MSefi.com read only forum (Jan.15,2018)

I have a v3 board MS 2 and I am getting a very low voltage, .10, in Megatune. Just finished installing MAP( through step 55). All of my POTs are working correctly on the stim but I have the low voltage warning light. Baro is correct. The voltage on U5 is reading 12 on the closest to Db9 and 5 on furthest and I am getting less that 1ohm on the middle pin.
Also, I have verified that both my processor and configurator are set for 2.821( or whatever the newest edition ini is, they are the same).

Everything is going smoothly, I am just concerned about the low voltage. Any help would be appreciated.

Thanks,

Lee

Check the voltage across the main board H1 (boot) header - it should be 1/6 the battery voltage. This circuit is used for measuring the voltage. Let me know what you find.

I am getting .1 mV, very low. I should be checking this without the processor installed correct?

Also the voltage on U5 pin closest to Db9 is reading 11.95( I am using a wall plug to power the stim (V2.21), not a battery).

Thanks for the reply,

Lee

Doesn't matter if the processor is in there or not - at least not when things are working correctly. Having the processor out rules out a shorted out processor.

Check R3 and R6 to make sure they're within spec.

Yep R3 was missing MegaSquirt is now complete, thank you very much. Now time to do some wiring!!!

-Lee