440 turbo AFR guage

frogster · Aug 10th, 2009, 09:18

Looking to fit an AFR guage and wanted to know which is the signal wire coming from the lambda sensor back at the ECU
Regards
Kevin

Clan · Aug 10th, 2009, 11:33

you wont get much of a useful reading from this signal it will just vary all the time up and down about twice a second from weak to rich and will be meaningless ...

blaze · Aug 10th, 2009, 12:22

you need 2 tap into the black wire from the sensor using a wire tap which are cheap 2 buy and they only jump alot if using a 1-2 wire sensor (non-heated) or if you have a narrow band gauge with a wide band sensor

frogster · Aug 11th, 2009, 17:37

Thanks for the info, all wired in and managed to have a look at the ECU but cannot find a black wire going to it, would it have changed in the wiring harness, dont fancy taking the ECU from its mounting to look at the pin number to find it. A bit tight getting in there.
Regards
Kevin

blaze · Aug 11th, 2009, 23:39

dont go from ecu go from the sensor as its much easier to find plus you dont want 2 to damge any other wires which your more likely to do the closer you are to the ecu

Aug 10th, 2009, 09:18	#1
frogster the stealth brick Last Online: Apr 25th, 2019 09:42 Join Date: Dec 2004 Location: nottingham View Photos By: frogster	440 turbo AFR guage Looking to fit an AFR guage and wanted to know which is the signal wire coming from the lambda sensor back at the ECU Regards Kevin

Aug 10th, 2009, 11:33	#2
Clan Experienced Member Last Online: Today 11:30 Join Date: Jun 2007 Location: L/H side	you wont get much of a useful reading from this signal it will just vary all the time up and down about twice a second from weak to rich and will be meaningless ... __________________ My comments are only based on my opinions and vast experience .

Aug 10th, 2009, 12:22	#3
blaze New Member Last Online: Aug 24th, 2011 21:42 Join Date: Jul 2009 Location: hastings	you need 2 tap into the black wire from the sensor using a wire tap which are cheap 2 buy and they only jump alot if using a 1-2 wire sensor (non-heated) or if you have a narrow band gauge with a wide band sensor

Aug 11th, 2009, 17:37	#4
frogster the stealth brick Last Online: Apr 25th, 2019 09:42 Join Date: Dec 2004 Location: nottingham View Photos By: frogster	Thanks for the info, all wired in and managed to have a look at the ECU but cannot find a black wire going to it, would it have changed in the wiring harness, dont fancy taking the ECU from its mounting to look at the pin number to find it. A bit tight getting in there. Regards Kevin

Aug 11th, 2009, 23:39	#5
blaze New Member Last Online: Aug 24th, 2011 21:42 Join Date: Jul 2009 Location: hastings	dont go from ecu go from the sensor as its much easier to find plus you dont want 2 to damge any other wires which your more likely to do the closer you are to the ecu

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