Syvecs NMS Toyota Corolla GR Plug and Play ECU Kit Owner’s Manual

Syvecs NMS Toyota Corolla GR Plug and Play ECU Kit

Product Specifications

• Manufacturer: SYVECS LTD
• Model: Corolla GR Plug-in Ecu
• Version: V1.1

Product Usage Instructions

Installation Steps

1. Remove the Negative Terminal from the battery on the Vehicle for safety.
2. Open the front bonnet and unplug the OEM Engine ECU connectors.
3. Unbolt the Factory Engine ECU and remove it from the engine bay.
4. Remove the Factory ECU brackets and mount them on the Syvecs Corolla ECU.
5. Mount the Syvecs Corolla ECU in the OEM Location.
6. Remove the OEM Lambda Sensor and Replace it with NTK Lambda.
7. Connect the Lambda Loom from the 26Way connector on the back of the Corolla ECU into the NTK lambda.
8. Remove the glove box compartment and locate the blue joiner connector with 6 wires connected.
9. Unplug the blue connector and plug in the Syvecs adaptor carefully.
10. Connect the Red and Black wires from the Syvecs box to the 12v and Ground on the OBD2 connector.
11. Secure the Syvecs Corolla Dash box and refit the panels.
12. Re-Connect Battery Terminals.
13. Run the Ethernet cable into the Cabin bay for communication with the ECU.

Calibration Switching

• Traction Control – Expert Mode: The OEM traction button changes the TCSelect item in Scal when Expert mode is enabled. Calibrators can adjust this under Calibration Switches – Traction Control – Traction Control Gain Tuning.
• Custom Features – Flex Fuel: Flex-fuel is supported on the Syvecs Corolla ECU. Wiring the fuel composition Sensor into the OEM Maf connector is recommended. The MAF connector connects to input AN11 on the Syvecs ECU, with 5v and Ground present on the connector.
• Sequential Gearbox Wiring: The Syvecs Corolla GR ECU has an additional I/O connector at the back, with Pinouts provided for reference.

FAQ

• Q: How do I enable Expert Mode for Traction Control?
• A: To enable Expert Mode, use the OEM traction button to change the TCSelect item in Scal. Refer to Calibration Switches – Traction Control – Traction Control Gain Tuning for further adjustments.
• Q: How should I wire Flex Fuel for the Syvecs Corolla ECU?
• A: We recommend wiring the fuel composition Sensor into the OEM Maf connector, ensuring a direct connection to input AN11 on the Syvecs ECU with 5v and Ground present on the connector.

Corolla GR Plug-in Ecu

• Designed to work with Toyota Corolla GR
• This document is intended for use by a technical audience and describes some potentially hazardous procedures. Installations should be carried out by competent persons only.
• Syvecs and the author accept no liability for any damage caused by the incorrect installation or configuration of the equipment.
• Please Note that due to frequent firmware changes certain windows might not be the same as the manual illustrates. If so please contact the Syvecs Tech Team for Assistance. Support@Syvecs.com.

Installation

1. Remove the Negative Terminal from the battery on the Vehicle to be extra safe with electrical components, this is found in the boot/trunk of the car under the mat.
2. Open the front bonnet and unplug the OEM Engine Ecu connectors as shown below.
3. Unbolt the Factory Engine ECU and remove it from the engine bay.
4. Remove the Factory ECU brackets which are shown below in yellow, these are needed for the Syvecs Corolla ECU.
5. The Factory ECU will then look like the below and can be stored away safely as no longer used.
6. Mount the factory brackets as shown below on the Syvecs Corolla Ecu.
7. Plug in the 26Way connector into the back of the Syvecs Corolla Ecu and then mount it back in the OEM Location as shown below.
8. Remove the OEM Lambda Sensor and Replace it with NTK Lambda. Connect the Lambda Loom from the 26Way connector on the back of the Corolla ECU into the NTK lambda.
9. Head inside the car and remove the glove box compartment, this is done by removing the 2 screws in the bottom shown with the Red arrow.
10. Next, look up inside the area open and you will find a blue joinerconnector. IMPORTANT: There are 2 blue connectors..You need the one with only 6 wires connected as shown below.
11. Unplug the blue connector by lifting the tab shown below. DO NOT THROW AWAY THE BLACK CONNECTOR
12. Plug in the Syvecs adaptor to the blue connector carefully and then connect the Red and Black wires from the Syvecs box to the 12v and Ground on the OBD2 connector as shown below
    • Pin16 (OEM Black Wire) – 12v
    • Pin4 (OEM White/Black Wire) – Ground
    • LOOKING INTO FRONT OF OBD2 CONNECTOR
    • You will need to T into these wires
13. Secure the Syvecs Corolla Dash box and then refit the panels.
14. Re-Connect Battery Terminals.
15. Run the Ethernet cable into the Cabin bay to allow communications with the ECU.
16. Proceed to Syvecs Help videos and Syvecs Manual on the Website.

