Hello and good evening everyone,

I have a light coming on the dashboard telling me that the oxygen/lambda sensor could be faulty. Now I have done some internetting and Im really confused (doesn't take much). Having looked at the sensor I can see four wires going to two plug connectors. Can anyone send me a link for the correct sensor to buy as I have Goooooogled plenty of options and terror has reigned and Im wet! My Fiat Panda (the fly) is a 1993 152a.246 / 53amp / engine no 4877173. Any help on this matter will help me dry off. Thanks.

The injector light being on does not necessarily mean the ambda sensor is at fault. It is a fault code light and could mean there is a problem with another part of the injection system. Before you replace the lambda sensor it is worth plugging a laptop into the car and seeing what fault codes are given. Might be one of the other sensors or possibly some broken wires.

If it's the 2 plug type this fitted mine:
http://www.ebay.co.uk/itm/390960535990?_trksid=p2060778.m2749.l2649&ssPageName=STRK:MEBIDX:IT

bring it over to us, we have a computer that can read the fault code. i wonder if i can fix the fault without replacing anything....

and a small note when dealing with lambda/oxygen sensors.. it does not matter what it is off, they all do the same thing throughout all cars.
the wires are pretty simple on 90's petrol cars..

the 2 white wires are for the heater which warms the sensor up.
the black wire is the wire that carries the data from the sensor (in volts)
the grey wire is an earth.

any lambda sensor from FIRE engine or 899cc OHV Fiat will work with the magneti marelli ECUs.

you just have to use the plugs from off the old sensor

Thanks Dude, will take you up on the offer. PM your number and I'll give you a tinkle.

Hi guys, sorry to dig up an old thread, but can any of you link me to the correct lamda for my 1995 CLX? reg is M856 RHH, finding lots of conflicting fitments available, any help would be hugely appreciated

pretty sure that it will be the 2 plug each with 2 pins setup. however it may be a single 3 pin plug.

i know they changed them throughout cars and honestly i am not sure what the panda takes.

first off though, try taking the thing out.. give it a clean and get it to glowing point using a blow torch. you may find that fixes it

I'll take a look today. Is it impossible to access the sensor without having the front raised? I'm assuming it's screwed into the front pipe.

Mark0 said:

I'll take a look today. Is it impossible to access the sensor without having the front raised? I'm assuming it's screwed into the front pipe.

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Sensor connections will be in line and behind the OS headlamp which should enable you to tell which type it is. I suspect it'll be a 4 wire 2 plug setup.

All being well this will be the bad boy you want, and a bargain at that! Plugs should look like the ones in this listing

http://www.ebay.co.uk/itm/915mm-Lon...:Panda&hash=item2c90e1f14f:g:k-wAAOSwB4NWwAIB

Fantastic. A quick look and I have deduced I need a 2 plug, 4 wire version so the above link is perfect. Also my sensor plugs into the manifold, so is accessible without raising the car, will attempt this myself. Only other question is will I need to reset the ecu after changing it and how would I do this?

no ecu reset really needed but i'd do it.. just leave the battery off over night with the door light turned on (so any built up power has somewhere to drain to)

Mark0 said:

Fantastic. A quick look and I have deduced I need a 2 plug, 4 wire version so the above link is perfect. Also my sensor plugs into the manifold, so is accessible without raising the car, will attempt this myself. Only other question is will I need to reset the ecu after changing it and how would I do this?

Click to expand...

One thing I'd have said is nearly almost essential from experience when removing Lambda's is a blow torch and time - heat the exhaust around the sensor and then try and twist, and repeat time and time again until it comes out

Most Easterly Pandas said:

Sensor connections will be in line and behind the OS headlamp which should enable you to tell which type it is. I suspect it'll be a 4 wire 2 plug setup.

All being well this will be the bad boy you want, and a bargain at that! Plugs should look like the ones in this listing

http://www.ebay.co.uk/itm/915mm-Lon...:Panda&hash=item2c90e1f14f:g:k-wAAOSwB4NWwAIB

Click to expand...

Absolutely the correct item, very easy to fit, no blowtorch required!

Quite proud of myself as I've managed to fix my injector light problem and performance has increased by miles!

Now I have to try and nail down a small oil leak from rocker cover area, perhaps I should do my own progress thread, because I'm finding I'm working on this car a lot and my confidence as an amateur mechanic is rising with every new challenge

That was one of the biggest next to cost key factors during design process. Keep the good work and enjoy the benefits of Panda simplicity.