The two white wires for live and earth which strong source is ideal to take them from under the bonnet or are they best from inside somewhere?

Many thanks

 

i may be wrong but what about the fuse box and run it through the bulk head ive had loads of digital clocks done this way but please dont quote me on it i may be wrong on this for a lambda buddy.

 

I just need to know what is the best heater feed to use as I'd like a decent connection

 

Why not run a relay feed from the batt and pick up an ign live as a switch ? That way you get. Full 13v with no worry of melting anything

 

I use the fuel pump feed Chris that way the lambda heater is only on when the fuel pump is running.

By doing this that usually means the lambda is only running when the engine is running because of the fuel pump run system controlled by the ecu.
This means the lambda heater will not overheat as it will always be cooled by the exhaust gases.

If they are wired to a straight ign feed the sensor can overheat if the ign is left on for long periods with the engine not running. This can lead to premature sensor failure.

 

pm sent James