Ok so had the car off the road for 3 months to change/build a gearbox and come to start and having issues with the Spartan 2. The only disturbance to the wide band side of things is I took the sensor out of the exhaust.
I looked at the fault finding guide and it states it could be sensor or Spartan.
I have checked that the unit is getting 12v and has a good ground. The green linear wire has 5.8v on it as soon as it’s powered up and stay on it.
The LED doesn’t light at all.
What do people think go for the LSU4.9 or order a new Spartan?