Okay, I have 10+ hours on the dyno with my tuner trying to figure this out.
1. Sent EMS back to AEM for hardware update, fixed 3k ignition stutter
2. Re-gaped sparkplugs down to 19-20 (AEM recommendation)
3. disconnected knock sensors and everything not needed for the EMS (incase i was getting a bad signal)
4. still need to put new fuel filter in but tuner doesn’t think that could be it.
What it is doing:
When I go into boost 3-4psi it will kill fuel or ignition (it is not like a misfire/ blow out) it shuts down, I have to turn the ignition off for 5+ seconds and wait for the computer to come back online before it will start again. I think it is sensing a problem and shutting down to save the motor, but after logging runs and sending the tune and logs to AEM and the tuners buddies, everyone says it looks good.
I go back tomorrow for him to mess with the fazing on the distributer, he thinks it is dropping to much signal??
here is my set up
Holset HX40 turbo
AEM EMS v2 for NA-t
AEM UEGO wideband
AEM 3.5 map
PH fuel pump 360lph
rx-7 550 injectors
stock fuel rail/regulator/lines
here is a link to the build
and a reference picture