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Got my ecu working, still no fuel or spark.
today we found some weird stuff while testing the CAS plug. I had a buddy who owns a 12v install shop come out and help me properly check voltage/continuity, he also redid my soldering to make sure it was good.
First, we checked voltage to the 4 pins at the CAS* plug with ignition on and off.
Using this diagram:
PIN 1: IGN (12v)
IGNITION ON: 3.6 VOLTS
IGNITION OFF: O VOLTS
Why only 3.6 volts? I checked a bunch of other plugs and they have 12v with ignition on...
PIN 2: ECCS Relay
IGNITION ON: 13.0 VOLTS
IGNITION OFF: 0 VOLTS
This should be the other way around, shouldnt it?
PIN 3: CAS signal
IGNITION ON: 5 VOLTS
IGNITION OFF: 0 VOLTS
PIN 4: CAS Signal
IGNITION ON: 5 VOLTS
IGNITION OFF: 0 VOLTS
We also tested for continuity between the plug end and the ecu plug pins.
CAS PIN 1 - ECU PIN 36
With ignition on, we had no continuity, but with ignition off we DID have continuity... Wtf? This is backwards?
CAS PIN 2 - ECU PIN 47
Continuity - good
CAS PIN 3 - ECU PIN 31
Continuity - good
CAS PIN 4 - ECU PIN 30
Continuity - good
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