11 replies to this topic

[siztenboots]

TeamVXRacing - Datasheet of X31 and X32 ECU/engine looms and common fault connections
 
2x 64-way connectors , BMK 0.6 terminals ( https://www.bosch-co...earch?q=bmk 0.6 )
 
Systems VX220 loom X31 - Engine Z20LET 
Components 
pin 21, pin 54, pin 22, pin 4, pin 37, common pin 5  B19 Sensor - Pedal position -> X3
pin 23, pin 53, common pin 5  B110 Sensor - Atmospheric pressure 
pin 51  FB20 -> X2
pin 18  FB8 -> X3 #VT
pin 20  STA "111"-INS "733"  -> X2
pin 35  INS "718"  -> X2 #GNBU = PWM? Coolant sensor signal for dashboard LCD
pin 13  INS "743" -> X3 #BNBU
pin 57  SLS "428"  -> X2
pin 25  SLS "429"  -> X2
pin  8  CLS "439"   -> X2
pin 29  MK "1143"  -> X2 -> ground control for K13 rad fan relay
pin 45  Z20LET "944"  K82 pin 4 Relay - Pump, coolant additional M55 - -> X3 #VTOG
pin 59  WEG "1243" - Vehicle speed signal (ABS) - -> X3 #YEGY
pin  2  IMO "1433" -> X3 #WHYE
pin 19  K18 pin 4  Relay - Engine control unit  -> X2
pin 49-33-17  K18 pin 3  Relay - Engine control unit  -> X2 (p17 -> X33)
pin 62  K16 pin 4  Relay - Fuel pump  -> X2

pin11 optional canbus
pin32 optional canbus
 
 
Systems VX220 loom X32 - Engine Z20LET 
Components 
pin 45 common shield, common "932", pin 49, pin 25+8  B117 Sensor - Oxygen, mixture control, heated 
pin 45 common shield, common "932", pin 17, pin 41+57  B118 Sensor - Oxygen, catalytic converter check 
common "932", pin 35 Y8 Solenoid valve - Boost pressure regulation 
pin 9 common, pin 7 common, "932" common, pin 6 B46  Air mass meter 
pin 9 common, pin 7 common, pin 22, pin 55 B21 Sensor - Absolute pressure, intake manifold 
pin 7 common, pin 7+36, pin 45 common shield  B35 Sensor - Camshaft 
pin 45 common shield, pin 42 #GYBK , pin 10 #GYRD B34 Impulse sensor - Crankshaft 
 
pin 9 common, pin 38 B61 Sensor - Coolant temperature (gauge) 
pin 15, pin 32, pin 31, pin 16 T1  Ignition coil - Direct ignition 
C1 Condensor - Ignition coil 
 
pin 21+37  B30 Sensor - Knock control 1 
pin 11-43, pin 28-60, pin 39, pin 56, pin 23, pin 58  Y11 Throttle valve - Positioner 
pin 50  Y2 Actuator - Recirculation 
 
pin 31, X31 pin 3 common  Y9.1 Injection valve - Cylinder 1 
pin 18, X31 pin 3 common  Y9.2 Injection valve - Cylinder 2 
pin  2, X31 pin 3 common  Y9.3 Injection valve - Cylinder 3 
pin 34, X31 pin 3 common  Y9.4 Injection valve - Cylinder 4 
pin 33, X33 pin 6-"932" common  Y5 Solenoid valve - Tank ventilation 
 
info: pin x+y = means pins x and y are in a shielded cable
pin x-y = means pins x and y are connected
 
Abbreviations 
INS Instrument  MKM Engine cooling module 
CLS Clutch switch SLS Stop lamp switch 
TC Traction control WEG Vehicle speed signal 
ESP Electronic stability program
#WHYE - wiring WhiteYellow
 
updated the loom X2 and X3 connector for X31 ecu plug
 
Thanks to Mike for his excellent compiled wiring diagram PDF

[siztenboots]

I seem to have misplaced part of my x31 ecu plug loom, but took some pictures b6d (starter motor, alternator, main chassis earth, knock sensor)

 

ECU X31 bottom (with atmo p sensor) , X32 top
 

 

b6d loom

 

 

 

k6x loom - ecu X32 plug

[garyk220]

Do you need any photos of the X31 loom or any of the plugs? Mine is in a box upstairs at the moment.

[siztenboots]

Do you need any photos of the X31 loom or any of the plugs? Mine is in a box upstairs at the moment.

Yes please they are a real pain to photo on the car in situ Need to confirm colour of x2 x3 plugs

[garyk220]

OK no problem, will get some photos at the weekend. PM me an email address and I will send them over.

[siztenboots]

details

[garyk220]

Zip file with several photos and a list of the wiring colours on the X2 and X3 plugs sent.

