- Tue Oct 06, 2020 8:29 pm
#45694
Hi
I buy along time ago a Tec3r (about 10 years) never installed until this year, I'm working in a mid engine v8 vw bug, after all the wire is done I check inputs and all looks find, and decide to upgrade firmware and Tec3r bricked (never run car) I contact electromotive support and they said this is common in this Ecu's due the serial comunication problems and need to send unit to repair, the repair cost is about $100 + $313 to hardware upgrade to WinTec4 to avoid serial communication trouble + shipping (from Mexico) $120 for Mex-Usa and Usa-Mex for that mony I think I go to made my own board. My engine have Low Z injectors and 4 waste spark dumb coils. The goal is to keep current harness (I dont want to rewire ecu) I try to mach this board to tec3r pinout.
So this is my project please check the board and pointme in errors and improvements.
Specs:
8 injection chanels (Peak & Hold)
6 ignition chanels (for dum coils)
6 1.5A current chanels (1 PWM Teensy 3.5, 2 PWM Teensy 3.6) (Fan, Fuel Pump, etc.)
IDLE out
stepper motor
Bluetooth on Serial 2
UD-/UD+ from Teensy to DB9 connector
Clutch control
Tachometer out
5V power supply for sensors
Two O2 sensor input
CAN on DB9 connector
Manifold air temperature sensor input
Coolant temperature sensor input
Throttle position sensor input
Map sensor input for external sensor
Internal Map sensor 3 Bar
Two HALL input or VR (Crank/Cam)
Two VSS inputs (for external board)
Check Engine output (led)
Knock sensor input (for external board)
1 Analog input (for extra sensor)
All digital and analog signal shift level for 3.3v (for use on teensy 3.6)
https://github.com/hugovw1976/ECU_R42_8INJ_8IGN
I buy along time ago a Tec3r (about 10 years) never installed until this year, I'm working in a mid engine v8 vw bug, after all the wire is done I check inputs and all looks find, and decide to upgrade firmware and Tec3r bricked (never run car) I contact electromotive support and they said this is common in this Ecu's due the serial comunication problems and need to send unit to repair, the repair cost is about $100 + $313 to hardware upgrade to WinTec4 to avoid serial communication trouble + shipping (from Mexico) $120 for Mex-Usa and Usa-Mex for that mony I think I go to made my own board. My engine have Low Z injectors and 4 waste spark dumb coils. The goal is to keep current harness (I dont want to rewire ecu) I try to mach this board to tec3r pinout.
So this is my project please check the board and pointme in errors and improvements.
Specs:
8 injection chanels (Peak & Hold)
6 ignition chanels (for dum coils)
6 1.5A current chanels (1 PWM Teensy 3.5, 2 PWM Teensy 3.6) (Fan, Fuel Pump, etc.)
IDLE out
stepper motor
Bluetooth on Serial 2
UD-/UD+ from Teensy to DB9 connector
Clutch control
Tachometer out
5V power supply for sensors
Two O2 sensor input
CAN on DB9 connector
Manifold air temperature sensor input
Coolant temperature sensor input
Throttle position sensor input
Map sensor input for external sensor
Internal Map sensor 3 Bar
Two HALL input or VR (Crank/Cam)
Two VSS inputs (for external board)
Check Engine output (led)
Knock sensor input (for external board)
1 Analog input (for extra sensor)
All digital and analog signal shift level for 3.3v (for use on teensy 3.6)
https://github.com/hugovw1976/ECU_R42_8INJ_8IGN
Attachments
R42_ECU2_Top.jpg (7.34 MiB) Viewed 5922 times
R42_ECU2_Sch.jpg (3.6 MiB) Viewed 5922 times
R42_ECU2_Bot.jpg (7.31 MiB) Viewed 5922 times