[Z3R0_F0UR]

SO, I have an 02 prizm , 1zzfe , burning oil like crazy and started knocking I need a new engine and I’ve wanted to 2z swap it for a while now , I’m going to eventually so I don’t see the point in buying another 1z just to put a 2z in later , so here’s where I’m at for requirements
2zzge from a 02 celica gts (cable throttle)
Celica gts ECU 02
engine harness from a 02 celica
1zz exhaust header
(i want to c60 swap it as well but that’s not in the budget right now so im sticking with the c59)
I know there’s issues with wiring the engine into my car but I have no idea WHAT those are , I’ve read that I can use a 02 4spd auto corolla harness with extra wires for pressure sensors and vvl but I don’t know what that means so pls help

 

[1998Prizm]

Hey, I've done that exact swap. A 03 Matrix ECU or 00-01 Celica ECU will be better. For wiring, don't bother swapping out the harness. It's best to leave it completely stock and build an adapter. I have all the wiring diagrams you need. I have been working on a full DIY guide on the entire swap, I'll polish it off and post it soon.

 

[Z3R0_F0UR]

Hey, I've done that exact swap. A 03 Matrix ECU or 00-01 Celica ECU will be better. For wiring, don't bother swapping out the harness. It's best to leave it completely stock and build an adapter. I have all the wiring diagrams you need. I have been working on a full DIY guide on the entire swap, I'll polish it off and post it soon.

So keep the 1zz harness and then make adapters the ECU?

 

[1998Prizm]

Yep. Take the stock ECU (or any ECU that will plug into your existing harness) and desolder the female plug off it. Bend the pins on it straight. Then go to a junkyard and find a car where the male ECU plugs plug into your ECU of choice, and cut them off. Then you find the ECU pinout for your 5 speed Corolla ECU, and the pinout for the 2zz ECU you chose, and match up the names of the wires and solder them together. It ends up looking something like this one I made to run my Prizm on a 2003 XRS ECU.

I should note that if you need to pass an emissions test, the 03 XRS ECU is best. It's the only 2zz ECU I've been able to get to set all the emissions monitors, though it should be possible on 00-02 Celica ECU's too. Also, I have all the 1zz and 2zz ECU pinouts, so whatever you need, let me know.

 

[Z3R0_F0UR]

So if I understand it correctly you’re making the 2z ECU compatible with the 1z harness? And then everything from the 1z harness will plug into the 2z?

 

[1998Prizm]

Yep. That way you can leave the entire 1zz harness and fuse box stock so trouble shooting is way easier. All the plugs on the 2zz engine are compatible with the 1zz harness, you just have to add 2 plugs for the lift solenoid and oil control valve.

 

[75aces]

Yep. Take the stock ECU (or any ECU that will plug into your existing harness) and desolder the female plug off it. Bend the pins on it straight. Then go to a junkyard and find a car where the male ECU plugs plug into your ECU of choice, and cut them off. Then you find the ECU pinout for your 5 speed Corolla ECU, and the pinout for the 2zz ECU you chose, and match up the names of the wires and solder them together. It ends up looking something like this one I made to run my Prizm on a 2003 XRS ECU. View attachment 395411

I should note that if you need to pass an emissions test, the 03 XRS ECU is best. It's the only 2zz ECU I've been able to get to set all the emissions monitors, though it should be possible on 00-02 Celica ECU's too. Also, I have all the 1zz and 2zz ECU pinouts, so whatever you need, let me know.

Where we’re you when I was on the hunt to make a TRD sc work without the 5th injector harness and piggy back ecu?

Great work by the way. In older threads like this, there was mention of putting resistors for the vvtl-I to function with the 1zz harness. Did you use any resistors?

 

[1998Prizm]

Where we’re you when I was on the hunt to make a TRD sc work without the 5th injector harness and piggy back ecu?

Great work by the way. In older threads like this, there was mention of putting resistors for the vvtl-I to function with the 1zz harness. Did you use any resistors?

Woah those trd superchargers are rare, did you ever get it working? Personally I'd run a 5th injector and control it with an Arduino or raspberry pi. Probably with inputs from the tach wire, throttle position sensor, fuel trims, and a wideband.

As for resistors, I didn't need any. VVTL-I is controlled by a positive wire and a ground wire coming from the ECU, I just wired it directly there. Same with the oil control valve, straight to the OCV pin on the ECU. You also need switched 12v to the IGSW pin, I learned that the hard way.

 

[75aces]

Woah those trd superchargers are rare, did you ever get it working? Personally I'd run a 5th injector and control it with an Arduino or raspberry pi. Probably with inputs from the tach wire, throttle position sensor, fuel trims, and a wideband.

As for resistors, I didn't need any. VVTL-I is controlled by a positive wire and a ground wire coming from the ECU, I just wired it directly there. Same with the oil control valve, straight to the OCV pin on the ECU. You also need switched 12v to the IGSW pin, I learned that the hard way.

