fastford79

Hello
Have started converting a 1990 xr3i efi to turbo and want to use the OFAC parts
from the fiesta. My car does not have the CO potentiometer but a lambdasensor. Will this work or do i have to make some changes?

studabear

Unsure on this 1, I've never seen a mk4 with a lambda sensor, is it factory?

fastford79

yes it is from factory

fatmike

iTrader: (4)

same hear nev sean a lamba fitted from factory it has to be aftermarket how meny wiars are coming out fron the sensor ?

Chris69

I'm sure they never came from factory with a lambda, must be aftermarket- can you follow the lead coming from the sensor in the engine bay?

jonny s2

iTrader: (12)

is it a mk4 mate as ive never seen this,altho you are in norway so this could be possible different spec to us??

fastford79

Yes the car is an import from germany. The lambda has 4 wires and look original. And when i took out the ECU there were no wires going were the CO potentiometer should have bin.

fastford79

Yes it's an mk4 cabriolet xr3i Efi