure in life : Towing Toyotas
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Posts: 13
Joined: Wed Jun 23, 2010 8:14 pm

Re: turbo deisel problem

Post by Josh_525 »

Unless you've got a gt2860 on a TD42. 1.5psi at idle, I hate lag :finger:
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