Ultimate Guide to Parameter Monitoring?

[Sid3wayS]

Originally Posted by johnredding What would be considered a BAT that is too high?

This is hard to say because there are many variables that go into bats. Ambient temps, mods, speed and time that the car is running all play a role. Generally the closer you are to ambient the better. For example with my sig I usually see about 12* above ambient in stop and go traffic, about 8-10 on the highway. Stock cars ive seen as much as 40* above in stop and go. Its one of those things you have to observe to find out what is normal for your situation. Asking locals with simular mods is a good average.

Originally Posted by ANITIX87 My UltraGauge came today. A few questions about some of the parameters. WGDC: I don't see anything called this, but there is "EGR Percentage" and "Evaporative Purge Percentage" and I am curious if either of those is the WGDC or not. Input from anybody? Also, does our car have fuel injector cutoff on coasting or engine braking? I didn't see my fuel pressure drop to zero on throttle lift-off, and I figure it should if injector cutoff is enabled, no? TIS

No niether one is wgdc. The egr is a system which recirculates exhaust gasses back into the intake tract mainly for emissions control. It isnt "flowing" during idle nor WoT so the values should only be present during normal cruising. I deleted mine so I have no idea what the values should be for this. The EPP I have no clue and have never heard of.

If your fuel pressure ever reads 0 while your motor is running you have major problems. No matter what the circumstances your injectors are always spraying fuel, the amount is what changes. At Wot the pressures should always be above 1600psi, during engine brake and coast the pressure will drop drasticly but should never be any where near zero.

[johnredding]

Originally Posted by Sid3wayS This is hard to say because there are many variables that go into bats. Ambient temps, mods, speed and time that the car is running all play a role. Generally the closer you are to ambient the better. For example with my sig I usually see about 12* above ambient in stop and go traffic, about 8-10 on the highway. Stock cars ive seen as much as 40* above in stop and go. Its one of those things you have to observe to find out what is normal for your situation. Asking locals with simular mods is a good average.

hey thanks for your answer sid3ways. i was just wondering what the "i should be alarmed" temp would be but i think i have my answer now. now to watch it and see if i need any more of your brilliance.