gauge monitoring ?'s

[Duffie112]

are you guys looking a absolute back pressure or desired? absolute looks right but not sure, and what other ones? im monitoring exhaust temp, oil temp, coolant temp, fuel rail pressure, boost, tranny temp and commanded egr? any other important ones? and what should the limits be on any others? thanks guys..

[SpartanDieselTech]

Originally Posted by Duffie112

are you guys looking a absolute back pressure or desired? absolute looks right but not sure, and what other ones? im monitoring exhaust temp, oil temp, coolant temp, fuel rail pressure, boost, tranny temp and commanded egr? any other important ones? and what should the limits be on any others? thanks guys..

Absolute EBP is the one you want to monitor.

From the list you've mentioned here, it seems that you have the bases covered

[08stroker250]

Originally Posted by SpartanDieselTech

Absolute EBP is the one you want to monitor.

From the list you've mentioned here, it seems that you have the bases covered

What he said ^^^^

I believe that the exact gauge name is Exhaust Pressure (absolute). It monitors exhaust back pressure + barometric pressure. The best way to figure out what number to subtract from the reading you see for EP (absolute) is to turn the key over without cranking the truck and see what EP (absolute) says. Typically it will be between 12-15 depending on elevation. From there you just have to remember to subtract that number from the reading during a drive cycle.

Example: EP reads 14.4 with the key on, engine off. You begin a drive cycle. You see EP hit 68 during the drive cycle. Actual exhaust back pressure is 53.6 psi.

Hopefully this helps!

[XPLOSIV]

Originally Posted by 08stroker250

What he said ^^^^

I believe that the exact gauge name is Exhaust Pressure (absolute). It monitors exhaust back pressure + barometric pressure. The best way to figure out what number to subtract from the reading you see for EP (absolute) is to turn the key over without cranking the truck and see what EP (absolute) says. Typically it will be between 12-15 depending on elevation. From there you just have to remember to subtract that number from the reading during a drive cycle.

Example: EP reads 14.4 with the key on, engine off. You begin a drive cycle. You see EP hit 68 during the drive cycle. Actual exhaust back pressure is 53.6 psi.

Hopefully this helps!

When setting the limits on this what do you want your range to be for high and low?

[08stroker250]

High warning - 60 + barometric pressure
High limit - 70 + barometric pressure

Basically if your barometric pressure is 13.X, set it at 73 and 83. 14.X should be 74 and 84, so on and so forth.

[Duffie112]

ok cool thanks alot!!