[RESOLVED] Boost Gauge Issues

[dj_remy]

This is a new one on me guys...........

Just re-tapped my boost controller into this line....

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I had it tapped into the BOV line, but heard alot of no-no's about that, so replaced my BOV line with a vacuum line from auto zone, a little to big but put a worm clamp on it.

My issue is, it was working fine before, when I tapped into the "P" line, sometimes when I let off the throttle and it goes into vacuum (around -10 - -20) the needle surges up an down very rapidly, when I get on it, it stops, when I'm alomst at a stop, it stops.....

any suggestions?

btw, when the engine is off, the needle sits just below 0, so I doubt the gauge is at fault.

 

[95burgundyesi]

I have always had awesome and flawless preformance tapping my boost gauge at the fuel pressure regulator line. Between the regulator and the black solinode.

I no longer use the solinode so the line goes straight from the regulator to nipple on the intake manifold. I have ran it both ways and it always worked.

 

[dj_remy]

I guess I'll try that now, what is the correct vacuum line size for the "p" line on the intake so I can replace it?

 

[95burgundyesi]

The auto parts store guy should be able to tell you, ide say the same size as window washer line from advanced. Comes in a box thats white and red. Did it work? let me know.

 

[dj_remy]

I will let you know, window washer line looks like it will work.

 

[95burgundyesi]

Good, I wasn't sure on the exact messurement. I removed emissions so I have caps

 

[Defiant]

I will let you know, window washer line looks like it will work.

Not for long. It's built for water, not gas and oil. Get real vacuum line (or, caps) for that application.

 

[95burgundyesi]

The size is what I ment. I am not good with numbers

 

[dj_remy]

Not for long. It's built for water, not gas and oil. Get real vacuum line (or, caps) for that application.

yeah using washer line as size reference, not actual use, measuring, then ordering silicone hose from extremepsi. but good looking out.

 

[dj_remy]

Well tapped into the FPR Line from the solenoid to the intake manifold, works great and I had some extra vac line from my BCS to my turbo intake / now capped, fit perfect and enought o fix the "p" line on intake, so thanks guys.