Gosh.....I've made up a thread now.
Salaam to all Pakwheelers.
The matter began since I got my engine swapped from E series to GA series, i.e. GA15de.
Matter got worse when it did not idle, and almost no help from the local electricians as in case of Nissan, most likely.
Now, where I've hooked up my ECU quite rightly i.e. wired up the start signal, ECU relay, ignition, and start engine wires, still there are some issues, which needs to be addressed.
1. Idle Air Control Valve - Auxiliary Air Control (IACV-ACC) Valve is not working. It has a 5 wire grip as shown below and the manual says that the third terminal of the wire grip must be emitting "battery voltage" i.e. 13 V and it is emitting only 0.1 V +/-. The continuity from the grip to the ECU is ok.
2. The things related to the IACV valve i.e. Steering Wheel Pressure Switch, Air Conditioner, Rear Window Defogger, and Lighting Switch wires are also emitting no current, i.e. they should emit current, but they are showing the same voltage as IACV valve showing i.e. 0.1 V +/-.
3. Electric Load Switch signal wire is also behaving the same. i.e. 0.1 V +/-.
4. Air Conditioner Relay wire is also not emitting current also, i.e. it has to give battery voltage i.e. 11-14 V.
Nissan GA15DE ECU Power Supply circuitry explained at Page 4 in detail.
IACV-Valve Nissan GA15DE Explained at Page 4 in detail for Nissan GA15DE owners without it functioning.
What is the problem ???
I'm attaching a few pics, which might be of help.
The ECU in Question:
Ok, here is the pic for an idea of the component I'm talking about.
This is the valve in the circle. it has a 5 wire grip infront of it.
This 113 Number wire from the ECU is not giving appropriate voltage. It is giving only 0.1 V. Although, I checked the resistance of the valve and it is okay.
The respective four items are also not working, as above mentioned, which when should be on, increase the rpm by IACV valve.
This is the diagnostic procedure for IACV as mentioned in the manual. I did the procedure and am stuck with the procedure as mentioned in the Box in front of "B", saying Check the Following: Harness Connectors F4, M40, etc.....
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