ECU Wiring Diagram

Hey Ceric,

Does your repair manual show a detailed diagram of the ECU wires/wiring? I am in the process of building a HHO generater using dry cells and need to know which wires going to the ECU are from the O2 sensors.

Thx.

benben01,
Wiring Diagram should have it.
Do you mean to find the MAF/IAT sensor inputs to PCM module, correct?
I ask because there are two O2 sensors for each bank and they are position at the exhaust side.
Since you are building HHO generator, I am guessing you want the MAF wiring to PCM.

Here is what I found.
MAF/IAT sensor has 5-pin (A,B,C,D,F - inc. Power/Ground) into PCM (1AJ, 1AN, 1AL for MAF, and 1AF for IAT).
I will send you a scanned page if this is correct.
Please provide an e-mail address thru PM so that I can send you the pages.

PCM is located at the front right corner under the hood if you stand in front of the CX9 facing the windshield.
MAF/IAT sensor location should be obvious.