yes so you dont have an oil sensor, though VW kindly put a wire for it on the engine side of the round plug loom. you need to run a wire from the fusebox to the car side of the round plug, and add a MK2 oil temp sensor 049919563A
Awesome. Think I'd might as well tackle that one when it's coming up to winter and I don't sweat my knackers off!
So I'm back and forth with little jobs at the minute but have noticed yet another issue. When the engine was on the bench I removed the ccv breather pipe that runs from block to ccv cap. I used a plate to cover the hole and now there is oil residue all around that area as it's spitting it past the seal behind the plate... I think that is a sign I need to actually have the breather pipe back in place! Also I don't want an oil drenched engine bay.... I couldn't see the benefits of having that pipe in place but now I do!
All of the below checks are correct.... 17 - clutch switch 20 - cruise brake switch (pin 3) 44 - brake light switch (pin 4) brake switch: 1 - permanent live 2 - ignition live 3 - cruse brake switch - ecu pin 20 4 - brake lights on - ecu pin 44 .................................... Then on these pinout checks, it's the first and last one that don't check out . Pin 66 has continuity to black wire but no ignition live......do I need to add this in? Pin 58 - white wire. There is no pin 58 on my ecu connector. I do get continuity from white wire to the following ecu pins though: 1 24 38 39 42 I'm desperate to get the cruise working and I know it's soooo close Edit - Looking at a couple of ecu pinout diagrams it seems that most of the pins above that 58 has continuity to are grounds. I'm tempted to feed a wire into 58 so it's touching the pin, snip the existing white wire at the plug and wire this new 58 to the white cruise switch wire and see if it works. Can't do much harm.....
Ok so I've put an ignition live to the black wire which will make pin 66 live also - no difference at all. I'm assuming it's safe to leave this hooked up?
Can see below the pinout for ahu. No pin 58...where is the original pin that the white wire goes to? 1 Brown Ground 2 Black/Green Glow Plug Light 3 Not Used 4 Brown/Yellow Quantity Adjuster Pin 6 5 Brown/Yellow Quantity Adjuster Pin 6 6 Black/blue Coolant Glow Plug Relay Single 7 Gray/Green Modulating Piston G149-2 8 White Engine Speed Sensor G28-2 9 Not Used 10 Not Used 11 Blue Needle Lift Sensor G80-2 12 Gray Needle Lift Sensor G80-1 13 Brown/Red Mass Air Flow Sensor Pin 6 14 Blue/Brown Coolant Temperature Sensor G27-1 15 White/Blue Throttle Position Sensor Pin 1 16 Blue/White Oil Pressure .3 Bar F22 17 White/Red Clutch Switch F36-2 18 Yellow/Red ? 19 Red/Green Mass Air Flow Sensor Pin 1 20 White/Yellow Brake Light Switch F47-1 21 Not Used 22 Not Used 23 Black/Yellow Switched B+ from Relay 109 output 24 Brown Ground 25 Brown/White Exhaust Gas Recirculator Valve N18-2 26 Black/Brown Coolant Glow Plug Relay Dual 27 Not Used 28 Brown/Green Air Conditioning Relay 29 Violet/Black Modulating Piston G149-1 30 Green/White Glow Plug Relay J66 Pin 7 31 Blue/Yellow ? 32 Gray ? 33 Brown/Blue Sensor Ground 34 Blue/Gray Cruise Switch E45-2 Resume 35 Red Cruise Switch E45-3 Set 36 Not Used 37 Green/Gray Air Conditioning On (Signal from AC system) 38 Black Ignition from Key switch 39 Red/Black Alternator Load Signal DF Pin 2 40 Not Used Pin# Colour Function 41 Not Used 42 Black/Violet Power Relay J317 (109) 43 Blue/White Vehicle Speed Signal Cluster Pin 7 44 Black/Red Brake Light 45 Black/Yellow Switched B+ from Relay 109 output 46 Brown Ground 47 Red/Blue Wastegate Control Valve N75-2 48 Blue/Green 49 Brown/Yellow Quantity Adjuster Pin 6 50 Yellow/Blue Glow Plug Relay Pin 1 51 Brown/Black Cold Start Injector N108-2 52 White/Green Modulating Piston G149-3 53 White/Black Fuel Cutoff N109 54 Not Used 55 Green/Red Throttle Position Sensor Pin 3 56 Not Used 57 Green/Yellow Throttle Position Sensor Pin 2 58 Not Used 59 Blue/Black ? 60 Yellow/White Malfunction Indicator Light 61 Gray/White On Board Diagnostics Connector Pin 7 62 Green/White Throttle Position Sensor Pin 5 63 Yellow/Black Fuel Temperature Sensor G81-1 64 Blue/Yellow Intake Air Temperature Sensor G81-1 65 Green/Blue Throttle Position Sensor Pin 4 66 Black/White Cruise Switch E45-4 On 67 Not Used 68 Black/Yellow Switched B+ from Relay 109 output
