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IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now. Visit Preferences to set your user name Summary of change: ---- '''Navigation''' * Main MembersPage/KoabiBrooks * Idle MembersPage/KoabiBrooks/Idle * Ignition MembersPage/KoabiBrooks/Ignition * Injection MembersPage/KoabiBrooks/Injection * Trigger MembersPage/KoabiBrooks/Trigger * Wiring MembersPage/KoabiBrooks/Wiring * Q&A MembersPage/KoabiBrooks/Questions ---- '''WIRING PAGE''' http://koabi.lazyslacker.com/zenphoto/albums/Cars/Scirocco/Reference/VEMSvisualharness1.png Visual Harness Current wiring notes (note, connector names from bentley manual): *T2f (black connector by master cyl) R/Y should be fed to VEMS FP output **PIN 15 on EC36 *T2f (black connector by master cyl) R/W should be fed to O2 sensor heater AND fuel injector power supply **pin 3 on LS4U is heater supply **Is running injection supply off of this source also going to be too much? *** Separate 5A fuse for LSU4 is recommended (separate OK, because LSU4 is not inductive so flyback is noissue; 5A because it might need more than 1A in very cold); At least add 10A inline fuse if this ends up being supply for o2 and injection *T3d (white connector by master cyl) black should feed VEMS +12v **Pin 25 on EC36 ---- http://koabi.lazyslacker.com/zenphoto/albums/Cars/Scirocco/060409wirestomainharnessfar.JPG Note: coolant bottle is removed for viewing. http://koabi.lazyslacker.com/zenphoto/albums/Cars/Scirocco/060409wirestomainharness.JPG Close up *The top connector is a 2 pin mystery connector. **Green and violet/black on the engine harness side (left). **Green and blue on the main harness side (right). **Green was for #50 starter trigger. Digifant needed it, VEMS doesn't. *The middle connector is T3d per the Bentley manual in the 16v engine section. **black on engine harness side and engine harness side ***Switched +12v ***Two wires from one pin, one wire from another pin on engine side (left) ***One loopback on main harness side (right) to power additional pin **Red/black on engine harness side and main harness side ***This is off the starter relay...it's only powered when the starter is cranking... *The bottom 2 pin connector is T2f (the black connector) **Red/yellow on both sidse ***From fuel pump relay output - route to ECU to allow priming. **Red/White ***+12v switched that originally powered O2...will be used for that again. ---- '''VEMS Harness''' Wiring Table |||||||||| '''EC36''' || ||{B}Component/Sensor||{B}Wire Color||{B}Wire Function||{B}ECU location/Pin||{B}Harness Location/Pin|| ||||||||||{s=background-color: #000000}|| ||{w=2,B}Coolant Temperature Sensor||Orange||Signal||Pin 14 on EC36||doesn't matter?|| ||Green||Ground||Analog Ground||doesn't matter?|| ||||||||||{s=background-color: #000000}|| ||{w=2,B}Intake Air Temperature Sensor||Grayblue||Signal||Pin 2 on EC36||doesn't matter?|| ||Green||Ground||Analog Ground||doesn't matter?|| ||||||||||{s=background-color: #000000}|| ||{w=3,B}Throttle Position Sensor||Yellow||+5v||Pin 28 on EC36||Pin 1?|| ||Pink||ECU signal||Pin 1 on EC36||Pin 3?|| ||Green||Ground||Analog Ground||Pin 2?|| ||||||||||{s=background-color: #000000}|| ||{w=4,B}Wasted Spark Coil||Red||+12v||+12v that was used on stock coil||Pin 2|| ||Dark Gray||Cyl 1 and 4||Pin 36 on EC36 (was pin 35 on EC36)||Pin 1 or 3|| ||Light Gray||Cyl 2 and 3||Pin 12 on EC36 (was pin 33 on EC36)||Pin 1 or 3|| ||Green||Ground||Power Ground||Pin 4|| ||||||||||{s=background-color: #000000}|| ||{w=3,B}VR Crank Position Sensor||White||Signal||Pin 27 on EC36||Pin 1|| ||Black||Ground||Analog Ground||Pin 2|| ||Shield||Ground||Analog Ground||Pin 3 (see trigger page)|| ||||||||||{s=background-color: #000000}|| ||{w=2,B}Idle Stabilizer Valve||Red||+12v||+12v source||Pin 1|| ||Beige||Signal||Pin 6 on EC36||Pin 3|| ||||||||||{s=background-color: #000000}|| ||{w=5,B}Fuel Injectors||Red||+12v thru flyback||Source +12v, Flyback Pin 23 on EC36||T2f (black connector by master cyl) Red/White (shared with WBo2)|| ||Black||Inj A||Pin 7 on EC36||don't know|| ||Blue||Was Inj B then E '''NOW Inj H''' B and E are stuck open||Was Pin 19 then 9 on EC36 '''Now Pin 17'''||don't know|| ||White||Inj C||Pin 8 on