2ZR-FE Technical Question - Toyota Yaris Forums

SiRed94 · 10-14-2015, 09:41 AM

I have a 2011 Yaris HB that I am starting a 2ZR-FE swap in. I understand all of the mechanical aspects of the swap. However, my hang up is with the ECU/Immobilizer. My Yaris is equipped with an immobilizer and the ECU that I got from a 2011 Corolla also is immobilized. My question is, can a Yaris VIN be written to a Corolla ECU with TechStream? Can the Yaris key be programmed to the Corolla ECU? If the Yaris VIN is written to the Corolla ECU, will TechStream detect that it is a Yaris VIN and attempt to flash the ECU with Yaris fuel/ignition maps? It seems that most vehicles that 2ZR-FE swaps come from are equipped with an immobilizer, so if someone could shed some light on this, or steer me in the correct direction to another option, I would be very appreciative. I really do not want to retain the factory ECU, even if it can be tuned via piggyback, for lack of dual VVTi control. Thanks in advance.

CTScott · 10-14-2015, 11:27 PM

It is definitely more of a hassle with a 2009 or newer Yaris. You would need the ECM and keys from from the donor vehicle.

SirDigby · 10-15-2015, 10:07 PM

I would think not. immoblizer is usually a separate system. it will work or not. I don't think you'll have problems. I hope you have the vin for the corolla so you can get the brake code. otherwise you'll have to tow it to the dealership.

10-14-2015, 09:41 AM	#1
SiRed94 I've made a post! Drives: Too Many to List Join Date: Jan 2011 Location: Atlanta, GA Posts: 1	2ZR-FE Technical Question I have a 2011 Yaris HB that I am starting a 2ZR-FE swap in. I understand all of the mechanical aspects of the swap. However, my hang up is with the ECU/Immobilizer. My Yaris is equipped with an immobilizer and the ECU that I got from a 2011 Corolla also is immobilized. My question is, can a Yaris VIN be written to a Corolla ECU with TechStream? Can the Yaris key be programmed to the Corolla ECU? If the Yaris VIN is written to the Corolla ECU, will TechStream detect that it is a Yaris VIN and attempt to flash the ECU with Yaris fuel/ignition maps? It seems that most vehicles that 2ZR-FE swaps come from are equipped with an immobilizer, so if someone could shed some light on this, or steer me in the correct direction to another option, I would be very appreciative. I really do not want to retain the factory ECU, even if it can be tuned via piggyback, for lack of dual VVTi control. Thanks in advance.

10-14-2015, 11:27 PM	#2
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	It is definitely more of a hassle with a 2009 or newer Yaris. You would need the ECM and keys from from the donor vehicle. __________________

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10-15-2015, 10:07 PM	#3
SirDigby View User's Garage Drives: 2007 yaris 3 door Join Date: Sep 2015 Location: Denver, Colorado Posts: 1,000	I would think not. immoblizer is usually a separate system. it will work or not. I don't think you'll have problems. I hope you have the vin for the corolla so you can get the brake code. otherwise you'll have to tow it to the dealership.