Pigtail Connector Help

I'll have to look later, are they inside or under the hood?

The immobilizer isn't gona be functional as it's tied to the Toyota PCM which I don't belive you are using.

 

Nvm @caribe makaira beat me to it

You can find the pinout to those in the junction connector pinouts file I linked to above.

 

Gotcha. So that rules out being able to unplug the engine room harness and just leave it out.

so I guess the real solution is to unplug it and unpin everything except those two connectors?

is there a better solution that I’m not seeing? Or should I just save myself the work and just insulate the harness and mesh it and make it look nice? I think no matter what I’ll have to run the ac clutch activation to my switch pros. I’m not sure what the ac amplifier looks for when turning on the clutch.

 

I tried looking through it on my phone, maybe that was my issue but I couldn’t make sense of it.

 

To enable the A/C Clutch the A/C Amplifier needs to see:
RPM signal (0-12v Square Wave) on Pin 22 (Black/White).
Engine Temp Signal (0-12v Square Wave (Duty Cycle varies with coolant temp)) on Pin 19 (Grey/Black).
A/C Permission signal on Pin 7 (Blue) (battery voltage Permit, 0v Deny).
Ground Signal on Pin 5 (Orange) from the A/C Pressure Switch.
Evaporator Temperature Signal on Pin 4 (Black) from the Evaporator Temp Sensor.

Yea it probably isn't very mobile friendly as it's 9 sheets but it covers every harness joining connector and all junction & fuse box connectors.

Here's the ones for the 2 connectors you showed above.

 

Does the stock gauge cluster take square wave signals for RPM and Temp?

if so, the Holley has output wires for both of these in square wave. What wires would I tap into and where to feed the cluster this data?

 

Yes the Combination Meter and A/C Amplifier use the same lines, if you have the original PCM plugs still there I'd tap into them there.
E7 Pin 1 (Black/White) is the Tach wire and E7 Pin 14 (Grey/Black) is the Temp wire.

 

Sorry E7 Is located where? The back of the cluster?

 

E7 is at the Tacoma PCM behind the glovebox.

 

I know I bet you feel like you’re talking to a toddler, but which connectors are which on the PCM there?

 

Get me a picture of the PCM connectors and I'll try to label them for you.

 

PCM is on left ECM is on right correct?

 

PCM (same as ECM) is on the right, the left is Junction Box No 2.

E7 is gona be the 2nd connector up from the bottom.
Pin 1 is the lower right of the connector

 

I can’t thank you enough for your help. Sorry for my ignorance

 

Are there any good IGN on 12v sources right there? The Holley requires two separate ign 12v sources on different circuits.

 

There is, depends how much current you need.
I assume you need one hot at all times and one hot is run and start?

 

Need a minimum of 5 amps. That’s right, I’ll need one that is hot all the time, and two separate ones that are hot whenever the ignition is turned on.

 

Looking at the EA1 Pin 1 descriptor:

the Holley has a fuel pump relay activation wire, could I take pin 30 out of E6 and use that to activate the fuel pump?

I’m still looking to see if there is a good constant power and two separate run/start power wires I can use for the Holley.

 

The fuel pump relay on Toyota is the C/OPN Relay, the Fuel Pump Relay only controls the speed of the fuel pump.

Can you send me the installation guide for the Holly EFI or a link to it and maybe I can see what the options are.

 

https://documents.holley.com/199r10762rev1.pdf