Low Side injectors M130 ECU

[LouDen Motorsport]

Greetings all. We're part way through a new build of a gravel rallycar, and at the ECU wiring stage. It was supplied with pre-wired connectors, and while tracing out the various leads (while referencing the pinout chart) I may have stumbled over a small "issue".

We're staying with an unmodified engine at this stage, along with the OEM high-impedance injectors. And that may be the problem - 6 injectors and as far as I can see the M130 only has 2 low side injector outputs.

Apart from ;
a) buy 6 low-imp injectors to suit OR
b) tell the customer he should have bought an M142

do I have an option c) reconfigure the injector channels on the M130?

Thanks, in anticipation . . .

[stevieturbo]

https://www.youtube.com/watch?v=ua0YsE5b1Tg&wide=

Software and data would seem poorly laid out and worded, as you can configure high impedance/saturated within the software.

So you are not just limited to P&H which are in the minority these days.

[LouDen Motorsport]

Thanks for that, sir. I'll study it in the morning.

[Stephen Dean]

Hi,

You can run up to 8 Peak Hold injectors with an M130. You can run more than 8 Saturated injectors as well.

https://www.motec.com.au/m1s-compare/m1s-compare-m130/

The M142 is a Direct Injected ECU, the upscale from an M130 is the M150.

[stevieturbo]

That page does indicate it, but other lists and instructions dont actually make it clear that high impedance injectors are covered, because it mainly states for P&H injectors.

So it's easy to understand the OP's questioning.

[Stephen Dean]

Hi,

A high impendance or saturated injector (>12ohm) is easier for the ECU to drive as it has a lower current load compared to a low impedance (peak & hold) injector, this means that if an output is capable of driving a P&H injector, then it is also going to be able to drive a saturated injector. A Low Side Injector output is not able to drive a P&H injector however, as its current capacity is too low.

I'll have a word with the developers about getting the help clarified.