2jz NA-T with Greddy piggyback Coilpack Conversion?

[edviss]

Hi All,
 

I am currently running 2JZ NA-T with Greddy piggyback.

Is there a way of converting 2jz GE ECU+Greddy Piggiback to Coilpacks?

 

Thanks,

Ed

[evinX]

Think if your auto you need to use a TT auto ECU and if manual, TT 6 manual ECU for the coilpack firing sequence

[edviss]

53 minutes ago, evinX said:

Think if your auto you need to use a TT auto ECU and if manual, TT 6 manual ECU for the coilpack firing sequence

Yes i did see that people are using GTE ECU for coilpack conversion. 

The problem i am currently having is that my car is currently tuned on 2jz GE ECU+Piggy, unless i change to GTE ecu and then plug in Piggy on top.

I am wondering if Greddy piggyback can handle firing sequence. 

[Style]

99% sure the answer is no. You'll need at least a GTE ECU but it'll be far easier to get a standalone.

[edviss]

I have just spent hours of researching and yes i will have to go with GTE ECU for coilpacks and it is pretty easy to install them and pin them. 

i will plug my greddy piggyback on gte ecu, but that will have to get remapped though, due to coilpacks and injectors. 

[TRD-1]

22 hours ago, edviss said:

I have just spent hours of researching and yes i will have to go with GTE ECU for coilpacks and it is pretty easy to install them and pin them. 

i will plug my greddy piggyback on gte ecu, but that will have to get remapped though, due to coilpacks and injectors. 

Yes, the Gte ecu runs on 440cc injectors and different fuel maps to the NA ecu, so fit in the Gte ecu and get the piggyback re-mapped.

To get the Gte ecu working u will also need to run the other sensors for it Map and IAT and a few other changes, if you are NA Auto the ecu will control the autobox but you will get 2 gearbox error codes 1...for the autobox temperature sensor which isn't fitted to NA autoboxes (u can find the right sensor and fit it in the cooler line to fix this or use a resistor) and 1.... for the line pressure solenoid (u might be able to find a suitable resistor for this but Im not sure, a alternative would be to fit a GTE autobox with torque converter).

Edited January 7, 2021 by TRD-1 (see edit history)

[edviss]

9 hours ago, TRD-1 said:

Yes, the Gte ecu runs on 440cc injectors and different fuel maps to the NA ecu, so fit in the Gte ecu and get the piggyback re-mapped.

To get the Gte ecu working u will also need to run the other sensors for it Map and IAT and a few other changes, if you are NA Auto the ecu will control the autobox but you will get 2 gearbox error codes 1...for the autobox temperature sensor which isn't fitted to NA autoboxes (u can find the right sensor and fit it in the cooler line to fix this or use a resistor) and 1.... for the line pressure solenoid (u might be able to find a suitable resistor for this but Im not sure, a alternative would be to fit a GTE autobox with torque converter).

Hi Mate,
 

Thank you for detailed explanation.

I have picked up GTE ECU on ebay yesterday, still looking for GTE MAP sensor. 

I have also picked up GTE Intake which i will run with GE to GTE adapter, i know its not ideal but will do the trick for now. GTE rocker covers will go on as well, so it looks nicer ascetically and dizzy cap.

I believe IAT is on GTE intake? Screwed on, 2 pin pug?

As i am running W58 5 speed, i can ignore auto box issues

I believe oem 440cc injectors from GTE wont work as they are side feed. I am looking in to getting 550cc top feed injectors.  I was reading somewhere that you need resistors for 550cc?

Regarding coilpack conversion, I have decided to go with smart coils from yaris. I will start working on wiring loom shortly, looks pretty simple to plug in to GTE ECU and looks cleaner without igniter. 

 

[TRD-1]

Yes IAT is a 2 pin and is fitted on the Gte intake.

Depending on how ur fitting a Gte intake, when I fitted mine I had the lower runners from a Gte re-welded to fit a Ge head so I also used the Gte 440c injectors with the Gte fuel rail so all the intake and fuel system including throttle body was from a Gte.  I then used VVti coils with a VVti igniter and a non vvti Gte ecu....But my car wasn't a Supra it was a NA Aristo.

550c injectors I don't know about you would have to reserach further.

[Mike2JZ]

On 1/7/2021 at 8:20 PM, edviss said:

Hi Mate,
 

Thank you for detailed explanation.

