The 2zr-fe engine swap guide

[ArmstrongRacing]

I went through the wiring diagrams today and verified the 2zr ECM(automatic transmission) and harness are mostly plug-n-play with the Yaris U340E. For you guys using a manual transmission, you need a manual trans specific harness and ECM.

[beaker]

Originally Posted by ArmstrongRacing

I went through the wiring diagrams today and verified the 2zr ECM(automatic transmission) and harness are plug-n-play with the Yaris U340E. For you guys using a manual transmission, you need a manual trans specific harness and ECM.

Could you clarify a little more on this? What do you mean by U340E?

One of my other concerns is emissions. When you swap to a different car ECM, I'm wondering what kinda of problems that will create when one goes for their annual emissions testing? Doesn't the computer store the VIN info, and I wonder if it will throw a red flag when the emissions testing machine is hooked up to your car, and the VIN #s don't jive?

[beaker]

Originally Posted by beaker

Could you clarify a little more on this? What do you mean by U340E?

One of my other concerns is emissions. When you swap to a different car ECM, I'm wondering what kinda of problems that will create when one goes for their annual emissions testing? Doesn't the computer store the VIN info, and I wonder if it will throw a red flag when the emissions testing machine is hooked up to your car, and the VIN #s don't jive?

For those interested in the emissions question, I did some asking around and a little research at www.cleanairforce.com, which is the state of Georgia's website for emissions standards. It appears, or at least in my case, if you put an engine in a car that was never put in that said car for USA production, and that car falls under emissions standards, it then becomes what is called a "grey market vehicle." I have been told, but have not verified, that it is possible to get a "emissions waiver" from the state, if it can be demonstrated that your car will still pass emissions standards for your year make and model of car. I say that I haven't verified this, because what I found on the website is kinda vague, and this info came from the emissions inspector that recently had tested my car. I would definitely want to confirm with the state, that what he said is in fact the case. The emissions inspector did say that by putting a different ECM in my car( IE from a Scion XD), would throw a read flag, because the info coming out of the ECM would not jive with the car being tested, so it would fail without the waiver. Not sure if this info would apply the same to others in different states, but IMO, it would be something I would check on before doing the swap and spending the money.

I'm truly not trying to be a buzzkill, because this swap is AWESOME, and I really want to do this to my car. Just something to think about and investigate if your car is required to meet state emissions standards.

[CrankyOldMan]

Originally Posted by ArmstrongRacing

I went through the wiring diagrams today and verified the 2zr ECM(automatic transmission) and harness are plug-n-play with the Yaris U340E. For you guys using a manual transmission, you need a manual trans specific harness and ECM.

Good to know. I found that the Yaris ECU pinout is not compatible with the xD wire harness on either connector. Have you addressed the issues with the smaller connector on the ECU, since some of it goes into the interior? What about the end of the engine wire harness that goes into the engine bay relay/fuse box?

**EDIT**

Here's my spreadsheet for comparing the pinouts of the Yaris and xD ECU connectors. I will have to look at the EWDs again when I get home at the end of the month to see what the missing/conflicting names go to. Hopefully that connector just needs to be pin swapped.

[DarkShadowFox]

Originally Posted by ArmstrongRacing

I went through the wiring diagrams today and verified the 2zr ECM(automatic transmission) and harness are mostly plug-n-play with the Yaris U340E. For you guys using a manual transmission, you need a manual trans specific harness and ECM.

U340E is used from the 2006- yaris (all models minus the IA, to present, so It should fit with Mk2 and Mk3 models)