O2 Sensor wire

[seacombe2379]

On the ecu which wire is the O2 sensor so i can set up a air/fuel ratio guage
it on a 182
many thanks if anyone can help

 

[ben_p]

dont tell me thats an ebay 40bhp thing

 

[seacombe2379]

no its not its an apexi auto timer that a mate give me for 20 quid everythin works on it apart from i need to connect the O2 sensor wire

 

[Mole]

the o2 sensor will be the lambda sensor, it'll be in the exhaust near the catalytic convertor.

 

[seacombe2379]

i have two then which one

 

[Guy]

most decent AFR meters have their own lambda sensor and a screw in 'collar' that you weld into the exhaust system so it takes independant readings.

i believe tapping into the standard wiring can sometiems cause innacurate readings. and as your ECU uses this signal i believe sometimes it can create electronic problems...

 

[Mole]

the one before the catalytic convertor I'd guess.

They're prob 3 wire o2 sensors, 2 are the heating wires, 1 is the signal, i'm not sure how you can tell them apart

 

[Guy]

http://www.lambdasensor.com/main/mcolours1.htm

 

[seacombe2379]

cool thanks guys ill have a look and tell you what happens it said in the manual for it it wouldnt disurb the ecu cause of the design of the equpment either way my car thnks there is something wrong cause of the decat i get that little orange light on the dash