3GENJDM: Mr2 4Gen

[jrmr291]

Hello everyone,

i have install a ST215 caldina in my Mr2 and i'm almost completed except the wiring harness which MR220V will have doing soon i hope but i need to get the money first lol. i have tons of pics that i take during the process of install you can check them out here in MR2 4Gen pictures by juniboy787 - Photobucket.. in there your will get a good idea of what u need to make the swap a snap. it's really simple to do.

Thanks

[stewart]

Are you at roosevelt roads ?

[CJMR2T]

I dont think your going to find much help with it as not many (if any) have done a Gen 4 swap into a TWO....

I can tell you this much although probably not much help really is the plugs in the first pic are going to be signal to and from the dash like oil pressure, temp, tach, etc....

The second pic, the plug I cant begine to think of what it is, the VSV is proably for something like fuel pressure up system or emission control like charcoal canister purge, etc...

The third pic, i have no idea..

The forth pic, I would think its the heater control valve VSV plug just because of its location.. Two's do not have this being that our's are cable controlled from the climate control unit in the dash. Again my guess is that its the heater control valve VSV plug becaues of its location. On most front engine toyotas, the first thing to come out of the harness on the engine side of the firewall is the heater control valve VSV plug/wiring.. I'd bet that if you trace the wires from it, they probably go back to the plugs in question in the first pic.

Fifth pic, goes back to the first pic...

Best thing I can say is start looking for matching wire colors and gauges and then start checking for continuity and you'll get a much better idea of whats what...

[Bak@EMSPowered]

Contact Donny at Side2Side Racing. He can make it a plug'n'play setup for you so that you don't have to spend countless hours trying to hack up your harness and still end up with a car that doesn't run. You can reach him at kameleon@side2sideracing.com

[jrmr291]

i already talk to mr220v about doing my harness. i'm waiting to get the money to send it.

[Bak@EMSPowered]

Originally Posted by jrmr291

i already talk to mr220v about doing my harness. i'm waiting to get the money to send it.

You're on your way to a running Gen4

[328FTW]

Originally Posted by CJMR2T

I dont think your going to find much help with it as not many (if any) have done a Gen 4 swap into a TWO....

You'd be surprised there are a couple mk1.5 kicking around where I am undocumented. I know a guy running a mitsi sigma with a toyota 1800 in it....it's crap but none the less he did it. There is a twin engine toyota around here as well haven't seen it for about 3 years but he had 2 engines in the back driving an axle each with 4 wheels at the back, was a bit wtf but it went well. They poke around twobrutal and here but don't really post just info gather. You never know who could be reading your thread

Getting back to topic a bit I don't think it is that hard a swap at all, the 3sgte has fairly tame wiring. If you use mr220v it isn't as much an issue but the 3sgte, 3sge, beams, 3vzfe all that kinda stuff are kinda "dumb" when it comes to wiring they don't really care about what the transmission is doing, no fly by wire, no ecu integrated into the body loom they only care about power to the ecu, coil setup and the COP all hooked up right and in some cases the speed sensor. The water/fuel plumbing is normally a casual day job once you figure it out and sometimes plug n play. Compared to some bmw engines or new VW stuff with traction control it's a godsend to be able to have something so comparatively simple.

[jrmr291]

Originally Posted by baktasht

You're on your way to a running Gen4

Ohh yeahhh can wait to get her finish. i'm anxious to drive her again. here is a engine pic ..

[Bak@EMSPowered]

Looking good. Try and use the stock gen4 heatshield over the exhaust manifold, if you don't have it, wrap that hotpipe really well, otherwise you will soak up quite a bit of heat into the IC pipes from the exhaust manifold.

[jrmr291]

Originally Posted by baktasht

Looking good. Try and use the stock gen4 heatshield over the exhaust manifold, if you don't have it, wrap that hotpipe really well, otherwise you will soak up quite a bit of heat into the IC pipes from the exhaust manifold.

it came with it but i wanna to inspect the exhaust. and when i was taking the screw out the were seal with the manifold so i had it to rip it off.. i still got it but i dont know if is gonna work the screw broke off because they were seal.. so i guess my option will be to wrap it up.

[PETC]

That's what she said.

[mr220v]

Originally Posted by 328FTW

If you use mr220v it isn't as much an issue but the 3sgte, 3sge, beams, 3vzfe all that kinda stuff are kinda "dumb" when it comes to wiring they don't really care about what the transmission is doing, no fly by wire, no ecu integrated into the body loom they only care about power to the ecu, coil setup and the COP all hooked up right and in some cases the speed sensor. The water/fuel plumbing is normally a casual day job once you figure it out and sometimes plug n play. Compared to some bmw engines or new VW stuff with traction control it's a godsend to be able to have something so comparatively simple.

