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Another Engine Wiring Question Pics Attached


POKTROKT
Go to solution Solved by Bandit,

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Found these three wires not plugged in under the hood. 

 

After a  bit or research I found the green/white goes to the auto choke, the red/black goes to the starter and the brow/black goes to the coolant temp sensor.

 

Choke and starter were easy, now where does the brown/black wire go? where is the coolant temp sensor on these cars, I can't seem to find a picture of it online.

 

Also there is a spade on the carburator that does not have a cable, can someone help identify this sensor (third picture below)

 

Thanks in advance

 

gallery_44285_33_50871.jpg

 

gallery_44285_33_44090.jpg

 

What plugs into this spade

gallery_44285_33_38980.jpg

Name: Mario M.

Car: 1976 BMW 2002

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The engine coolant temp sensor is on the front of the motor where the coolant lines come in from the radiator.

 

However im not sure that is where the plug goes. I dont recall exactly but i think there is a sensor in the intake manifold and if i remember that is where that wire goes.

 

 

post-42434-0-72169300-1370374240_thumb.j

1976 BMW 2002 Chamonix. My first love.

1972 BMW 2002tii Polaris. My new side piece.

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wires found in the BLUE insulation tubing are for EMISSION CONTROLS

and are ok to remove if the EC's have been removed. The BLUE tubing

Emission Controls harness is seperate from the basic

body/engine harness that's needed to run the motor

'86 R65 650cc #6128390 22,000m
'64 R27 250cc #383851 18,000m
'11 FORD Transit #T058971 28,000m "Truckette"
'13 500 ABARTH #DT600282 6,666m "TAZIO"

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There is the coolant temp sensor! dam I should have gone to bed before I sent this post at 1:47am last night  :mellow:

 

Thanks guys

 

From the wiring diagram:

brown/black = coolant temp sensor

brown/white = temp sensor <-- (I'm assuming this is the intake manifold air temp)

 

Still trying to figure out what this spade connector is though, it's hard to see but it is right in the center of the pic.

 

gallery_44285_33_38980.jpg

Name: Mario M.

Car: 1976 BMW 2002

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Idle cut off solenoid, I'm pretty sure. I remember this from when I pulled my old Solex off! Good riddance with it! You gotta get a Weber on this gal!

Edited by roadhog0

-Nathan
'76 2002 in Malaga (110k Original, 2nd Owner, sat for 20 years and now a toy)
'86 Chevy K20 (6.2 Turbo Diesel build) & '46 Chevy 2 Ton Dump Truck
'74 Suzuki TS185, '68 BSA A65 Lightning (garage find), '74 BMW R90S US Spec #2

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Idle cut off solenoid, I'm pretty sure. I remember this from when I pulled my old Solex off! Good riddance with it! You gotta get a Weber on this gal!

 

 

webers have one also, and it is for good reason. It prevents the motor from "dieseling" when you cut the ignition. Otherwise fuel will still flow and if the engine is hot enough it may keep running even without a spark to ignite the mixture. 

1974 Grey European Market BMW 2002 

1976 Yellow BMW 2002 "GOLDENROD" SOLD

1972 Yellow Austin Mini 1000

A bunch of Bikes...

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webers have one also, and it is for good reason. It prevents the motor from "dieseling" when you cut the ignition. Otherwise fuel will still flow and if the engine is hot enough it may keep running even without a spark to ignite the mixture. 

The 02 doesnt need em. I've done a lot of miles on mine with no cut offs and it diesels about once a summer for one hit, then settles down. Ive parked it after long hot highway drives and heating it up after hill climbs REALLY good (into the red good) and hasn't dieseled. So the Webers are OK without em. Other cars do need them though so your point is valid.

-Nathan
'76 2002 in Malaga (110k Original, 2nd Owner, sat for 20 years and now a toy)
'86 Chevy K20 (6.2 Turbo Diesel build) & '46 Chevy 2 Ton Dump Truck
'74 Suzuki TS185, '68 BSA A65 Lightning (garage find), '74 BMW R90S US Spec #2

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