potential harness screw up - no knock sensor plugs

[e30rapidic]

this is what I have but double check for your application!!!!

oil pressure sensor BRN/GRN or BRN/GRY
front coolant temperature sensor (ECU) BRN/RED BRN
rear coolant temperature sensor (Gauge Sensor) BRN/YEL BRN/VIO
crank position sensor YEL
cam position sensor YEL RED/WHT BRN/ORG
VANOS solenoid RED/WHT GRN/BLU
knock sensor, 1-3 BLK NCA DME PIN 70
knock sensor, 4-6 BLK NCA DME PIN 69
throttle position sensor (TPS) BRN BRN/BLK RED/YEL
intake air temperature (IAT) sensor BRN GRY
idle control valve (ICV) WHT/YEL RED/WHT WHT/GRN
Evaporative emissions valve BRN RED/WHT

[samiam3356]

Whats the best way to figure out what all the plugs are for? my harness was pulled and not labeled.

Also I have an auto m50 harness if you need.

IMO continuity test the connectors to see where they go. The only one I had to use the wire colors for was the TPS for some reason. Once you lay the harness out most of it will make sense. There will be a bunch together that will need some attention but the injectors, AFM, O2, Alt, Starter will pretty much be self explanatoy. BTW the connector that runs with the AFM goes to the Charcoal cannister vavle. There, don't say I didn't ever give you something! :)

[Matt-B]

for NV m50

oil pressure sensor BRN/GRN or BRN/GRY
front coolant temperature sensor (ECU) BRN/RED BRN
rear coolant temperature sensor (Gauge Sensor) BRN/YEL BRN/VIO
cam position sensor YEL RED/WHT BRN/ORG
VANOS solenoid RED/WHT GRN/BLU
throttle position sensor (TPS) BRN BRN/BLK RED/YEL
intake air temperature (IAT) sensor BRN GRY
idle control valve (ICV) WHT/YEL RED/WHT WHT/GRN
crank position sensor YEL BLK NCA
Evaporative emissions valve BRN RED/WHT

[ck_taft325is]

The ETM's are your best bet. You match wire colors on connector ends to the ETM and what they do. Attach accordingly.

[AnimalE30]

Whats the best way to figure out what all the plugs are for? my harness was pulled and not labeled.

Also I have an auto m50 harness if you need.

[e30rapidic]

damn it...I don't even remember who sold it to me. I didn't realise it until tonight when I starting plugging everything in. Good thing its still on the engine stand.

[Jean]

fail

[Adrian_Visser]

If it has no knock sensors it is not VANOS. You're going to need a different harness.

[e30rapidic]

I was sold a "vanos" OBD1 e34 harness for my S50 but it doesn't have connectors for knock sensors. Would this even be compatible with my 413 red label or am I going to have CEL's...or a no start?


damn it. Looks like I need to source a new harness...