The 4cyl and earlier 6cyl ecus are less sensitive to not having the automatic transmission. The 1mz's can be purchased in mt configuration up until 1999. It's the vvti mz's that get to be a problem. The rumor is that with the new 2gr ecu's, the error codes for the transmission go away. So no reason to run that hot set of resistors.

I think with all toyota ecu's, the difference is whether the solenoids are driven directly by the ecu, or by a separate transmission control module. That's why the AT beams and gen4 3sgte ecus don't kick out codes.

The newer features like drivebywire, and canbus, are not that big of a deal to integrate. I did a harness for a 1994 firebird with a 2007 silverado engine this summer. It actually has 2 obd2 data lines. High speed and lowspeed. In the case of the firebird, I simply ignored the lowspeed side as I wasn't going to be using any of the things that run on it, and the highspeed was used to run the main obd2 port. There were a few other modules that were integrated into this bus, kinda like scsi, but I simply left these out as well. I left out the transmission control module, as this car was manual, and the body control module served no purpose at all. The biggest trick was getting the gauges working right.

There's the 2gr, which is what I'm wiring for right now, but aside from this motor, the current toyota 4cyl motors are not all that interesting. The 07 silverado motor is 400hp with 400ft/lbs. With a cam, you could be pushing 5-600hp.

[jrmr291]

ok i just added some new pics to the folder and i painted the almost evertyhing Old Ford Blue... so what u guys think give me your opinions...


anyways i open up the M/T from the one that came with the caldina and it has a what i think it is a LSD which to my surprise it looks the same as a LSD from the MR2 that i have but it has different number mark in it... so i took some pics and would like to know if i could use it. My guess is i do but want to make sure. so mr220v i be contacting you about the harness soon X-mast was hard on me i be shipping it and giving u a call when i ship it..

Now i found a coolant leak in the inlet neck.... i took everything out clean everything put a brand new thermostats. seal it with a little of High Temp RTV silicone i took the water outlets that goes to the turbo put a brand new o-ring seal everything back nice a tight and now is leaking... so my guess is because i have not warmer up... non of those components hasn't seal correctly??? need help on this...

[Lindsley]

I have completed my Gen IV into my mr2 and it works great. Just one observation, I am not boosting pass 8lbs. Does the Gen IV ECU require the signal from the Speedometer to open the VSV. My Speedo is not working presently

[jrmr291]

Originally Posted by Lindsley

I have completed my Gen IV into my mr2 and it works great. Just one observation, I am not boosting pass 8lbs. Does the Gen IV ECU require the signal from the Speedometer to open the VSV. My Speedo is not working presently

what year is your MR2?? do you have pics?? i envy you right now lol.... going back to your question i don't think the ecu needs the signal from the speedometer. and from i have read i think the boost level is 8psi stock.. u may want to dig a little bit..

[PETC]

I'm going to go ahead and say YES on this one because I had a similar problem with my gen 3 when my speedo didn't work.

[Lindsley]

The waste gate pressure is 8 Lbs but the stock is 14Lbs.
It what obtains to the 3rd gen applies to the 4th gen then it needs the speedo signal to get the vsv to open.

Originally Posted by jrmr291

what year is your MR2?? do you have pics?? i envy you right now lol.... going back to your question i don't think the ecu needs the signal from the speedometer. and from i have read i think the boost level is 8psi stock.. u may want to dig a little bit..

[Lindsley]

Here are some pics on my Caldina Installed Motor. The Car is a 1996 JDM

[jrmr291]

Originally Posted by Lindsley

Here are some pics on my Caldina Installed Motor. The Car is a 1996 JDM

Nice... would like two know how close is the throttle cable of the exhaust manifold? and why you didn't went in front of the engine as the cable may burn bc of the heat... or buy the N/A cable which is longer.. is your MR2 was previously a Turbo or N/A??

[Lindsley]

Originally Posted by jrmr291

Nice... would like two know how close is the throttle cable of the exhaust manifold? and why you didn't went in front of the engine as the cable may burn bc of the heat... or buy the N/A cable which is longer.. is your MR2 was previously a Turbo or N/A??

It was NA before so the cable is not against the Exhaust Cable. The intake manifold allows for the installation to be as is. It places less strain on the cable.