oil light flashing need info

[leeroy20vt]

hello again need some please i have put a 9a engine in my mk2 its running carbs
since i have put it in the oil light has been flashing i know it has oil and pressure is ok

what i need to know is what wire goes to what sensor  that will make this flash when disconected

thanks in advance lee

[danny_p]

if the sensor wires are swaped that will bring the oil light on

[leeroy20vt]

if the sensor wires are swaped that will bring the oil light on

im sure i got a greeny colour wire to front sensor and a yellow on rear both on oil cooler positive thats how they came off the 8v lump ?

[rubjonny]

sounds like you have used the old 8v wiring, which will mean your sensor wiring is wrong.

the green/black wire ids for the oil temp, and on the 16v this sensor is on the back of the head, not the oil filter housing. on the 8v the low oil pressure switch is on the side of the head, with the blue wire going to it.

You need to extend the blue wire so it reaches the oil filter housing, the blue wire goes to the black/blue/brown sesnor, the yellow wire goes to the white sensor.  Then you'll need to extend the green wire to reach the back of the head, if you're bothered about the MFA working.  If you're lucky the 9a will have 3 sensor holes on the filter housing, if so you can move the oil temp sensor into the filter housing.

[leeroy20vt]

sounds like you have used the old 8v wiring, which will mean your sensor wiring is wrong.

the green/black wire ids for the oil temp, and on the 16v this sensor is on the back of the head, not the oil filter housing. on the 8v the low oil pressure switch is on the side of the head, with the blue wire going to it.

You need to extend the blue wire so it reaches the oil filter housing, the blue wire goes to the black/blue/brown sesnor, the yellow wire goes to the white sensor.  Then you'll need to extend the green wire to reach the back of the head, if you're bothered about the MFA working.  If you're lucky the 9a will have 3 sensor holes on the filter housing, if so you can move the oil temp sensor into the filter housing.

sweet just what i needed at the mo i have the blue wire on side of the 9a head which is why its not working


so what is the sensor on the side of the head any ideas water ??

cheers for the help guys

[rubjonny]

if its a small single pin one with a black colar, yeah thats the coolant temp sensor for the dash.
the single pin one on the back of the head with a white colar is the oil temp sensor for the MFA

[leeroy20vt]

if its a small single pin one with a black colar, yeah thats the coolant temp sensor for the dash.
the single pin one on the back of the head with a white colar is the oil temp sensor for the MFA

diamond nice 1 will sort this tommorow as its blody cold and foggy out there now lol

cheers lee

[leeroy20vt]

rite scrapp last post lol went out and done it but light still flashing

but i think i might have wrong sensor in there

do u know what colour it is and if it the same as a kr front sensor

thanks lee

[rubjonny]

do you still have your old engine? if so whip out the sensor from the side of the head and swap it over, replace the black/brown/blue sensor thats on the 9a. the white sensor should be fine, otherwise it woudl be buzzing over 2k rpm.

[leeroy20vt]

sorted cheers m8 it dont flash any more and i can take the bit of black tape of the clocks now 

another quick question on the 8v i take it that the temp sender is in the plastic pipe coming out the front of the head ??

so which one of the plugs and what and were would i put them to get the correct reading thanks

lee