All I got was the blower and the throttle body. I priced it out, and it was not feasible. The hard part to source, was the piggyback. As the only one that worked, was the Greddy e-manage blue.

The blower cost me $1200. I never sorted it and just included it in a sale of a mr2 spyder. No idea if the buyer of the mr2 spyder ever used it.

 

[Z3R0_F0UR]

Hey, I've done that exact swap. A 03 Matrix ECU or 00-01 Celica ECU will be better. For wiring, don't bother swapping out the harness. It's best to leave it completely stock and build an adapter. I have all the wiring diagrams you need. I have been working on a full DIY guide on the entire swap, I'll polish it off and post it soon.

So my dad thinks that wiring the ECU like that is a terrible idea is there any particular reason not to use the 2z engine harness? That way it all plugs into the engine and ecu no extra wires or anything? I’d rather keep the 1z harness that way the car functions the same and I don’t have to make a hybrid harness

 

[75aces]

To use the 2zz wiring harness, you’ll have to do a lot of work. The dash will have to come out for sure. Engine will be removed, so you’ll have the access on the firewall. Steering wheel has to be removed. Too much work compared to a hybrid jumper.

 

[1998Prizm]

So my dad thinks that wiring the ECU like that is a terrible idea is there any particular reason not to use the 2z engine harness? That way it all plugs into the engine and ecu no extra wires or anything? I’d rather keep the 1z harness that way the car functions the same and I don’t have to make a hybrid harness

Using the 2zz harness, you would have to adapt a whole bunch of plugs to get the engine harness to communicate with the body harness. You would also have to construct your own fuse and relay panel or do a ton of custom wiring to get it functional with the Prizm fuse box.

If you leave the 1zz wiring harness in place, you only have to adapt 4 plugs to connect the 2zz ECU to the existing harness. The existing 1zz wiring harness plugs into the 2zz engine itself just fine, almost every single plug is the same between the engines. If you want to avoid wiring all together, there's a company called Panic Made that sells the ECU and harness adapter for $1,400. If you PM me, I might be able to make the adapter you need for a lot less than that.

 

[Z3R0_F0UR]

Using the 2zz harness, you would have to adapt a whole bunch of plugs to get the engine harness to communicate with the body harness. You would also have to construct your own fuse and relay panel or do a ton of custom wiring to get it functional with the Prizm fuse box.

If you leave the 1zz wiring harness in place, you only have to adapt 4 plugs to connect the 2zz ECU to the existing harness. The existing 1zz wiring harness plugs into the 2zz engine itself just fine, almost every single plug is the same between the engines. If you want to avoid wiring all together, there's a company called Panic Made that sells the ECU and harness adapter for $1,400. If you PM me, I might be able to make the adapter you need for a lot less than that.

New to the site and am struggling to find where I can pm you lol

 

[75aces]

New to the site and am struggling to find where I can pm you lol

Upper right hand corner. Then click on your avatar. Conversations is DM or PM.

 

[Z3R0_F0UR]

Okay so I found this ecu on marketplace , no idea if it’s the right year or right plugs so maybe someone can help me out? I think it’s a good deal because other ECUs are like 250$+
Also I found a 2zz and it’s on its way!

 

[1998Prizm]

That one is perfect. It's from a 2003 Matrix XRS. 6200 lift point and 8250 rev limit. Whatever you do, don't get one that ends in 0Z110. Those have a way higher lift point.

 

[75aces]

That looks like a 04 matrix xrs. I may be mistaken, but the 04 can’t be written. Have a 05 corolla xrs ecu with ronie tune on it.

 

[1998Prizm]

89661-01040 2003 Matrix 6200 lift point no air pump
89661-0Z110 2004 Matrix 6700 lift point & air pump
89661-02C50/89661-02F80 2005 Matrix 6700 lift point, air pump, & immobilizer.

The 05 can be flash tuned, but you would need the immobilizer module, key, and ECU from the same Matrix to get it working in an 8th gen. I'm currently working on getting mine running on the 05 ECU but it's a pain. The 03 Matrix ECU is the best and easiest IMO.

 

[75aces]

89661-01040 2003 Matrix 6200 lift point no air pump
89661-0Z110 2004 Matrix 6700 lift point & air pump
89661-02C50/89661-02F80 2005 Matrix 6700 lift point, air pump, & immobilizer.

The 05 can be flash tuned, but you would need the immobilizer module, key, and ECU from the same Matrix to get it working in an 8th gen. I'm currently working on getting mine running on the 05 ECU but it's a pain. The 03 Matrix ECU is the best and easiest IMO.

My bad I was mistaken.

 

[1998Prizm]

All the ECU stuff is super confusing. I've been compiling all the info I have on it as well as ECU pinouts I've put together. When it's done I'll post about it here.