I have picked up GTE ECU on ebay yesterday, still looking for GTE MAP sensor. 

I have also picked up GTE Intake which i will run with GE to GTE adapter, i know its not ideal but will do the trick for now. GTE rocker covers will go on as well, so it looks nicer ascetically and dizzy cap.

I believe IAT is on GTE intake? Screwed on, 2 pin pug?

As i am running W58 5 speed, i can ignore auto box issues

I believe oem 440cc injectors from GTE wont work as they are side feed. I am looking in to getting 550cc top feed injectors.  I was reading somewhere that you need resistors for 550cc?

Regarding coilpack conversion, I have decided to go with smart coils from yaris. I will start working on wiring loom shortly, looks pretty simple to plug in to GTE ECU and looks cleaner without igniter. 

 

Couple of things for you to keep in mind:

a) 550cc top feed injectors won't work with a GTE ECU, in the sense that the mapping for the fueling will be all wrong, as the ECU is designed to work with 440's. The UK spec 550's are low impedance and side feed, so again won't work for you without using some sort of electronics to modify how the fuel is being delivered. You easiest bet to make this work hassle free is to use the OEM 440's, but then you will need to figure out how to use sidefeed injectors with your setup. I've seen a man on the internet use RB26 440's that are top feed, but can't comment how these actually ran the engine as I've never tried it, and you will need a resistor pack for these injectors to. 

b) When you wire up yaris coils you will need to trick the ECU into receiving an ignition verification signal, that it would normally receive from the igniter. Otherwise you will get a bunch of errors. There are guides online on how you can do this.

c) My biggest recommendation for you would be to stop what you are doing though. Running an NA-T off a GTE stock ecu is pretty shit in the grand scheme of things, it full of compromises and a bit of a false economy. trust me been there and got the t-shirt. In this day and age, I think you are mad not to buy a cheap ECUMaster Classic standalone ecu, wire it into your existing loom. You can delete the dizzy whilst retaining your trigger electronics, run any coil or injectors you want and have full control of the whole package, rather than being at the mercy of the stock ECU on a frankenstein setup. With the way this setup seems like its going a standalone will be the better fit for what you want to achieve rather than trying to bend a stock ECU into working with stuff it wasn't designed to do. 

[mellonman]

I always thought you needed the TT oil pump with trigger sensor to get coil packs. 

I be their are plenty more options now

 

[edviss]

3 hours ago, Mike2JZ said:

Couple of things for you to keep in mind:

a) 550cc top feed injectors won't work with a GTE ECU, in the sense that the mapping for the fueling will be all wrong, as the ECU is designed to work with 440's. The UK spec 550's are low impedance and side feed, so again won't work for you without using some sort of electronics to modify how the fuel is being delivered. You easiest bet to make this work hassle free is to use the OEM 440's, but then you will need to figure out how to use sidefeed injectors with your setup. I've seen a man on the internet use RB26 440's that are top feed, but can't comment how these actually ran the engine as I've never tried it, and you will need a resistor pack for these injectors to. 

b) When you wire up yaris coils you will need to trick the ECU into receiving an ignition verification signal, that it would normally receive from the igniter. Otherwise you will get a bunch of errors. There are guides online on how you can do this.

c) My biggest recommendation for you would be to stop what you are doing though. Running an NA-T off a GTE stock ecu is pretty shit in the grand scheme of things, it full of compromises and a bit of a false economy. trust me been there and got the t-shirt. In this day and age, I think you are mad not to buy a cheap ECUMaster Classic standalone ecu, wire it into your existing loom. You can delete the dizzy whilst retaining your trigger electronics, run any coil or injectors you want and have full control of the whole package, rather than being at the mercy of the stock ECU on a frankenstein setup. With the way this setup seems like its going a standalone will be the better fit for what you want to achieve rather than trying to bend a stock ECU into working with stuff it wasn't designed to do. 

Mike,

Thank you for detailed explanation.

2jz is abit new for me as i was always 300zx vg30dett guy haha.

The only reason i wanted to go GTE ecu as I have greddy piggyback currently plugged in, and bigger injectors can get tuned using that and after watching “supravworld” diy video it all sounded pretty easy.

i have just checked Ecumaster ecu and thats like £650. Not bad at all. 

i guess i can sell gte ecu+Greddy and then just add a little for a proper ecu and tune.

