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Author Topic: lambda sensor  (Read 1160 times)

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rinkleyrob

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lambda sensor
« on: 11 January 2011, 15:45:04 »
Hi can anyone tell me where the lambda sensor is on my 2.2 auto petrol 2001 model omega, and how difficult is it to replace. thanks
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Andy B

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Re: lambda sensor
« Reply #1 on: 11 January 2011, 16:22:05 »

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Hi can anyone tell me where the lambda sensor is on my 2.2 auto petrol 2001 model omega, and how difficult is it to replace. thanks

I'm sure I'll be corrected if I'm wrong but I'm sure that a 2.2 has 2 catalytic converters hence it also has 2 lambda/oxygen sensors. They are the only electrical connections on the exhaust.  :y
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rinkleyrob

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Re: lambda sensor
« Reply #2 on: 11 January 2011, 18:30:54 »
Hi thanks for your help, 2 cats eh just what I wanted to hear.
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Andy B

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Re: lambda sensor
« Reply #3 on: 11 January 2011, 18:33:59 »
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Hi thanks for your help, 2 cats eh just what I wanted to hear.

you'd have 4 if you drove a 2.6 or 3.2  ;) ;) ;)

There's a pre-cat, than a lambda, main cat and then another lambda sensor.  :y
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RobG

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Re: lambda sensor
« Reply #4 on: 11 January 2011, 18:34:23 »
What makes you think one of your O2`s has gone
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rinkleyrob

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Re: lambda sensor
« Reply #5 on: 11 January 2011, 18:35:58 »
That makes me feel a little better
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rinkleyrob

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Re: lambda sensor
« Reply #6 on: 11 January 2011, 18:43:32 »
Had 2 new middle and rear box fitted recently after a couple of weeks sounded like it was blowing then eml came on had it diagnosed mechanic code stated came rich / lean exhaust reset it but has come on again after a few days, giong back to exhaust fitters tomorrow to get it checked out
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diplo-matt

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Re: lambda sensor
« Reply #7 on: 11 January 2011, 18:47:07 »
Aside from live data, anyone know of a way to check wether the lamdas are fault on these. My cars a bit juicy at the minute, im not sure whether its timing for the lamdas?
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rinkleyrob

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Re: lambda sensor
« Reply #8 on: 11 January 2011, 19:36:52 »
forgot to add been running a little rough when cold
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Welung666

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Re: lambda sensor
« Reply #9 on: 11 January 2011, 20:34:20 »
Right, the code you'd have got is P0170 Rich/Lean Fuel Trim Bank 1. Rough running when cold along with the code P0170 is a sure sign your MAF (Mass Air Flow Meter) is farooqed. Try looking in the parts for sale section and PM'ing RobG (you won't be able to reply to his thread as you don't have enough posts yet). He is breaking a 2.2 at the moment :y
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Andy B

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Re: lambda sensor
« Reply #10 on: 11 January 2011, 20:39:05 »
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....
1. Rough running when cold along with the code P0170 is a sure sign your MAF (Mass Air Flow Meter) is farooqed. .......

Why's that Lee? .............obviously not doubting you at all  ;)
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Welung666

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Re: lambda sensor
« Reply #11 on: 11 January 2011, 20:42:56 »
Had it a couple of times on customers cars and the gay coloured gold saloon I had. P0170 and running like a bag of nails when cold.

Rob as a quick test, when it's cold unplug the MAF (plug on the tube coming from the air filter housing just behind the drivers side headlight) before you start it up. See if it runs any better. If it tuns better then you'll need to replace the MAF :y
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diplo-matt

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Re: lambda sensor
« Reply #12 on: 12 January 2011, 15:01:44 »
Anyone know the code for the lamda?
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Welung666

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Re: lambda sensor
« Reply #13 on: 12 January 2011, 15:51:48 »
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Anyone know the code for the lamda?

Fault code or part number?

Did you try what I suggested?
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rinkleyrob

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Re: lambda sensor
« Reply #14 on: 15 January 2011, 12:14:59 »
Hi it appears that the cat is leaking so will have to replace, does anyone have the part numbers for the 2 lambda sensors, thaks
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