Calibration Switching

• The OEM Cruise Lever can also be used for calibration Switching or for Traction Control adjustments in the Scal software. After the engine is running the tacho will show the position on the RPM. Call = 1000rpm, Cal2 = 2000rpm
• When changing Calibration the Speed Limit will be displayed on the dash which illustrates the Flex fuel content percent.
• + RES = Cal Up / Cruise Speed Up
• – SET = Cal Down / Cruise Speed Down
• CANCEL = Cal Override / Rolling Antilag / Overboost Button
• CRUISE ON = Cruise On Switch, Activates Cruise Control

Traction Control – Expert Mode

• The OEM traction button will change the TCSelect item in Scal when Expert mode is enabled.
• This will as standard in the base map cause the Syvecs Traction control strategy to be disabled.
• Calibrators can change this under Calibration Switches – Traction Control – Traction Control Gain Tuning.

Custom Features – Flex Fuel
Flex fuel is supported on the Syvecs Corolla Ecu, we recommend wiring the fuel composition Sensor into the OEM Maf connector as the MAF is not used with Syvecs Ecu. The Maf connector has a direct connection to input AN11 on the Syvecs ECU as well 5v and Ground present on the connector. The FuelComp % will be shown on the OEM Dash when changing the Calibration in the Cruise Speed Window

• Wire the Flex Fuel as below
• vOut = Pin1 on Maf (AN11)
• Gnd= Pin2 on Maf (SensorGnd)
• VCC = Pin3 on Maf (5vOut)
• Pin 4 is a Spare thermocouple input AN24

Sequential Gearbox Wiring

• The Syvecs Corolla kit fully supports sequential gearbox control, if you are planning to run with a pneumatic paddle shift setup then it will need a flag enabling on the ECU which is an extra cost.
• If its just a load sensor and gear barrel then this is all enabled with the standard Plug in license using our closed-loop gear cut and blip strategies.
• The load cell sensor should ideally be a resting 2.5v device and then move around this rest voltage depending on the direction of the load applied.
• On the additional 26way header you can find spare inputs and outputs which can be used for gear position sensor, load cell, paddles, and compressor control.

Additional I/O – 26Way Header

• The Syvecs Corolla GR ECU has an additional I/O connector at the back of the Ecu.
• Pinouts are below:

1. Ground
2. K-Type –
3. K-Type +
4. GDI4-
5. GDI4+
6. Out1 – Available for spare output if OEM Denso is not used (Assigned toSlave1Out1) in Scala
7. Vbat – 12v Supply to power ECU on a bench or 12V Out for NTK LambdaHeater (Yellow Wire)
8. Fuel11 – Spare Output
9. Rs232RX
10. Lam1v – Grey Wire on L2H2 NTK Lambda
11. Lam1i – White wire on L2H2 NTK Lambda
12. LamGnd – Black wire on L2H2 NTK Lambda
13. Vbat-– 12v Supply to power ECU on a bench or 12V Out for NTK LambdaHeater (Yellow Wire)
14. 5v Regulated supply
15. Rs232TX –
16. Can2L – Spare Canbus for External I/O Expander like X4/X10/X20 or forAftermarket Dashboard
17. Can2H – Spare Canbus for External I/O Expander like X4/X10/X20 or forAftermarket Dashboard
18. Can3L – Spare Canbus for External I/O Expander like X4/X10/X20 or forAftermarket Dashboard
19. Can3H – Spare Canbus for External I/O Expander like X4/X10/X20 or forAftermarket Dashboard
20. Out4 – Spare Output (Slave1Out4)
21. AN01 Input
22. S1AN05 Input (slave1AN05)
23. LanRX- Orange/White
24. LanRX+ White/Orange
25. LanTX- Green/White
26. LanTX+ White/Green

Support@Syvecs.com.

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