Building a diypnp, Standalone harness wiring Options

[HardHead93]

I have been having nothing but trouble with my AEM FIC on my 5sfte set up. I have a 97 Celica GT Convertible with a newly rebuilt engine and a 16G CT-26 turbo set up. The ECU is not working well with the signals the piggyback is feeding the stock ECU. Based on a couple of posts I have seen on 6gc.net, I broke down and bought a diypnp 76 pin standalone. The diypnp has all the features I am looking for and the price doesn't break the bank. I just finished soldering the main board and am about to start doing the harness jumpers. Can anyone provide and example for wiring the diypnp?

[lagos]

Yes, when the AC is on the moment I push the clutch in the car stalls

When driving or when the car is at idle?

"It looks like the magnetic clutch is triggered by the "MCG" pin on the ECU. You'll want to configure the DIYPNP to use an on/off output on that pin, set as the "A/C idle up output" pin."

I don't think there is an MCG pin on the ecu?

Do you mean wire the PAO to the AC1 pinout and set TunerStudio for 5V signal?

Yes but in order to use PA0 for anything, you need to run it through a transistor first (one of the relays on the circuit board).
See the programable on/off section here:
https://www.diyautotune.com/support/tech/ha...On/Off_Outputs_

I would also check this functionality with a multimeter to make sure that it changes to a voltage switching circuit.


Remember that if all of this fails, you can just intercept the ground switching wire that goes to the AC relay like I did.

[HardHead93]

Yes, when the AC is on the moment I push the clutch in the car stalls

When driving or when the car is at idle?

"It looks like the magnetic clutch is triggered by the "MCG" pin on the ECU. You'll want to configure the DIYPNP to use an on/off output on that pin, set as the "A/C idle up output" pin."

I don't think there is an MCG pin on the ecu?

Do you mean wire the PAO to the AC1 pinout and set TunerStudio for 5V signal?

Yes but in order to use PA0 for anything, you need to run it through a transistor first (one of the relays on the circuit board).
See the programable on/off section here:
https://www.diyautotune.com/support/tech/ha...On/Off_Outputs_

I would also check this functionality with a multimeter to make sure that it changes to a voltage switching circuit.


Remember that if all of this fails, you can just intercept the ground switching wire that goes to the AC relay like I did.

The car stalls when I take the load off the engine for too long, so yes it happens when I idle or if I chose to coast not in gear. This only happens when I have the AC running. If I blip the throttle before the RPMs get to low I can sometimes stop the car from stalling and it will catch itself and continue to idle, although the idle is really weak.