1ZZ 2ZZ AEM EMS-4 Stand Alone ECU Kit
MWR’s AEM EMS4 kit is the most powerful tuning tool available for your 1ZZ or 2ZZ powered Toyota and the price for this plug n play kit is unbeatable.
This kit fits:
2000-05 Celica GT (1ZZ) Manual and Automatic
2000-02 Celica GTS (2ZZ) Manual and Automatic
2003-2005 Celica GTS (2ZZ) non-US models with cable throttle (w- T3 3-row ECU connectors)
2003-2005 Celica GTS (2ZZ) US/Canada models with E-throttle (w- T4A 4-row ECU connectors)
2000-05 MR2 Spyder (MR-S) – Manual and SMT transmission all
2003-04 Corolla/Matrix/Vibe (1ZZ) Manual and Automatic
2003-06 Corolla/Matrix/Vibe (2ZZ) Manual and Automatic
2000+ non-US market Corolla models equipped with 1ZZ-FE, 2ZZ-GE, 3ZZ-FE and 4ZZ-FE engine and 3-row ECU connectors. This includes Runx, Sportivo, TS and Compressor models.
Full tuning control of fuel, ignition timing, idle speed, VVT, VVL.
Additional outputs configurable to control boost level, radiator fan, fuel pump, nitrous, shift light, water/meth injection, etc.
Adjustable rev limiter and launch limiter.
High resolution datalogging capability with or without laptop connected.
Closed loop fuel control using stock O2 sensor or aftermarket wideband O2 sensor (sold separately and strongly recommended.)
Fully configurable knock sensing and control.
Very flexible- easily tune for larger injectors, bigger cams, stroker, high compression, ITBs, supercharger, turbo, nitrous… you name it!
MAF meter may be removed (optional- you just need to add an air temp sensor) so no more limitations caused by maxing out the MAF at high boost levels. You can also make your air inlet and intercooler pipes any size you prefer.
MWR base tune provided- we’ll provide the best start-up map for your application at no charge. This is a good base map only so an experienced tuner is needed to get the system 100% dialed in for your car.
Stock ECU remains in place to control stock functionality like coolant temp gauge and air conditioning. Also allows you to reconnect stock ECU quickly for diagnostic (OBD) or emissions legality purposes. The EMS (like all aftermarket ECUs) is not emissions legal and should not be used on public roads where emissions equipment is required.
Works great for 2ZZ swaps, no additional 2ZZ ECU or adapter harness is required. Just add MWR VVL connector kit.
Installation takes only minutes- no soldering or custom wiring required for standard install. Full install and tuning instructions are provided.
Included in the kit:
Custom configured AEM EMS4 engine computer
MWR custom plug n play wiring harness
OEM quality 3-bar MAP sensor (made in Germany)
3 meter USB programming cord
Programming software is downloaded directly from AEM HERE at no charge
Tested on a stock 2003 Matrix XRS with only a cold air intake. Notice the huge increase in torque through the midrange thanks to optimized VVT and the advantage of engaging the VVL at 5700 rather than the stock ECU’s lazy 6200rpm. We also tested vs the later 2005-06 ECU with the 6800rpm VVL engagement. The results speak for themselves.
Tested on a stock 2000 Celica GTS automatic you can really see the optimized VVT/VVL settings doing their job. With the auto trans you can increase your rev limiter and shift the transmission manually for best acceleration. This tune is slightly more aggressive and you can really see the advantage of being able to optimize your fuel and ignition maps.
Tested on a stock 2000 MR2 Spyder with 1ZZ engine. Even without other engine modifications there is room to optimize fuel and spark and you can get a really healthy torque increase through the midrange thanks to optimized VVT. Add air intake, header, upgraded cams etc and the gains are even greater. Rev limiter can be increased a bit to broaden the power curve and help avoid unnecessary upshifts in autocross and road course applications.
MWR AEM EMS4 vs Power FC
MWR’s EMS4 is a far more powerful tuning tool. It has additional configurable outputs, does not rely on factory MAF, works with 1ZZ or 2ZZ, and is available for far more different car models. Planning a 2ZZ swap in the future? You’ll just need to add VVL connectors, no other wiring changes, adapters or different ECUs needed. It also includes the tuning cable and software at no additional cost. That said, the EMS4 is not a beginner’s tuning tool. The software has incredible depth and if you start tinkering with it your car may not run right. If you get the tune wrong you might damage your engine. That is the reality of a powerful tuning tool like the EMS4. Want more information so you can decide if the MWR EMS4 is for you? Please see the AEM support forums HERE and search YOUTUBE for a huge amount of information on AEM EMS systems and software.
If you wish to simply plug in a simple programmable ECU and you have a lightly modified 2000-02 Celica GTS manual, 2000-05 Celica GT manual or 2000-05 MR2 Spyder manual then the Power FC could be a better choice for you. It has far fewer features and the datalogit software is much simpler than the AEM software. Cost for the Power FC plus Datalogit is about the same as the MWR AEM EMS4 complete kit.
When submitting your order please tell us:
– Your car’s year and model
– Engine type and engine modifications
– NA, turbo or supercharger
– Injector size
– Car’s usage (street, drag, road race)
We will supply the best base map we have available. Remember, this is a start up map only so you must get it tuned in yourself!
For CA Proposition 65 Warning: Click Here
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