Eml is on. Help please

[Mr2paul]

Hi all, had a B road drive with lots of accel n gears etc,,, you all no.
Eml is now on. What have I done ??  Can get a code reader but do not no where it can plug in,,, if at all ?  Any advise welcome.

[shnazzle]

Hi all, had a B road drive with lots of accel n gears etc,,, you all no.
Eml is now on. What have I done ??  Can get a code reader but do not no where it can plug in,,, if at all ?  Any advise welcome.

Don't panic yet. Most likely an o2 sensor. 

The plug is (assuming right hand drive) by your right knee. It's uncovered.

[Ardent]

Bit late for tomorrow, but a code reader/ Bluetooth dongle is your friend and torque Pro.

Get those. Read the code. And we can go from there.

Couple members up your way, that might be able to read in the meantime.

I'm free but too far away.

[1979scotte]

Definitely nothing to worry about short term

[paulj]

As others have said, probably nothing to worry about.  If the engine still sounds good it is likely one of the emission control items.  Almost always an O2 sensor.

Did you find the OBD socket?  Just behind the lower dash trim as explained, you might need to get your head in the footwell to see it but after that you can find it by touch.

When you get a code a whole world of advice will spring open on here......

[stewart@boro]

If you are anywhere near Middlesbrough/North Yorkshire I could meet and read the codes for you.
Just let me know, have to get a new battery for my 500x tomorrow then got the day free.

[Mr2paul]

Thanks to you all. No progress made. I'm feeling rough with cOvid now so I'll be locked away for a while.

[Carolyn]

Thanks to you all. No progress made. I'm feeling rough with cOvid now so I'll be locked away for a while.

Sorry to hear that.  Here's wishing you a swift recovery.

[Chilli Girl]

Thanks to you all. No progress made. I'm feeling rough with cOvid now so I'll be locked away for a while.

Do hope you feel better very soon.

[Joesson]

Very best wishes for a swift and full recovery, hopefully the Good Samaritan @stewart@boro was not called upon.

[Mr2paul]

Finally fixed my code reader which had corroded battery contacts, so beware of my mistake for leaving batteries in it. Code was po420 catalyst efficiency below threshold bank 1. Reset ok but will it return??

[Joesson]

Finally fixed my code reader which had corroded battery contacts, so beware of my mistake for leaving batteries in it. Code was po420 catalyst efficiency below threshold bank 1. Reset ok but will it return??

That was a quick recovery.

[Mr2paul]

Believe me, if had taken more than 2 mins I would have not bothered lol.

[Gaz mr-s]

Is your exhaust system o/e?

[Joesson]

Finally fixed my code reader which had corroded battery contacts, so beware of my mistake for leaving batteries in it. Code was po420 catalyst efficiency below threshold bank 1. Reset ok but will it return??

That was a quick recovery.

Mr2 Paul said :
"Believe me, if had taken more than 2 mins I would have not bothered lol."



I was referring to your recovery from Covid Virus!

[Zxrob]

Finally fixed my code reader which had corroded battery contacts, so beware of my mistake for leaving batteries in it. Code was po420 catalyst efficiency below threshold bank 1. Reset ok but will it return??

I have the same code on mine but I am running de-cat exhaust, mine will come back on during a good run, anything from 50-100 miles

Rob

[normanh]

Currently having the same problem, have bunged in a can of cataclean reset the code driven about a 100miles and it hasnt reappeared. Left the emissions data in my recent thread, it just passed a test before Christmas. Will have to plan a replacement in the future.

Norman

[Mr2paul]

Yes joesson I was referring to cOvid.
The exhaust I think is oe except toyosport manifold.
I did read that a sensor extension fitting may cure this as it takes the sensor out of the main gas flow and also that the sensor is too sensitive, but it's all mind boggling when you start reading about fuel trims, maf readings, vac leaks etc, I'll see how it goes in future cos I can't go out for a while yet.

[normanh]

Get your emissions checked mines borderline on Co with a P0420 code cat efficiency, on a recently purchased Bluetooth module it shows a cat failure - no code showing and I have reset the eml.

Norman

[Gaz mr-s]

The O2 sensor spacer is usually used post-cat, I think in conjunction with a cat-less mid-pipe.
You don't want to remove the sensors unless essential, they're pretty fragile.

[Carolyn]

If you have the cat that came with the car when new, it is almost certainly nearing the end of its life.

Cats2u has aftermarket cats that do the job well and for a lot less dosh than OEM.

One caveat is you may also need a fitting kit to go with it.

From an environmental point of view, there's a reason we have cats and isn't simply trying to dodge the issue, tempting as it is, a tad anti-social?

[Mr2paul]

I see your point and it makes sense. The article said the sensors are sensitive and easily throw up codes, so without some clever diagnostic stuff it could be a multitude of reasons. My only starting point was that it happened during many gear changes under hard acceleration.

[Mr2paul]

Would eBay or buying direct be the best option and what would I expect to pay ? Thanks

[Gaz mr-s]

I wouldn't be jumping at buying a cat just yet. I would think it would worthwhile checking the sensors performance first.  Maybe a can of Cataclean or similar through it.
 

[Ardent]

If talking cats.

Either go to their website or search here.
Some very recent posts re costs.

If talking sensors. Ebay, amazon or sparkplugs.co.uk