Toyota 1zz engine swap in Toyota Carina E London model 1998

[sdaniraza]

Aslamualaikum, i made a small circuit to run the AC copressor which runs fine, the problem is the signal to the Engine Ecu

[sdaniraza]

The ECU uses Multiplex communication not CAN

[Hassan1991]

Wailaikum Assalam
Yes that was a solution. But does it sends same pwm constantly?
You need ac amplifier of a car from which this engine came from. In your case it's toyota wish.
Or you can make a unit to read all that data from obd2 port and drive the compressor variably.

[Proverbial_Slang]

I just noticed that there are no pictures of the car in this thread.

[sdaniraza]

Does anyone has that AC amplifier module
Few pictures are here, please say Mashalla

[sdaniraza]

Yes it sends a constant pwm signal and a max current of 12watts

[Hassan1991]

MASHALLAH
You can buy it from scrap yard.

[capsat]

Toyota Corona T-190 parts are available in abundance at Rawalpinid scrap yards & at shoba bazar Pekhawar, HVAC parts & electricals are interchangeable without an issue.

[sdaniraza]

Aslamualaikum,i need AC compressor for 1Zzfe engine with a clutch. Any idea which compressor will fit ? I dont want Duet compressor ( scroll type ), anybody has one in good condition, whats the price?

[sdaniraza]

Aslamualaikum, i got a very powerful AC compressor from Toyota Hilux, pressure is very high n it is a clutch type compressor, i just need to know how to increase RPM with AC on. Can anyone help me?

[sdaniraza]

The Ecu does not have an AC input like in older engine ecu as AC1 and ACT, in original Toyota Wish ( donar car ) there is a very complex Automatic AC controller which uses communication MPXi signal to increase engine RPM. I dont think i can get that Module, and i will have to make a circuit of some sort. I just have a wild idea, how about making circuit for electronic throttle control, and introduce some sort of resistance potentiometer ( as throttle paddle has a potentiometer) to give ecu a signal to slightly increase RPM. N when AC off this circuit could be bypassed. I don't know if it can work. Is there any other idea?

[Hassan1991]

Wailaikum Assalam
There's usually clutch base compressor came in similar model with ac amplifier. You can install that amplifier and give compressor inputs to it.
Or you can try wiring it as ELS ( electronic load ). Like rear lights and head lights etc.

[sdaniraza]

Aslamualaikum where can i find this amplifier for AC and where to connect its signal? Any idea

[Hassan1991]

Wailaikum Assalam
From scrap yard.
Which signal?

[sdaniraza]

I was talking about wiring diagram

[Hassan1991]

Check this out.
AAAMB25A airco inside engine comp RHD.pdf (1.1 MB)

[sdaniraza]

Thanks for sharong Hassan Bi