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  #1 (permalink)  
Old Dec 27th, 2013, 01:16 PM
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United-Kingdom Yellow engine light OBD recomendation

Hi,

My 2003 one petrol, yellow engine light came on today. I've read that this maybe due to some emission fault or even a loose petrol (gas) cap.

To be sure I want to get a cheap ODB fault code reader, but it's a mine field out there when trying to choose one. And not owning one before didn't want to make nubbie mistake.

I found this:
Unable to post URL's yet - Doh!
on eaby odb reader with this title
"Universal Car Fault Code Reader Engine Scanner Diagnostic Tester Tool OBD2 D900" 9.95

Nice little cheap unit and I have a complete list of codes including the mini specific codes on laptop ready.

Would anyone who has a cheap odb2 reader advise if a bog standard code reader like the above is going to give me the information for my mini? Failing that perhaps recommend something cheap to do the job?

thanks
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Old Dec 27th, 2013, 06:40 PM
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Hi ya

Looks ok for a basic one will do what you need.
The Other options there may be a member locally to you that my help out.
Failing that are you a member of a break down service such as AA, RAC

The eml light could be on for a few reasons. it's a good chance it's a lamba sensor but you need the code from the DME. Before rushing in spending you hard earned
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Old Dec 28th, 2013, 08:34 AM
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Quote: Originally Posted by marque (original)
Hi ya

Looks ok for a basic one will do what you need.
The Other options there may be a member locally to you that my help out.
Failing that are you a member of a break down service such as AA, RAC

The eml light could be on for a few reasons. it's a good chance it's a lamba sensor but you need the code from the DME. Before rushing in spending you hard earned

Great, I ordered the reader so will see what codes we get when it arrives. BTW I forgot to mention the car drives perfectly so apart from the light there appears to be no issue, so hoping this will be a small cheap issue to correct, fingers crossed. Going to google "lamba sensor" now...

thanks
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Old Dec 28th, 2013, 09:39 PM
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Hi ya

RealOEM.com * BMW R50 One 1.6i Exhaust manifold with catalyst

If your car has been using a lot of fuel or running rough it's a good chance it may be the sensor.
But don't go rushing in to things before you get the code. You could do the basics first check your spark plugs, air filter also pull of you no 4 spark plug lead of the coil pack make shore it's not corroded.
It's free and easy to check

Where in the country are you

Hope it helps
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Old Dec 29th, 2013, 11:15 AM
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Quote: Originally Posted by marque (original)
Hi ya

Where in the country are you

Hope it helps

Thanks for your help!

I'm near Lutterworth, south of Leicester.

The engine is running fine and no signs of any problems... Mileage is high 136k so if on original sensors probably needs changing as I read BMW recommend 100k interval.

Looking at that diagram the exhaust outlet is nearest to the bulkhead, so inlet must be at front.
Do I access the lambda sensors from under the car or is it possible between the bulkhead and the manifold from above? For some reason I though the exhaust came out from the front of the car.
Also is it worth removing the sensors and cleaning them as well as checking / cleaning connections?
There are post cat Lambda sensors on ebay for 30 (new), so I guess from the description they are not the same sensors, before and after cat, can you confirm?
Can't do anything till ODB reader turns up, not marked as despatched yet due to holidays so probably looking towards middle to end of next week.

Thanks
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Old Jan 6th, 2014, 12:21 PM
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Reader turned up today and I get two codes:

P2270
O2 sensor signal stuck lean bank 1 sensor 2

P0420
Catalyst System Efficiency Below Threshold (Bank 1)

Car dives fine, no mods.

Does P2270 Does bank 1 sensor 2 refer to the 2nd O2 sensor after the cat?

Perhaps I need a new cat converter?

Anyway, I have reset the codes and will wait to see what errors come back.

Any advise?
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