andelee

Hi I'm Ande..I've just swapped a 2003 LS1 into my 59 El Camino.. I was wanted know if theres anyone out there that can tell me what software ect to use on either PC computer, Iphone or Android tablet to display an oil pressure gauge????
... I've been looking all over the net for days, with no answer..

PLS HELP!

Annde Lee

JoeNova

The Oil pressure sensor doesn't go to the PCM, just the dash gauge.

Take the signal wire from the oil pressure sensor and feed it into the PCM on Pin 58 of the Red/Green connector.

andelee

andelee

andelee

Averrett

Did you get this figured out? I'm trying to see oil pressure on my Torque app and if this works it will be great.

JoeRJr

I'm not saying you're wrong here, but I've got conflicting info. If I look up a 2003 Vette it shows the Oil Pressure Signal on a 5V reference coming from Pin 7 on the PCM, and going to pin 58 already. Tan wire, white stripe. I'm not sure that helps much though. You still have to find a way to display it. I've got an Ultragauge for my LS Swap, but Oil Pressure is not one of the PIDs they display.
Joe

gofastwclass

iTrader: (2)

JoeRJr, you are correct. The C5 Corvette uses an oil pressure gauge that ties into the PCM. As far as I'm aware that is the only vehicle with a Gen III engine that uses the PCM to display oil pressure information.

To get this to work you need the C5 Corvette oil pressure sender, the appropriate plug, proper wiring and to enable the option within the PCM. I use HP Tuners to modify the PCM settings but other software may be able to make the changes.

Michael Yount

iTrader: (1)

True for the C6/E38 pcm as well - the oil pressure sender delivers its data to the computer.

ddnspider

iTrader: (26)

Most ditch EGR and use the EGR valve pintle position to monitor fuel, oil, or boost pressure. Very easy to do.

Michael Yount

iTrader: (1)

My motor doesn't have egr....

ddnspider

iTrader: (26)

That's the point....you have a free wire for where you aren't using the EGR...

Michael Yount

iTrader: (1)

ddnspider - trying to learn, so use a few more words in your responses, as if I were a 2nd grader.

If my pcm is already monitoring, or has potential to monitor, oil pressure from the sender, what do I need the free wire for? I don't understand....

ddnspider

iTrader: (26)

you don't need it,my comments were for the OP. If he doesn't have a way to monitor oil pressure then using the EGR pintle position is a way to do it.

Michael Yount

iTrader: (1)

For OP's benefit (and my learning) - can you elaborate a bit? If the PCM egr monitoring algorithm is expecting some sort of signal related to egr function on that wire, how will sending an oil pressure signal there accomplish monitoring of the oil pressure? Or are some other changes (via tuning) needed to do something different with that oil pressure signal?

ddnspider

iTrader: (26)

The EGR pintle position is a 0-5V analog input to the ECU. HPT and EFI Live allow you to create custom PID's based off of various inputs of the ECU. So you create a custom PID that takes the EGR pintle position input and uses the equation of a linear line based on min/max pressure vs. output voltage of the oil pressure sensor. This allows you to log oil pressure.

Michael Yount

iTrader: (1)

Thanks spider for taking the time. For most of us, this is not "Very easy to do." In fact, I went out of my way to put together a combo that worked well without me having to ever get into the pcm/ecu for any "tuning" - obviously because I didn't have a clue how any of that worked. So when you take the time to actually lay it out, we can follow along and gain an understanding of what's possible.

Now - what in the heck is a PID? LOL....

ddnspider

iTrader: (26)

PID is just a fancy way to say you're logging a parameter with the tuning software.....like coolant temp, intake temp, etc. Technically it usually involves a modification of a sensor input, but keeping it basic.....you're just logging stuff. So you log the oil pressure sensor, but all you see is a varying voltage.....not very useful. But if you know how the sensor works, you can turn the analog voltage into an actual pressure that the engine is seeing....much more useful.

Michael Yount

iTrader: (1)

Proportional-integral-derivative perhaps? Now you've got me investigating stuff. No good can come from this....

ddnspider

iTrader: (26)

Yes, but why I didn't type that....no point in confusing people. K.I.S.S.