Oxygen Sensor

[HerTURBO]

Just recently had some work done on my car, now when I start the car is fine for the first minute or so than the revs drop and it has a fit for about anther minute or so then the revs will go back up to normal, anyone know why.

The guys changed something in the custom tune but it didnt work.

He thinks I should change the oxygen sensor coz hat could be sh*tty, is there away of being able to clean the sensor.

Or does anyone else have any ideas wat it might be.

[RHR]

Try cleaning the throttle body first with a bit of carby cleaner

[turbo.vixen]

I cleaned mine and it idled better for a few days but now its back to normal so I think im up for a new one also

[ghost]

Genuine ford one's are on ebay for $62 from melbourne...I bought one the other week!!!

[GreenXR6T]

I had the oxygen sensor go on mine and it brought up the engine light.

Dunno if that's the case in all faults with it?

[turbo.vixen]

did it run differently?

[Redback]

Try resetting your TPS. Hold your foot flat to the ground and wind the engine for about 10 sec. Let go and then start the engine as per normal. Also as mentioned clean your throttle body out. Hope this helps..

[GreenXR6T]

  turbo.vixen said:

did it run differently?

No, not really. Just had me worried cause it was after a custom tune too.

It only happened once I booted it and I backed off once the light came on.

It wasn't constant either, only sometimes did it come on.

It logged it on the computer and the tuners scanner picked it up.

I think he could test it too. It had something to do with a graph that didn't change IIRC

[HerTURBO]

I have already cleaned the throttle body not that long ago didnt really chance anything, as for the TPS not sure I want to do that coz the guys reckons it can F**K up other stuff

I was readying in an older topic that someone was asking who can change the oxygen sensor - they said more or less any machanic I want to change mine myself the guy who tuned my car said that would be fine and I wouldnt do anything to the tune.

[Redback]

Can't see how winding the engine over for 10sec can stuff anything up? Perhaps your starter or your battery if they are on their way out. It's a good way to load test your battery if anything. I am an Auto Electrician so I'm not just blowing smoke up ya. I'd definately give this a try first!

Have you had your ecu scanned for any faults? Most times when a sensor is only intermitantly faulting it won't keep the ecu light on, however it will log an fault code in the ecu which needs to be scanned to be found.

A quick run on a dyno will tell you if your A/F mixtures are correct.

You can change the sensor yourself (not an over complicated job) with no effect to your tune.

Hope this helps mate.