MembersPage/BasilDaham/CordobaSX (2006-11-19 19:52:26)

Overview

Trying to get VEMS to run in a plug and play fashion on a 1997 Seat Cordoba SX, with a 2.0-16V engine (engine code ABF). The current engine hardware:


Sensors


Standard actuators

Extra actuators


Wiring

Proposed wiring for ABF to VEMS plug and play loom:

DescriptionABF ECU pinoutVEMS Econoseal pinoutVEMS channel
Main groundsT68/1EC36-5,21,32,22
Sensor groundsT68/33EC36-26
Air temp sensorT68/36EC36-2
Coolant sensorT68/14EC36-14
TPS signalT68/40EC36-1
Crank sensor powerT68/68EC36-28 (for 5V) or T68/38-EC36-25 (for 12V)
Crank sensor signalT68/67EC36-27
Camshaft sensor powerT68/46EC36-28 (for 5V) or T68/38-EC36-25 (for 12V)
Camshaft sensor signalT68/44EC36-13
Switched 12v powerT68/38EC36-25
TPS reference voltageT68/41EC36-29
Ignition coil output 1T68/8EC36-35I259_0
Ignition coil output 2External wiringEC36-33I259_1
Idle control valveT68/27EC36-18INJFET_7
Injector 1T68/24EC36-7INJFET_0
Injector 2T68/25EC36-19INJFET_1
Injector 3T68/26EC36-8INJFET_2
Injector 4T68/2EC36-20INJFET_3
Injector 12V commonExternal wiringEC36-23
Fuel pump relayT68/6EC36-15P259_5
Tachometer signal to clusterT68/22EC36-10I259_7
Knock sensor 1 signalT68/34EC18-3
Knock sensor 1 groundT68/32,10EC18-2
Knock sensor 2 signalT68/57EC18-3
Knock sensor 2 groundT68/55,56EC18-2
Boost controlT68/31 (Charcoal canister)EC36-6INJFET_6
Shift light 1External wiring (350mA)EC36-4P259_0
Shift light 2External wiring (350mA)EC36-16P259_1
Coolant fanExternal wiring (350mA)EC36-31P259_6
ALS kicker solenoidExternal wiring (Needs external flyback diode)EC18-12SPECFET_0
Water injection HSV solenoid (PWM)External wiringEC36-24I259_6
Intecooler water spray solenoid (on-off)External wiring (350mA + 5 pole relay for override)EC36-30P259_7

Unused outputs:


Input trigger

Proposed Primary trigger settings:

Proposed secondary trigger settings (not very well documented in the manual, but I might not end up using this trigger):


Fueling

Req fuel = 6.49 * (D / N / I) = 6.49 * (1998/4/506) = 6.4ms (42lb injectors)

Req fuel = 6.49 * (D / N / I) = 6.49 * (1998/4/862) = 3.8ms (72lb injectors)

It's recommended to halve this req-fuel, so the max VE entries will be (instead of 100) around 200 (or even up to 255) for better precision. Thanks for this suggestion, hence new req_fuel will be 3.2ms and 1.9ms for the two injector sizes respectively.


Ignition

Coil output settings etc...


Idle valve settings

ISV details...


Boost control

Boost control settings...


ALS

Still figuring out (i.e combing wiki) how to wire up a switch to turn this function on, along with launch control.


Mapped water injection

Looking for the best hardware solution to (PWM) drive the water injection solenoid according to a 3D map, or at least in scaled proportion to the fuel injectors' pulsewidth (i.e. VE map).