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[sam_a156]

Quote: Originally Posted by MINIAC (original)

VLT (Battery Voltage)

WT (Water Temperature)

What coolant temp should you see cruising at highway speeds?

MAP (Manifold Absolute Pressure)

I know the reading has to be adjusted by subtracting air pressure relative to altitude to determine boost. Do you correlate this reading to TPS (Throttle Position Setting) or LOD (Engine Load) or some other reading to determine if you have a boost leak?

IGN (Ignition Timing)

Anything to watch for here?

My two pennies:

WT - at least during the winter conditions here, it seems to sit at around 87C = 156F

MAP - I am only looking at the absolute value of this at WOT and close to red line. I am typically seeing up to 32.5 absolute reading, i.e. 32.5-14.5 = 18 PSI boost (4th gear, WOT, close to redline). I guess you should just figure out the normal amount of boost for your mods (pulley, crank pulley etc) and compare the readings to see if you have a leak. (though I recommend having somebody else in the car - it is a bit hazardous to keep looking at the Scangauge @ WOT, 4th gear and close to redline)

IGN - still trying to work this out myself. To my knowledge timing is adjusted e.g. when the intake air temps raise too much. Don't know what kind of readings I should be expecting though.