Syvecs LTD BMW N54 Engine Owner’s Manual
- June 9, 2024
- Syvecs LTD
Table of Contents
Syvecs LTD BMW N54 Engine
INTRODUCTION
This document is intended for use by a technical audience and describes
several 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
DESCRIPTION
| A| DESCRIPTION| CONNECTOR A|
---|---|---|---|---
| PART NUMBER| 4-1437290-0|
NOTES:| 34 Way – Key1|
Syvecs Description| Syvecs Pinout| Function|
PWR CTR OUT| A1| MAIN RELAY OUTPUT| Main Relay
H‐Bridge1 / SlaveOut1| A2| H-Bridge1| DBW
H‐Bridge2 / SlaveOut2| A3| H-Bridge2| DBW
H‐Bridge3 / SlaveOut3| A4| H-Bridge3| DI Pump
H‐Bridge4 / SlaveOut4| A5| H-Bridge4| Vano Intake LOW SIDE
H‐Bridge5 / SlaveOut5| A6| H-Bridge5| Vano Exhaust LOW SIDE
H‐Bridge6 / SlaveOut6| A7| H-Bridge6| ThermoStat!
H‐Bridge7 / SlaveOut7| A8| H-Bridge7| Spare Output
H‐Bridge8 / SlaveOut8| A9| H-Bridge8| Spare Output
FUEL1| A10| INJECTOR or PWM OUTPUT| Primary Injector 1
FUEL2| A11| INJECTOR or PWM OUTPUT| Primary Injector 2
FUEL3| A12| INJECTOR or PWM OUTPUT| Primary Injector 3
FUEL4| A13| INJECTOR or PWM OUTPUT| Primary Injector 4
FUEL5| A14| INJECTOR or PWM OUTPUT| Primary Injector 5
FUEL6| A15| INJECTOR or PWM OUTPUT| Primary Injector 6
FUEL7| A16| INJECTOR or PWM OUTPUT| Port Injector 1 / Spare Output
FUEL8| A17| INJECTOR or PWM OUTPUT| Port Injector 2 / Spare Output
PWM1 /FUEL9| A18| PWM OUTPUT| Port Injector 3 / Spare Output
PWM2 / FUEL10| A19| PWM OUTPUT| Engine Fan – 105hz
PWM3 / FUEL11| A20| PWM OUTPUT| Port Injector 4 / Spare Output
PWM4 / FUEL12| A21| PWM OUTPUT| Exhaust Flap / Port Injector 5
PWM5| A22| PWM OUTPUT| Fuel Tank Vent
PWM6| A23| PWM OUTPUT| Wastegate 1
PWM7| A24| PWM OUTPUT| Wastegate2
PWM8| A25| PWM OUTPUT| Port Injector 6 / Spare Output
IGN1| A26| CYL 1 IGNITION OUTPUT| IGN1
IGN2| A27| CYL 2 IGNITION OUTPUT| IGN2
IGN3| A28| CYL 3 IGNITION OUTPUT| IGN3
IGN4| A29| CYL 4 IGNITION OUTPUT| IGN4
IGN5| A30| CYL 5 IGNITION OUTPUT| IGN5
IGN6| A31| CYL 6 IGNITION OUTPUT| IGN6
PWRGND| A32| POWER GROUND| PwrGnd
PWRGND| A33| POWER GROUND| PwrGNd
PWRGND| A34| POWER GROUND| PwrGNd
| B| DESCRIPTION| CONNECTOR B|
| PART NUMBER| 3-1437290-7|
NOTES:| 26 Way – Key1|
PWRGND| B1| POWER GROUND| PWRGROUND
CAN2L| B2| |
---|---|---|---
CAN2H‐| B3| |
KNOCK| B4| KNOCK| External Loom
KNOCK 2| B5| KNOCK 2| External Loom
PVBAT| B6| CONSTANT 12V|
IVBAT| B7| 12v|
LAM1A| B8| Lamv / LamD1+/ LamLun1| Pin6 on LSU4.9 Connector
LAM1B| B9| Lami / LamD1‐ /LamIP1| Pin1 on LSU4.9 Connector
LAM1C| B10| LamLIA1| Pin5 on LSU4.9 Connector
LAM1D| B11| LamGND / LamLVM1| Pin2 on LSU4.9 Connector
LAM1HEATER| B12| LAMBDA HEATER| Pin3 on LSU4.9 Connector
IVBAT| B13| 12V|
LAM2A| B14| Lamv / LamD1+/ LamLun1| Pin6 on LSU4.9 Connector
LAM2B| B15| Lami / LamD1‐ /LamIP1| Pin1 on LSU4.9 Connector
LAM2C| B16| LamLIA1| Pin5 on LSU4.9 Connector
LAM2D| B17| LamGND / LamLVM1| Pin2 on LSU4.9 Connector
LAM2HEATER| B18| LAMBDA HEATER| Pin3 on LSU4.9 Connector
IVBAT| B19| 12V|
KLINE| B20| Kline| Engine Coolant Pump and Oil Level
RS232RX| B21| RS232RX|
RS232TX| B22| RS232TX|
LANRX‐| B23| Cat5 Pin2|
LANRX+| B24| Cat5 Pin1|
LANTX‐| B25| Cat5 Pin6|
LANTX+| B26| Cat5 Pin3|
Installation
-
Remove the Negative Terminal from the battery on the Vehicle.
-
Remove the Window Scuttle Panel as shown below ( white arrows ) by removing the 10 x 8mm Screws. Then battery harness shown in blue below away from the panel to gain access to the ECU box marked by the green arrow.
-
You will then find two cream colour boxes underneath the panel, On a RHD the OEM DME is found on the Right hand side of the Engine Bay when looking at
the engine from the front, LHD (USA, Middle East) its found on the Left. -
Remove the lid of the corresponding box to find the DME.
-
Unplug the 2 black connectors and remove OEM Computer.
-
Remove the OEM Computer holder as shown below.
-
Fit the Syvecs Harness, DI Driver and ECU inside the box. Allow the ethernet cable for programming to be easy to access.
-
Replace Negative terminal on Battery.
Email Support@Syvecs.com for a base calibration stating your setup ‐ Map Sensor, Fuel Setup, Turbo Setup etc.
N54 Kit FAQ and Help
-
Q) Do you control the OEM BSD Water pump?
A) Yes, under output function you will find BWM Water Pump. Here you can adjust the speed in duty from 0‐100% based on Water temp and Engine Speed .
-
Q) What of the original features will now not work?
A) All original features will function properly. -
Q) Can we use the OBD port still to Log, Read Codes and Clear them on other ecus on the car like ABS?
A) Yes via any BMW Tools. -
Q) How do we change calibrations switch positions on the kit?
A) This is done via the Cruise Control lever, pushing up changes the Calibration Select up 1 position at a time, then pressing down makes it go down, The current
Calibration Select position then gets shown on the RPM Counter on the dash. Pressing the M Button on the Steering wheel activates the Cal Overide switch which makes
the Calibration Jump to Cal 9, this will invoke a Rolling Antilag limiter. You may add another rotary switch into one of the Spare inputs on the kit for Traction Switch or
Calibration switching if no Cruise control stalk is present but if not the Traction Switch position will follow Cal Switch Position meaning you can change Traction levels via
the Cruise Switch also. -
Q) Can we run flex fuel and add additional inputs and outputs?
A) Yes see wiring for the ECU.
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