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nissan gu 2006
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36 Posts
Discussion Starter · #1 ·
Hi,
I have just installed my boost gauge and have a few questions.
- At idle I would expect to be making boost of some sort right?
- When I go for a run down the highway the boost runs up to 9psi than drops of to zero, even when running at 2300rpm again I thought the engine would be making boost.

Where should I start I have check my line run no leaks etc, It's plumbed off the inter cooler and it's on a 4.2TDi.

I also pulled the boost gauge line and it feels more like the engine is sucking (vacuum)

Cheers

Vealy
 

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nissan patrol
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305 Posts
Your guage will read 0 boost at idle. boost is not relevant to a set speed or RPM unless on full throttle. The more resistance to your engine, the more boost it will need.

Mine reaches max boost about 1900rpm (full throttle 15psi) then drops off at 2500rpm, at 3500rpm im only making 10psi
 
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