Hello ,
recently I just install my boost gauge , the lights and electrical all work fine,
I use this guy method of installing my gauge ,
here is his link.
http://www.jonesland.com/evo/BoostGauge_Install.htm

But something went wrong , after driving off the drive way and into 1st gear
at 25k rpm the car stall, if i trun the on the car starts again, it won't stall
if drive very slowly.
here is the link to my video.
http://www.youtube.com/watch?v=MJCYVKcaFCc

FYI.
the gauge I use is a autometer (mechanical) , I didn't use the nylon tubing that
came with the gauge , instead I use the rubber tube same as the windshield wiper,
not sure if that makes any different.

Any insights to what happen ?.

 

I have no clue. I have the same gauge that I will be installing soon. When you find out what is causing it, can you post it so I dont run into the same issue?

 

Boost/vacuum leak, do a boost leak test and fix the leak. Check to make sure that you didn't disconnect anything and forget to reconnect it. Sensors, or solenoids or anything. Check FPR solenoid on the passenger side of the intake manifold.

Josh

 

do you have a vaccum leak, or is your intercooler coupling lose? check those

 

I didn't tamper with those during the process, not sure why that would shut off the engine.

 

did u mess with the mass air etc? Check the vacum lines on the fuel rail

 

not that i remember ,
all i did was tap the fuel pressure hose with a T-tube fitting , and route
it to the fire wall and to the gauge as the website recomend.

 

check for a vac leak, and where is the rpm idle at?

The TB has a screw you can up the rpm a tad see if it levels out.

 

be vary wary if you mess with that screw. that adjusts the base idle, which means when timing etc is all held constant, via an expensive scan tool or maybe evo scan can do it i'm not sure. It shouldn't really be adjusted unless following the correct process or it can make your car run rough.

 

The RPM idles at 1k.while parking I rev up the rpm , the engine does not shut
down instead it drops to rough idle that bearly kept the engine from shutting off,
than it went back up to 1k.

 

Sounds like a vacuum leak issue. Try removing the boost gauge hose (back to stock) and see what happens. Still stalls?

I tee'd into the bov hose for the boost/vac gauge. Didn't like the idea of messing with the fpr hose for boost reference as it might cause fueling issue if the hose leaks or pops off.


.

 

Tryed that too , still stall. I am lost.

 

take it to a pro (NO)

 

All this didn't happen before i install the gauge.I don't know what went wrong.

 

okay here is update,
I put back on the fuel pressure hose on
and detach the negative from the battery and step on the brake to drain all power to reset it.
The car does not shut off now , but each time I rev up the engine the car rpm drops down follow
by a rough idle than return to normal idling(1k).
I been doing some research and come across similar situation and that is , I may have a
bad ignition timing.
Here are the symptoms that I can relate to .
1.lack of power
2.car warm up in the cold fast.
3.ticking noise coming from intake mani.

any one knows how or knows a link on how to check and adjust timing on evos?