RB26 5V system.

[Nesquick]

so i was playing around with my ign timing on my S2 AEM EMS and almost had the timing dialed in to start running, then all of a sudden all the sensors on the 5v system showed the wrong figures.

my MAP sensor, throttle position, coolant temp, air temp sensors, are all showing really low volts

i got no spark, and no inj.

i unplugged all the messed up sensors and checked the voltages, and none of them had anywhere close to 5v (battery is charged btw).

here is a pic of the voltages on the EMS


is there any way of figuring out if i shorted something out or shorted out ALL the sensors, or the EMS itself?

i tested pin # 48 (AEM tech line told me to do this) off the ECU plug and it read 0.00v

what is my next move?

*EDIT* all fuses are good as well

[boostedh23a1]

I had the same problem with my S2 ems. i check it with the oem ecu and all was good, had to send the ems back to aem... now it works but i have no warranty now...

[Nesquick]

That's not what I wanted to hear lol

If I got a new EMS, wouldn't it just short out as well?

[LeD ippen]

make sure there is no short in wireharness before you get new ecu. happened to a maxima and intrepid i had at the shop did same thing.
tps coolant temp and 4 others went to full output 100% or 5v .

[Nesquick]

Just confirmed that it's the EMS. I checked the voltage at my MAP sensor with the AEM, read .13v. Plugged in my power fc, 5.1v...

Damn...

[boostedh23a1]

tell them to put a new warranty sticker on it.