EC36||don't know|| ||Yellow||Inj D||Pin 20 on EC36||don't know|| ||||||||||{s=background-color: #000000}|| ||{B}Fuel Pump Relay Trigger||White||Signal||Pin 16 on EC36 (was Pin 15 on EC36)||T2f (black connector by master cyl) Red/Yellow|| ||||||||||{s=background-color: #000000}|| ||{B}Shift Light||Yellow/Black Stripe||Signal||Pin 3 on EC36||TBD instrument cluster||||||||||||{s=background-color: #000000}|| ||{B}Tachometer||Light Green||Signal via 1kOhm pull-up resistor||Pin 4 on EC36||Red/black where coil was|| ||||||||||{s=background-color: #000000}|| ||{w=2,B}ECU||Red||+12v||Pin 25 on EC36||see top section|| ||Green||Ground||Pin 26 on EC36||Analog Ground|| ||||||||||{s=background-color: #000000}|| ||{w=4,B}Power Grounds||Green||Ground||Pin 5 on EC36||Power Ground|| ||Green||Ground||Pin 21 on EC36||Power Ground|| ||Green||Ground||Pin 22 on EC36||Power Ground|| ||Green||Ground||Pin 32 on EC36||Power Ground|| ||||||||||{s=background-color: #000000}|| ||{B}Other Grounds||Black||Analog Ground to Power Ground||Ground||Power Ground|| ||||||||||{s=background-color: #000000}|| ||{w=4,B}Spares||Purple|| ||Yellow|| ||Blue|| ||White|| ||||||||||{s=background-color: #000000}|| |||||||||| '''EC18''' || ||{B}Component/Sensor||{B}Wire Color||{B}Wire Function||{B}ECU location/Pin||{B}Harness Location/Pin|| ||||||||||{s=background-color: #000000}|| ||{w=3,B}Knock Sensor||White||Signal||Pin 3 on EC18||Pin 1|| ||Black||Ground||Pin 2 on EC18||Pin 2|| ||Shield||Ground||Pin 2 on EC18||Pin 3|| ||||||||||{s=background-color: #000000}|| ||{w=6,B}Wideband Oxygen Sensor||Red||+12v||T2f (black connector by master cyl) Red/White (shared with fuel injectors)||Pin 3|| ||Yellow||WBo2 Pump+||Pin 9 EC18||Pin 6|| ||Blue||WBo2 Pump-||Pin 7 on EC18||Pin 5|| ||Black||WBo2 Heater||Pin 18 on EC18||Pin 4|| ||White||Nerst Cell Signal||Pin 13 on EC18||Pin 1|| ||||||||MembersPage/PhatBob/UserGuide http://vems.hu/www.vems.co.uk/VEMSUserManual/ConnectingWBO2Sensor.png|| ||||||||||{s=background-color: #000000}|| ||{w=4,B}=DSUB9 (Serial Port)||tbd||???||Pin 14 EC18||Pin 3|| ||tbd||???||Pin 15 EC18||Pin 2|| ||tbd||ground||Analog Ground||Pin 5|| ||||||||MembersPage/PhatBob/UserGuide http://vems.hu/www.vems.co.uk/VEMSUserManual/ConnectingSerialPort.png|| ||||||||||{s=background-color: #000000}|| ||{B}Fuel Pressure Input||tbd||Signal||Pin 12 EC18||not yet implemented|| ||||||||||{s=background-color: #000000}|| ||{B}Extra ADC input (analog digital converter)||tbd||tbd||Pin 6 EC18||???|| ||||||||||{s=background-color: #000000}|| ||{w=4,B}Vehicle Speed Sensor||White/Black||Signal||Pin 8 on EC18||Pin 2|| ||Red||+12v (shared with ISV)||In Harness by ISV connector||Pin 1|| ||Green||Ground||Analog Ground||Pin 3|| Harness-side pinout with the guide tab pair pointing downwards. http://koabi.lazyslacker.com/zenphoto/albums/Cars/Scirocco/Reference/connectorpinout.gif Misc ECU Grounds *Green **Pins 5, 21, 22, 32 on EC36. These are the "power" grounds and go to the main ground point **Coilpack will go to the main ground point *Green **Pin 26 is the analog ground. There will be some ground distro near the ECU that all the sensors will go to. '''NOTE: This distro IS NOT to be connected to the car ground besides the single wire that connects it to the main ground.''' **CLT, IAT, TPS, VR, will go to this ground distro. For VR and both signal ground and shield ground will go to this analog ground. For KS, both signal ground and shield ground will go to EC 18 pin 2 (see KS section above) *Black **Ground from the sensor ground distro to power ground point Missing! * Boost Controller solenoid output ** a free output on EC36 (or EC18: the stepper output also fine unless all 4 used for stepper). GenBoard/Manual/DigitalOut/Table *Fuel Pressure ** an mcp3208 analog input on EC18, (pin12, 6, 16) depending on [http://shop.vems.hu/catalog/product_info.php?cPath=1&products_id=48 assembled options] '''APPARENTLY I SHOULD USE PIN 12''' *WHAT ELSE SHOULD I LEAVE WIRE FOR (think future upgrades) ** delayed self destruct button ;-) ** maybe evap canister valve solenoid ? ** Congrats, very nice page(s) ! (actually among the nicest, most informative) Optional: Add document to category: Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.