Can MS3x handle these inputs?

[DHH]

I am about to hit the purchase button on a MS3 and the MS3x card, but just need confirmation that it will do what I believe it will.
I am pretty sure I have the available 0-5v analog inputs figured out, but need confirmation.

I'm going to use it for a LS3 crate motor and using the predefined MAT/CLT/TPS/O2/MAP. On the expansion card I plan to use SpareADC for a fuel pressure sensor, EGO2 for a 2nd O2, and EXT_MAP for barometric sensor.

As far as I can tell, there is still SPR3 and SPR4 available, but if I add the knock module for 2 knock sensors, it will use these two inputs. Correct?
If I can, I'd like to add an oil pressure sensor also. Is there another input I can use?

Now I am assuming that all the "limp modes" that are listed for the MSPro (on diyauto.com) are available in the MS3 also.
So the reason I want a fuel pressure and oil pressure input are so I can trigger an output on a low reading....and that output will trigger the low meth input to set the ecu into limp mode.

Will this work?

Thanks in advance.

[jsmcortina]

That additional oil pressure input is going to be more tricky. It can be done, but you would need to customise the ECU internally and add an additional connector.

James

[Matt Cramer]

I am about to hit the purchase button on a MS3 and the MS3x card, but just need confirmation that it will do what I believe it will.
I am pretty sure I have the available 0-5v analog inputs figured out, but need confirmation.

I'm going to use it for a LS3 crate motor and using the predefined MAT/CLT/TPS/O2/MAP. On the expansion card I plan to use SpareADC for a fuel pressure sensor, EGO2 for a 2nd O2, and EXT_MAP for barometric sensor.

As far as I can tell, there is still SPR3 and SPR4 available, but if I add the knock module for 2 knock sensors, it will use these two inputs. Correct?
If I can, I'd like to add an oil pressure sensor also. Is there another input I can use?

If this is a V3.57, we have been using the DB15 for the knock input ports.

If this is a V3.0, you could either cut a hole in the case for an extra connector, or if you are not using the CAN outputs, you could use them for the oil pressure sensor input.

As James noted, either board would need mods. However, it is possible - the knock module ties up the LED inputs, but there is still an ADC available.

Now I am assuming that all the "limp modes" that are listed for the MSPro (on diyauto.com) are available in the MS3 also.
So the reason I want a fuel pressure and oil pressure input are so I can trigger an output on a low reading....and that output will trigger the low meth input to set the ecu into limp mode.

Will this work?

Thanks in advance.

Yes, the limp modes are the same from the MS3Pro to the DIY MS3s.

[DHH]

Thanks for the quick response guys!
Looks like I'll be putting in an order soon. I almost ended up going with a Holley, but their proprietary O2 sensor turned me off. That, and it's only an LSU4.2.
The MS's ability to use any O2 sensor was the real selling point for me. It wasn't really about price.
I was surprised to find out how many of the "big guys" are still stuck on the 4.2, when the auto industry stopped using it 20 years ago.

[DHH]

If this is a V3.0, you could either cut a hole in the case for an extra connector, or if you are not using the CAN outputs, you could use them for the oil pressure sensor input.

As James noted, either board would need mods. However, it is possible - the knock module ties up the LED inputs, but there is still an ADC available.

Bringing this back up because I purchase the MS3x with knock module and clock and after going through the entire manual (and searching here), I am not 100% sure exactly how to add the extra ADC?
I realize this question should be in the Board Assembly section, but this thread was already started, so....

I am assuming I use this circuit:

Spare Analog Input.jpg

...but if SPR3/4 are taken by the knock module, I assume JS4/5 are also taken.
I am not using the CANbus, so would I use SPR1 or SPR2? Which JS pin would I use.

The case and connector mod is no problem as I am making my own case and using a Molex 80pin connector instead of the DB37's.

[jsmcortina]

...but if SPR3/4 are taken by the knock module, I assume JS4/5 are also taken.

You assume wrong. JS4 and JS5 are free as you have described it.

I am not using the CANbus, so would I use SPR1 or SPR2?

Yes you could.

However, if you are using your own connectors, then the SPR1,2,3,4 names are irrelevant.

James

[DHH]

Thanks for the quick response James.

So if JS4/5 are available, am I correct in assuming there are 2 ADC's available?

As far as SPR1,2,3,4; I am just referring to the names that are embossed on the pcb.

[jsmcortina]

Thanks for the quick response James.

So if JS4/5 are available, am I correct in assuming there are 2 ADC's available?

As far as SPR1,2,3,4; I am just referring to the names that are embossed on the pcb.

I know, but they only connect that hole to the DB37 connector that you said you won't be using.

James