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i have installed a Auto Meter Air Fuel Ratio gauge in my R33 yesterday, all i need to do is connect the signal wire. Does any know which wire to connect this to?

hook it up to the oxy sensor middle wire on the harness connecting plug , black wire , well thats what i did on my r33 rb25de harness and it works . or alternatively hook it up to pinout 29 on your ecu

NICE! i too have my gauge in but havent connected the signal wire. ive posted and no one has NFI about which pin it is on the ECU for a RB20DET.

If worse comes to worse ill just splice it off the o2 sensor wire in inbetween the 02 sensor and ECU, but the pin would be prefrered.

Hey Guys

I need to know this and will post up the details if my contact pulls through tomorrow.

I am installing a Autometer Air/Fuel Ratio Gauge into a Series 1 R33 GTST

Will keep an eye on this topic, but will inform you if I find out myself.

Doing the install Saturday

Cheers, Chris

Are the RB20DET and RB25DET ECU pinouts the same ? Where can I get the pinouts for the RB20DET ECU ???? I need to connect my AFR guage and Fuel Computer and don't want to splice in the engine bay.

Cheers,

ok, connected it up to pinout 29. works, however, only on one side of the gauge. does anybody know what the voltage range is on the stock oxygen sensor? because i was getting a negative voltage at one stage using my multimeter. and i know that the Auto Meter gauges are designed for 0 - 1 volt. has anyone installed one of these and it is working correctly?

can i just say why bother? the reading you get from these things is next to useless. seems like a waste of time, money and dash space for what is essentially pretty, sparkly LEDs.

can i just say why bother? the reading you get from these things is next to useless. seems like a waste of time, money and dash space for what is essentially pretty, sparkly LEDs.

no you can't just say that. if you've got nothing constructive to add to the thread, don't post.

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