Well, I am putting some new gauges in my pickup and need some input. I have a 5spd so I dont need a tranny temp gauge. Im gettin a new boost and pyro with a 3 gauge pillar mount. So i need another gauge to put in and im not sure which to get, i was thinkin maybe a air/fuel ratio gauge... what u guys think. Also where do most of u put the boost gauges sensor, in the black y-pipe from the turbo to the engine????

 

For the third gauge I would get coolant temp. The factory guage is junk! Next to EGT's and tranny temp (for auto's)I think coolant temp and oil pressure are the two most important gauges you could have.

As for the boost gauge one very easy place to tap into is the 1/4 hose that runs to the MAP sensor. You can put a fitting in the y-pipe but the MAP hose is easier.

 

where is the hose to the MAP sensor?b MAP?????

 

fuel-air guages are junk unless you get an AEM UEGO wideband. The $50 fuel-air guages are not accurate AT ALL

 

AF guages are also useless on Diesels. your tail pipe is the AF gauge. If you have Black smoke your running rich, no smoke your running lean,

The MAP line is pictured here
its the hose hooked to the mini regulator
And the MAP sensor is the gray sensor on the left side

 

This is an squematic.