AEM v2 s14 pnp ecu power/pin question

Advanced discussion of improving KA-T components
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silviaks2nr
Dont Question My Nissan Knowledge
Posts: 644
Joined: Sun Mar 12, 2006 3:48 pm
Location: South Carolina

AEM v2 s14 pnp ecu power/pin question

Post by silviaks2nr »

Hey folks

I'm trying to set my v2 up and I'm having trouble connecting to aem tuner via laptop (have tried with 3 different computers). I'm wondering if I have another issue going on either wiring or ems related. I'm getting switched ignition power at pin 38 (ignition relay input) when the key is turned to the "ON" position, and getting ~12v at pin 70 (backup power supply) but only ~1v at pins 56 and 61 which are labeled dedicated EMS power. Are pins 56 and 61 supposed to be getting +12v as well with the key "ON" but engine not running?

A little backstory, car was running fine on nistune for several years then I let it sit for a few months and had issues with the car not staying running. It would run fine for several minutes, then all of the sudden just shut off. Fuel pressure was fine and I was getting spark. At that point I just decided to switch to AEM pnp and get it back going again/MAP/Coil on plug and then re-tune. I have not wired the coils at this point, just the map and AIT sensors.
98 240sx 5spd
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