06-07 5.9L Feature Request List

Quote:

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Originally Posted by DoghouseDiesel

the oil pressure can't be scaled because it does not have an actual sensor.

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Yet, the earlier 2003-2004 ECM had a real sensor right?

Quote:

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Originally Posted by GMPX

Yet, the earlier 2003-2004 ECM had a real sensor right?

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Not 100% positive.

If someone has an '03 or early '04 handy, shoot me the VIN and I can run the part number and see.

I can also use the engine serial number if you have that.

I know the 2nd Gen (94 - 02) had a real sensor, but not sure on the 3rd Gen pre-canbus trucks.

Quote:

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Originally Posted by DoghouseDiesel

He's refering to gauges on the real dash, not the virtual dash.

There are several gauges on the Dodge "real" dash that are simply over size idiot lights.

Take the oil pressure for example. It does not actually measure the trucks real oil pressure. The "sensor" is a nothing more than a Hobbs switch. As soon as it sees 5 psi of oil pressure, it closes the circuit and this turns out the idiot light.

From there, the ECM "calculates" oil pressure based on engine temp and RPM. 99% of the time it's not even close. On my real oil pressure gauge, I see 25 psi at idle and 75 psi under heavy throttle. The dash gauge is always at 40.

The voltmeter is correct, the fuel gauge can be scaled, the coolant temp is correct, and the oil pressure can't be scaled because it does not have an actual sensor.

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Ah gotcha, trying to use EFILive to make a virtual gauge out of just an on/off light on the physical dash. Sounds like you've got it squared away though!

Completely understand about the calculated oil pressure, in my trucks the I6 engine uses a calculated sensor and the dash gauge can barely move but oil pressure is changing big time while the 5.3L and 6.0L V8s have an actual sensor output so the guage is more responsive and accurate.

Quote:

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Originally Posted by GMPX

Yet, the earlier 2003-2004 ECM had a real sensor right?

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But, if the oil pressure input could be scaled, could we not swap out the sensor for an older type to turn it into a real gauge?

Quote:

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Originally Posted by skneeland

But, if the oil pressure input could be scaled, could we not swap out the sensor for an older type to turn it into a real gauge?

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Not if the only thing the ECM is looking for is an on / off signal.

If it's looking for something that's a 5V reference, then it could be scaled.

It's just a matter of what it's actually looking for.

On the 2006-2007 the Oil Pressure 'switch' comes in on C1 pin2. On the 2003-2004 the oil pressure 'sensor' comes in on C2 pin12 which is probably a real A/D converter input so it can measure 0-5V rather than on/off.

Quote:

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Originally Posted by GMPX

On the 2006-2007 the Oil Pressure 'switch' comes in on C1 pin2. On the 2003-2004 the oil pressure 'sensor' comes in on C2 pin12 which is probably a real A/D converter input so it can measure 0-5V rather than on/off.

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Then there'd be making it talk to the cluster so the gauge reads correctly and doesn't trip the MIL.

Seams like it would be easier to put a pressure sender in one of the ports on the filter head and just view it as an analog input.

I'm trying to figure out a way to read the voltage signal from the Isspro Performax processor with the V2. That would allow logging of any sensor already in use. It would be great to be able to log real boost 1 & 2, egt, FP, etc.

If the signal is an analog 0-5V signal, you can use one of the orange analog connectors and plug it into your V2. Then write a custom calc PID to convert the voltage into a useable value.

Sounds easy enough, but I dont know what values you'd need to use to make the proper calc PID for that setup.

I apologize if any of these are repeats.

1) Adjust the temp at which the grid heater fires, and the duration
2) Adjust the temp at which the fan clutch engages, and level of engagement
3) Adjust the overhead mileage readout
4) Enable the B20 fuel filter option
5) Enable the "Fast Idle" option, and adjust the rpm range (i.e more than 1100-1500, like 1000-2500)
6) Adjust the fuel pump duration at key on