Yeah, it looks like I only need the single spade plug for the Megasquirt unit. I will be plugging the other two and I've got some ideas on what to do with them after they are plugged to add some flair.
Been researching wiring schematics for the last few days and I've finally come to a point that I have some questions. I'm just going to add a few tidbits before posting my questions to get any open thoughts and concerns out of the way.
-TVIS has been deleted.
-OX sensor is being replaced with a wideband.
-IACV has been removed and a blockoff plate has been added.
-No clutch engage switch to start.
-Cold start injector will be removed.
-AFM will be deleted.
Below I have added a wiring schematic for the engine harness. I have highlighted what the megasquirt requires and what I plan on running new harness for. Please look for any problems or things I may have missed.
Here are the color codes.
Blue = Existing wire
Green = Required for Megasquirt/new wires to be ran
Orange = Splices
Now, here are my questions.
1. MS does not show to need the ST wire, this seems odd to me but I'm assuming it was just a signal for the factory ECU. Is this correct?
2. Same as above question but with the OX sensor. Since I am installing a wideband I do not need it, correct?
3. Megasquirt says the following on deleting the AFM. Do I show the correct wires spliced on the diagram?
"To control the fuel pump, you need to do two things. You need to run a jumper wire between two wires at the AFM first. The GRN/RED wire and the BLUE/RED Wire. Connect these together."
4. On wires E21 & THW they show to connect together (E21 being a ground and THW being the ground side of the sensor). Am I wrong or does this mean I need the single prong connector for the dash gauge and another sensor for the MS? I believe this to be the case since the single prong sensor will not have a ground going to it.
5. I want to delete the Service connector, is this a good idea? Or should i just relocate somewhere hidden? I will have the MS and the fuel pump jumpered to come on with the key. I can't think of why I should keep it.
6. All the ground wires used to run to the intake of the engine, I would like to move them to the block so they are hidden. This will be fine as long as I have a ground wire going from the engine to the body of the car correct?
I think that's all I have for now. I still need to trace out the connector not shown on the diagram (Wipers and 12v sources since I canot find a diagram for it).
Unfortunately the diagram is in .pdf format and I'm at work with no resources to convert it. Here's the link for it on Google Drive.
https://drive.google.com/file/d/0BxGukY ... sp=sharing" onclick="window.open(this.href);return false;