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TB 4.2L carbie issues

Tech Talk for Nissan owners.

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Posts: 709
Joined: Thu Sep 22, 2005 7:49 pm
Location: campbelltown

TB 4.2L carbie issues

Post by Mousie »

hey i was just wondering a want point is the secondary supose to open ,

i`m gessing it is a vacume secondary? because it dose not open :P

when forced open VIA pushing down on the butterfly it opens up and fule comes out the jets as normal, BUT it dose not open on its own,

i am also having idling issues, there is no vacume leaks, and the tune is to factory spec out of the book points are good,

i cant nutt it out

cheers
R.A.G, Ruff As Gutts 4x4 club :P
http://www.rag4x4.com/
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Posts: 1258
Joined: Wed Mar 21, 2007 7:49 pm
Location: Mornington/ Victoria

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Contact PGS 4WD

Post by PGS 4WD »

It is vacuum secondary, possibly a damaged diaphram. It wont open free revving unless you are really getting stuck into it, and at that it will just crack open, it won't open properly unless under load. Can be checked on the dyno.

Cheers

Joel
-Pre trip inspections/ servicing
-Suspension/ custom modifications
-4wd Dyno & tuning
-Qualified mechanics
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