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Summary of change:
=== '''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: *60 trim T3 Garrett with 0.63 AR turbine *Audi external wastegate *Stacked headgaskets *440cc/min highZ injectors, with 750cc/min lowZ planned for later *Just over 1 bar boost *Mapped water injection with aquamist HSV solenoid ---- === '''Sensors''' === *Hall-effect type crank sensor on a 60-2 trigger wheel (15th tooth at TDC; counting convention used is missing tooth#1 is 0th tooth and missing tooth#2 is 1st tooth) *Hall-effect sensor on camshaft for camsync (1-window trigger wheel) *Bosch coolant temperature sensor *GM open element air intake temperature sensor *Two stock Bosch 3-wire knock sensors ---- === '''Standard actuators''' === *Single Bosch coil triggered by Bosch ignition module located just under the coil. Original ECU controlled the dwell. Now swapping to waste-spark using VAG coil from 2000 Golf 2.0-8V *2-wire 4-ohm Bosch idle control valve, operating at around 140Hz *Currently 440cc highZ injectors, but hopefully the VEMS will be able to idle the new lowZ 750cc injectors without problems *RPM signal from ECU to instrument cluster to drive tachometer === '''Extra actuators''' === *High current PWM driver for aquamist water injection high speed valve (HSV) *2 stage shiftlight using 2 large LED's *Intake air temperature based output to drive intercooler spray solenoid *Boost control using Cosworth or Saab boost solenoid *one EGT using k-type thermocouple in exhaust manifold *Noritake VFD 4x20 LCD-pin-compatible display to replace the blue LCD ordered from webshop *One wideband bosch LSU4 sensor ---- === '''Wiring''' === Proposed wiring for ABF to VEMS plug and play loom: ||'''Description'''||'''ABF ECU pinout'''||'''VEMS Econoseal pinout'''||'''VEMS channel'''|| ||Main grounds||T68/1||EC36-5,21,32,22|| ||Sensor grounds||T68/33||EC36-26|| ||Air temp sensor||T68/36||EC36-2|| ||Coolant sensor||T68/14||EC36-14|| ||TPS signal||T68/40||EC36-1|| ||Crank sensor power||T68/68||EC36-28 (for 5V) or T68/38-EC36-25 (for 12V)|| ||Crank sensor signal||T68/67||EC36-27|| ||Camshaft sensor power||T68/46||EC36-28 (for 5V) or T68/38-EC36-25 (for 12V)|| ||Camshaft sensor signal||T68/44||EC36-13|| ||Switched 12v power||T68/38||EC36-25|| ||TPS reference voltage||T68/41||EC36-29|| ||Ignition coil output 1||T68/8||EC36-35||I259_0|| ||Ignition coil output 2||External wiring||EC36-33||I259_1|| ||Idle control valve||T68/27||EC36-18||INJFET_7|| ||Injector 1||T68/24||EC36-7||INJFET_0|| ||Injector 2||T68/25||EC36-19||INJFET_1|| ||Injector 3||T68/26||EC36-8||INJFET_2|| ||Injector 4||T68/2||EC36-20||INJFET_3|| ||Injector 12V common||External wiring||EC36-23|| ||Fuel pump relay||T68/6||EC36-15||P259_5|| ||Tachometer signal to cluster||T68/22||EC36-10||I259_7|| ||Knock sensor 1 signal||T68/34||EC18-3|| ||Knock sensor 1 ground||T68/32,10||EC18-2|| ||Knock sensor 2 signal||T68/57||EC18-3|| ||Knock sensor 2 ground||T68/55,56||EC18-2|| ||Boost control||T68/31 (Charcoal canister)||EC36-6||INJFET_6|| ||Shift light 1||External wiring (350mA)||EC36-4||P259_0|| ||Shift light 2||External wiring (350mA)||EC36-16||P259_1|| ||Coolant fan||External wiring (350mA)||EC36-31||P259_6|| ||ALS kicker solenoid||External wiring (Needs external flyback diode)||EC18-12||SPECFET_0|| ||Water injection HSV solenoid (PWM)||External wiring||EC36-24||I259_6|| ||Intecooler water spray solenoid (on-off)||External wiring (350mA + 5 pole relay for override)||EC36-30||P259_7|| Unused outputs: *SPECFET_1 *WOT actuator *RPM actuator *WB heater#2 *INJFET_4 *INJFET_5 *I259_2 *I259_3 *I259_4 *I259_5 *Stepper S259_3, S259_4, S259_5, S259_6 *Idle solenoid P259_4 ---- === '''Input trigger''' === Proposed Primary trigger settings: *Edge: Rising *Type: Multitooth *Filtering: Disabled *Advanced filtering: Disabled ('''NOT SURE WHAT THE FUNCTION OF THIS FILTER IS YET; waiting for EricN's page to update?''') *Special N-1: Disabled *Fiat Stilo: Disabled *TDC after trigger: 60 *Number of teeth on wheel: 58 *Trigger tooth: 3 *Next trigger tooth: 30 *Crank min period: 3750 usec *Angular width of tooth: 2 *Tooth relation Normal: 122 (irrelevant with multitooth advanced filter disabled) *Tooth relation Missing: 181 (irrelevant with multitooth advanced filter disabled) *Angular width of missing teeth: 6 *Engine phase: 240 Proposed secondary trigger settings (not very well documented in the manual, but I might not end up using this trigger): *Active: Enabled? *Edge: Rising? *Edge while cranking: single? *Filtering: disabled? *Type: coil type? *Use: Alien advance? *Rising edge phase: ? *Falling edge phase: ? ---- === '''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).
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