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]

Glad you were able to get the unit working!

Here is what I did for AC idle up.
I disconnected all AC1, ACT, ATS connections. With nothing hooked up to the ecu, the ac compressor would come on just fine.
Next, I looked at the vehicle wiring diagram to determine the wire that ground switches the ac compressor relay in the passengers side fuse box.
I cut that wire and ran the ground signal into the Flex pin. Then I connected the PA0 output to control the ac relay.

I believe the in order to use the PA0 output, you have to run it into the in port of relay1,relay2 or relay3 of the DIYPNP circuit board. Just double check this in the assembly documentation.

Does the car stall at idle or deceleration?

[HardHead93]

Glad you were able to get the unit working!

Here is what I did for AC idle up.
I disconnected all AC1, ACT, ATS connections. With nothing hooked up to the ecu, the ac compressor would come on just fine.
Next, I looked at the vehicle wiring diagram to determine the wire that ground switches the ac compressor relay in the passengers side fuse box.
I cut that wire and ran the ground signal into the Flex pin. Then I connected the PA0 output to control the ac relay.

I believe the in order to use the PA0 output, you have to run it into the in port of relay1,relay2 or relay3 of the DIYPNP circuit board. Just double check this in the assembly documentation.

Does the car stall at idle or deceleration?

Yes, when the AC is on the moment I push the clutch in the car stalls. I sent an e-mail to DIYAutoTune and got the following response back:

"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."

The only other AC pin on the ECU for my car is the AC1. Is that the AC idle up signal? The ACT is used for cutting the AC when the car is under high load which explains why the AC stops working when I connect to that pinout.

With the A/C on:
AC1: 0.29V
ACT: 5.55V
ATS: 0.00V

You can also try sending 5v to AC1 to see if the compressor comes on.

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

This post has been edited by HardHead93: Aug 9, 2016 - 11:07 PM