signal wire colour from lambda

vwmk3jon · August 23, 2010, 03:13:38 PM

Just need to connect the signal wire up from my AFRG and its working

Had a look at the wires from the lambda - 2 are white and 1 is black which i assume is the signal wire. Is this correct?

(note: i dont have a multimeter to check)

PeteG40 · August 23, 2010, 03:18:46 PM

its the purple one in the loom. i know that!

hayesey · August 23, 2010, 03:19:45 PM

it's one of the white ones if I remember correctly from the probe to the connector so pretty hard to tell which one. It's the purple wire from the other side of the connector to the ECU so you need to look there.

vwmk3jon · August 23, 2010, 04:35:20 PM

Black wire Paul

got it connected now. Just gotta wait for it to stop raining so i can put everything back together (bloody english summer!)

hayesey · August 23, 2010, 04:37:52 PM

and does it actually work?

vwmk3jon · August 23, 2010, 08:37:34 PM

Errrrr kinda. The light flicks round to lean when I drive normal and then goes out (mega lean maybe?) I'm gonna check and re-check the connections but the light stays on optimum when idling.

hayesey · August 23, 2010, 08:41:16 PM

it should fluctuate between lean and rich at idle. But then I'd assume it'd not do anything at all if you'd connected it to one of the heater wires. Is the wire on the other end of the connector purple?

did you ever get it remapped or is the fuelling probably still not right anyway?

vwmk3jon · August 23, 2010, 08:46:37 PM

Traced the wires up from the lambda to the plug and then found which colour wire connects to the purple wire and joined the signal to that.

Still not been remapped yet. Had to spend the cash I had set aside on unexpected bills

hayesey · August 23, 2010, 09:26:04 PM

yeah fair enough. it'll probably explain why it seems a bit weird so I'd say it's wired correctly

vwmk3jon · August 24, 2010, 02:38:17 PM

Must be uber lean. If i coast down the road, i get a light on (fluctuates as you said). Foot touches go pedal and it dips down and beyond bottom of lean

poloeatonm45 · August 25, 2010, 06:22:08 PM

i have mine connected to the purple wire and mine reads really lean quite a lot maybe i should get a propper remap soon

hayesey · August 25, 2010, 07:58:16 PM

Well to be honest the normal narrowband probe is pretty inaccurrate at best and so are some of the gauges. Can only really tell for sure with a wideband probe but lean isn't good!