You shouldn't need a pin 55 for cruise to work I believe - it is mainly just for a cruise light or a coast button. For the Audi ecu the diagram of pins are here. https://drive.google.com/file/d/0B2...MGIyLWE2MWEtZjExZTg2NWVkZmFl/view?usp=sharing Can you confirm the VCDS fault codes you have now - and also the status of the cruise measuring blocks. http://wiki.ross-tech.com/wiki/index.php/Checking_Cruise_Control_using_Measuring_Values
@m1keh do you mean I don't need pin 58? I'm nearly home so will get right onto it and post up today. Currently pins 66 + ign live , 34, 35 are hooked up ok
1 fault found : 00671 - Cruise Control Switch (E45) 25-10 - Unknown Switch Condition - Intermittent I have then removed and re-added the login to give 'G00SG' in the component field.
Ok very strange results.... Nothing at all pressed and cruise OFF Then cruise ON - same as above Then the speed up button pushed to the left - Then set (fix) button - Brakes - Clutch - Nothing for accelerator. I think stalk is capput. Is it worth trying the push to make and on off switches as described by dubnutter?
Yes I think you dont need that pin. It maybe worth checking if your stalk switches are working with a multimeter. this guide shows a bit more detail. https://workshop-manuals.com/volksw...signals/checking_cruise_control_system_(ccs)/
Instead of testing the switch I quickly wired up the diy switches and still the same results from vcds. The only difference in wiring is pin 1 on 4 pin connector is black/green. Pin 1 is ign live (green/black) Pin 2 is ecu pin 34 (blue/grey) Pin 3 is ecu pin 35 (red) Pin 4 is ecu pin 66 + ign live (black/white) That means both sides of my temporary on off switch are ign live... Flicking the on off switch gives no change in measuring blocks. I'm stumped.
I think you probably should try to add wire from pin 58 from ign live via a switch to your ecu connector... From what I can see thats your missing link. Although dubnutter didnt need to do this when he fitted an audi ecu to his golf... https://drive.google.com/file/d/0B2YUpJEMHSDrZDEzOGNiZGMtZGM1Yy00MGIyLWE2MWEtZjExZTg2NWVkZmFl/view
It's the only thing missing! I'll manage to get a wire in there but it might not be in factory fashion! Wire from pin 58 joined into the green black wire I already have for the cruise switch should work to make it ign live?
Yeah that should work. I'm sure i managed to buy pins for the ecu connector in the past from pole volt.. But struggling to remember what the correct terminal is!! https://polevolt.co.uk/acatalog/Terminals_for_Connector_Housings.html https://polevolt.co.uk/acatalog/Terminals_for_Special_Applications.html
https://polevolt.co.uk/cgi-bin/sh00...-Gold-plated-contact-tip.-3_8020.html#SID=103 Looks like I ordered these and some micro timer 1 terminals they dont seem to stock anymore...
I think I might have found the reason. The MK3 AHU cruise stalk black and white wires are wired the other way round vs other MK1/3 systems. black goes to ecu pin 66, and the white wire is ignition live! So that probably explains why bit 6 in measuring block 3 is always on. To 'fix' swap ignition live to the white wire and feed pin 66 direct to the stalk black wire
That could make a lot of sense! I did find it odd that it was permanently switched on but reverted back to the missing 58 like yourself and m1keh. I'll try the wire swap before trying to fit a new pin to ecu My cruise stalk is from a ce1 I do believe as I had to trim the plug a little to make it fit the mk3 loom connector behind the fuse box. I'll go swap wires now and report back