[Richard L]

1. If you are not going to reach 95% ever, then it is better to pre-amplifier the idc. Alternatively, you can leave it at 1:1 and use the gain trimmer to rescale the idc after the trigger point.

2. It is always better to measure the rate manually with the intended jest/jets for one minute. (use the SYS jumper)

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4. The red wire just tell the turns the entire system on. It is better to use a switched 12V rather the injector (+) as it can some time be very noisy and spiky. We have some Subaru drawings on this forum, mainly USDM but can be similar. Check this out. It is important this 12V should only be active at the "pre-crank" and "run" key position.

The injector (+) is often not found at the ECU. But we have picked a suitable pin at the ECU on the wiring drawings here.

Do you have a v11 or v12 gauge? (marking at the back of the gauge).