I'm currently installing a j-spec 3sgte motor in my stepson 93 MR2 which was a N/A 2.2. The new motor is a 94 from Japan. The 2.2 ecu chassis harness only had 12 pins but the 2.0 turbo has 22 pins. The Canadian toyota manual shows 22 pins but only 14 are used. The chassis harness from the j-spec ecu has all 22 wires coming from it. What are the rest of these for?
And what issues might arise if they are not hooked up.
The pin outs are as follows -
STA(pin 11 - wire color = red/silver stripe),
ABS(pin 20 - green/silver stripe), ABS system somewere?
ATS(pin 8 - blue/yellow stripe with twin silver bands) A/C amp?
CF(pin 19 - black/ silver stripe)
ABV(pin 18 - black/with twin silver bands)
ECO(pin 6 - white/silver stripe) this is Exhaust temperature sensor signal from after CAT.
STP(pin 4 green/white stripe with single silver band) this goes to stop light switch somewere
EGW(pin 3 red/with twin silver bands) - this pin is Exhaust Gas Warning to led in dash -not req?
Forum for every generation Toyota MR2. Including the AW11 and SW20.
Linear Mode