[siztenboots]

ecu plug details

[siztenboots]

I see the ecu pictures have gone, thats helpful

[siztenboots]

pictures of the two ecu plugs,
 
tvxr ecu plugs
 
Atmospheric barometer sensor plug , x31 left ,  x32 right , in situ . Earth wire hiding behind.
 
Security bolt and bracket drilling out
 
The 3rd ecu is just my spare with the K6X label
 
 

[siztenboots]

pin 1 identification

mos = marked on side

moi = concealed marked on inside rubber boot

mop = concealed marked on pin socket

 

 

K6X loom order by furthest to nearest ECU plug X32

 

plug 1 , B3 oil sump level sensor 2way mos - pin 1 Brown , pin 2 Green-Brown 

plug 2 , Y8 boost control solenoid 2way mos , pin 1 Green-Brown , pin 2 Brown

 

plug 3 , Y5 fuel tank venting solenoid loom extension X37 , 2way , pin1 Red-White , pin2 Brown-red

plug 4 , B34 crank sensor 3way sealed mos, pin1 grey-black, pin2 grey-red, pin3 shield

plug 5 , X36 tmap B46 loom extension 5way moi , pin 1 unused , pin2 red-white, pin3 brown , pin4 red , pin 5 blue-white

 

plug 6 , Y11 throttle body, 6way , mop 

 

plug 7,8,9,10 , injectors 2way mos , common splice small red-blue into big red-blue , supply voltage

plug 7, Y9.1 inj#1, pin 1 red-blue , pin 2 brown-red

plug 8, Y9.2 inj#2, pin 1 red-blue , pin 2 brown-blue

plug 9, Y9.3 inj#3, pin 1 red-blue , pin 2 brown-green

plug 10, Y9.4 inj#4, pin 1 red-blue , pin 2 brown-yellow

 

plug 11 , B35 camshaft sensor 3way moi, pin1 shield, pin2 yellow, pin3 yellow-black

 

plug 12 , T1 coilpack 6way moi , pin 1 brown, pin2 black shield, pin3 white, pin4 yellow, pin5 green, pin6 blue

plug 13 , C1 ignition condenser 1way , black , capacitor engine block

plug 14 , B30 knock sensor , 2way , pin1 brown, pin2 brown-green

 

plug 15 B117 fuel lambda sensor 4way moi, pin1 red-white, pin2 blue-brown, pin3 brown-black, pin4 brown-white

 

plug 16 X33 grey plug plus spade connector brown , 6way mos , pin1 brown-green, pin2 brown-white (recirc solenoid ground loom extension X34), pin3 red-blue (fuel pump and injectors supply voltage from K16) , pin4 unused, pin5 black (FB20 10amp supply to ignition coil and suppressor), pin6 large red-white (supply voltage fuel tank solenoid from K18)

 

plug 17 B118 cat lambda sensor 4way moi, pin1 red-white, pin2 blue-brown, pin3 brown-black, pin4 brown-white

 

plug 18 B61 coolant level 2way, pin1 brown-blue , pin2 brown

 

plug 19 X35 loom extension B21 air mass meter 4way moi , pin1 brown, pin2 green-brown, pin3 red, pin4 blue-white

 

plug 20 ECU X32

[siztenboots]

last update 4th June 2018

 

X2 "Blue"

pin 1 12v supply from K18 relay to ecu

pin 2 INS733 and STA111

pin 3 12v supply from K16 relay (fuel pump and injectors)

pin 4 12v supply from FB20 10amp , #GNGY to coil pack via X33 pin 5 , #BK to coilpack

pin 5 12v supply from FB20 10amp , #GNGY to ecu X31 pin 51 (Z20LET) 

pin 6 12v supply from FB7 10amp, to Y2 recirc solenoid

pin 7 CLS439 Switch - Clutch Pedal

pin 8 ground control to energise K16 relay, Fuel pump and injectors

pin 9 INS718 Indicator - Coolant temperature

pin 10 SLS428 Switch - Stop lamp, double nc

pin 11 SLS429 Switch - Stop lamp, double no

pin 12 ground control to energise K18 relay

pin 13 MK1143 ground control to energise K13 relay, Radiator fan

 

X3- "Black"

pin 1 Pedal pin 1 YE to X31 pin4

pin 2 Pedal pin 2 GN to X31 pin21

pin 3 Pedal pin 3 BU to X31 pin54

pin 4 Pedal pin 4 BK to X31 pin22

pin 5 Pedal pin 5 WH to X31 pin5

pin 6 Pedal pin 6 BN to X31 pin37

pin 7 944 ground control signal to energise relay K82 aux pump VT/OG

pin 8 B3 Switch - Oil pressure Instrument H1.2  BN/BU

pin 9 IMO1433 Immobiliser WH/YE

pin 10 INS743 Immobiliser Telltale - Engine BN/BU

pin 11 Vehicle speed WEG1243 YE/GY 

pin 12 Alternator D+

pin 13 Fuse 7.5A FB8