O2 Sensor, Idle Problem

[CATKICKER]

Hi Guys, I am having an issue with my idle...

When I come to the lights, the revs will sit at 1500rpm for about 5 secs or so and then drop down to around 900rpm... It's annoying me!!

I have cleaned the AFM, Re-soldered the internales of the AFM and cleaned the ACC valve. I have also checked vaccume hoses ect and can't find anything.

The only thing that I can now think of is the O2 sensor (I have recently replaced the stock dump with a 3" jobbie).

Where do I get one from? Can I just use a universal one or is it the same as the VL turbo??

Can anyone suggest what else it may be?

Thanks all!

Todd

[mad082]

more info needed. car, motor? i know that you can buy a NGK sensor for about $110 for the rb25det, and the rb20det. i don't know if they are the same plug. i gather that the non turbo would be the same, but not 100% sure on that. but the sensor for the rb25det is the same as a SSS pulsar (sr20 motor).

but my old SSS pulsar does the same thing when you stop though. what is your fuel economy like?

[CATKICKER]

Thanks mate...

R32 GTS-t (RB20det).

Mods:

FMIC

EBC

Dr Drift remap and tune

3" Ex + Dump

Pod

R34 Turbo

Irridum Plugs

Bosch 040 Fuel Pump

I do a bit of highway driving to and from work and generally get 350-400km's to a tank...

I have recently replaced my coils due to missfiring, and as I said have done the AFM and ACC valve.

In my mind this is the next step? Would you agree?

[mad082]

it really comes down to the map that the ecu is running on. you may change the o2 sensor and have it still do it. its a fair bit of money to get rid of it. come to think of it i think my car does it (r33). i will check over the weekend. i know it used to do it, but i haven't taken much notice for a while. i did replace my o2 sensor a while back (trying to get better fuel economy). didn't make a difference to fuel economy. i'm about 90% sure it used to do it, but i'm not sure if it still does.

[CATKICKER]

Cheers!

I might try unplugging it and see what happens. Just out of interest!

[CATKICKER]

have unplugged it and it running sweet... must be a shagged sensor!

I have ordered one off ebay for an EL falcon for $58 shipped!

ALL DONE! Thanks for your advice