[Mike2JZ]

1 hour ago, edviss said:

Mike,

Thank you for detailed explanation.

2jz is abit new for me as i was always 300zx vg30dett guy haha.

The only reason i wanted to go GTE ecu as I have greddy piggyback currently plugged in, and bigger injectors can get tuned using that and after watching “supravworld” diy video it all sounded pretty easy.

i have just checked Ecumaster ecu and thats like £650. Not bad at all. 

i guess i can sell gte ecu+Greddy and then just add a little for a proper ecu and tune.

If you are happy to use greddy emanage then it will work like you suggested. However the implementation is a bit messy, so there will be some issues that you may run into along the way. Wrong ecu for the engine, heavily modified engine setup + trying to patch it together using oldschool controller which will "fight" against the stock ECU at times. My advice would be to try and keep it simple to save yourself on unneeded ballache. 

But if you are looking for a good learning experience then you can always go ahead with it and see how it goes. 

Any standalone you can buy these days is more the enough to run a 2JZ and give you the flexibility to run almost any hardware combo you like without worrying about keeping anything from stock ecu happy. I named ECUMaster as they are the cheapest, but compared to a greddy emeanage piggyback it is lightyears ahead in terms of control & features. 

If tuning is what you are interested in and you want to learn more, then again a basic standalone that has a nice UI, modern support, modern control strategies, good logging features etc etc will be much more benefitial for your learning. As nice as eManage was for the the early 2000's, it's very limited as to what you can see and change, and there is some guess work as to how the stock ECU may react. When I did the eManage thing, I was happy with the result but ultimately was left wanting more from it. 

Edited January 9, 2021 by Mike2JZ (see edit history)

[edviss]

17 hours ago, Mike2JZ said:

If you are happy to use greddy emanage then it will work like you suggested. However the implementation is a bit messy, so there will be some issues that you may run into along the way. Wrong ecu for the engine, heavily modified engine setup + trying to patch it together using oldschool controller which will "fight" against the stock ECU at times. My advice would be to try and keep it simple to save yourself on unneeded ballache. 

But if you are looking for a good learning experience then you can always go ahead with it and see how it goes. 

Any standalone you can buy these days is more the enough to run a 2JZ and give you the flexibility to run almost any hardware combo you like without worrying about keeping anything from stock ecu happy. I named ECUMaster as they are the cheapest, but compared to a greddy emeanage piggyback it is lightyears ahead in terms of control & features. 

If tuning is what you are interested in and you want to learn more, then again a basic standalone that has a nice UI, modern support, modern control strategies, good logging features etc etc will be much more benefitial for your learning. As nice as eManage was for the the early 2000's, it's very limited as to what you can see and change, and there is some guess work as to how the stock ECU may react. When I did the eManage thing, I was happy with the result but ultimately was left wanting more from it. 

Mike,

Decision have been made and I will hold fire on gte+greddy piggyback and will save up to get ECUMaster.

Do you work at SRD Tuning as per your title ? Would you guys be able to tune my na-t with ECUMaster?

[Mike2JZ]

46 minutes ago, edviss said:

Mike,

Decision have been made and I will hold fire on gte+greddy piggyback and will save up to get ECUMaster.

Do you work at SRD Tuning as per your title ? Would you guys be able to tune my na-t with ECUMaster?

Cool good decision, end result will be nicer for sure. 

There are a few members here with threads on how they wired up their ECUMasters if you want some inspiration / tips on what to do. 

Yes I do, and yes I can tune it. If you have any questions regarding wiring, sensors etc etc then feel free to shoot me a message and I can go through some of the details. 

[Josh42]

1 hour ago, Mike2JZ said:

Cool good decision, end result will be nicer for sure. 

There are a few members here with threads on how they wired up their ECUMasters if you want some inspiration / tips on what to do. 

Yes I do, and yes I can tune it. If you have any questions regarding wiring, sensors etc etc then feel free to shoot me a message and I can go through some of the details. 

Great to see the technical insight you’ve provided in this thread, Mike. It makes for really interesting reading for other NA-T people like me. Thanks!

[AC93]

I'd do what Mike suggests, his knowledge and hands on experience is 

 

Luckily for you I have a brand new ECU Master Black with loom and Bosch LSU4.9 for sale 

With a standalone you can monitor the engine better and run additional temperature and pressure sensors for fuel/oil/water etc.