Hi all, I've got a Lotus Elise (hence the subject ) with a Honda K20A JDM lump in the back of it.
It goes like a cut cat but I have a couple of minor issues still to sort out. I'm not sure what ECU I've got. On the side of the ECU there is a serial number 37820-PRC-013 2070-100532. Does this mean the ECU is a PRC model - if so it's not listed in the ref section. Reason I'm asking is because my O2 sensor isn't working. Whether this is because it's wired incorrectly into the ECU or is just not working I'm not sure. I think it's not a happy puppy because putting a meter across the heater pins (DENSO - so two black wires) gets no reading and I should be seeing around 4 ohms - that's what I see on the old engines O2 sensor. Of course it could have been baked by wrong pin assignment...
Could someone enlighten me as to the correct pin assignment for the O2 sensor. Please specify from which direction you're looking at the plug from (I look at it from the wire side of the plug where you can see the pin number stamped into the plug.)
It goes like a cut cat but I have a couple of minor issues still to sort out. I'm not sure what ECU I've got. On the side of the ECU there is a serial number 37820-PRC-013 2070-100532. Does this mean the ECU is a PRC model - if so it's not listed in the ref section. Reason I'm asking is because my O2 sensor isn't working. Whether this is because it's wired incorrectly into the ECU or is just not working I'm not sure. I think it's not a happy puppy because putting a meter across the heater pins (DENSO - so two black wires) gets no reading and I should be seeing around 4 ohms - that's what I see on the old engines O2 sensor. Of course it could have been baked by wrong pin assignment...
Could someone enlighten me as to the correct pin assignment for the O2 sensor. Please specify from which direction you're looking at the plug from (I look at it from the wire side of the plug where you can see the pin number stamped into the plug.)