Lambda sensors

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Lambda sensors

Post by FrontBackSide2Side on Fri Feb 21, 2014 11:06 am

I was wondering, are the 2 lambda sensors on my van the same as each other? I.e can I swap them round? I'm still having trouble with a misfire and the lambda sensor fault code is the one that I am getting so I want to see if I can move the fault proving a faulty sensor.
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Re: Lambda sensors

Post by El_Ventu on Thu Mar 20, 2014 10:58 am

The lambda code can be a result of the misfire.
However lambdas usually are identical.

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Re: Lambda sensors

Post by FrontBackSide2Side on Thu Mar 20, 2014 12:21 pm

Thanks for the reply, yes i think this is the problem i have as i have a misfire. Seems to have been alright since i put a bottle of injector cleaner through though Smile
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Re: Lambda sensors

Post by HighlyJetted on Thu Mar 20, 2014 12:52 pm

Carefully describe your misfire, when it occurs - etc....
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Re: Lambda sensors

Post by FrontBackSide2Side on Thu Mar 20, 2014 3:12 pm

It doesnt seem to matter if its warm or cold but its worse under load (going up a hill etc) If i'm driving on the flat at part throttle its not really noticable.
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Re: Lambda sensors

Post by HighlyJetted on Thu Mar 20, 2014 7:52 pm

Coil packs, the rubbers/leads that take the spark to the plugs - that would be my first angle of attack.
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Re: Lambda sensors

Post by FrontBackSide2Side on Thu Mar 20, 2014 8:10 pm

I tested the rubbers/leads and they all measured around 1 ohm except one which i couldn't get a reading on so i changed it. The replacement measured near as damn it 0 ohms. Would 1 ohm for the other 3 be ok? I tested the coil packs and they were all in tolerance.
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Re: Lambda sensors

Post by El_Ventu on Sat Mar 22, 2014 2:38 pm

Take a look on valve lash.
I spent hours and hours to check, set and replace ignition parts on mine due to a misfire on LPG, last week I checked valve lash, I had two exhaust valve with no play... Sad
Done the setting, no one more misfire.

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Re: Lambda sensors

Post by HighlyJetted on Sat Mar 22, 2014 3:30 pm

That would cause your persistent misfire El_ventu.

You have been trying to cure this for what must be 2 years now.
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Re: Lambda sensors

Post by Poppi on Mon May 19, 2014 8:12 pm

Well i don't know a thing mechanically but i do know that even though all Daisys emissions etc are fine my Lambda sensor is missing ?
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Re: Lambda sensors

Post by FrontBackSide2Side on Mon May 19, 2014 8:50 pm

The one before or after the cat? i'm guessing after?
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Re: Lambda sensors

Post by HighlyJetted on Mon May 19, 2014 9:01 pm

Surely there is one in the manifold like every other 993cc efi?
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Re: Lambda sensors

Post by Poppi on Mon May 19, 2014 9:10 pm

Its the one in the manifold its snapped off but she runs fine but could be to do with my new stainless steel cat and exhaust system i just had fitted.
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Re: Lambda sensors

Post by HighlyJetted on Mon May 19, 2014 9:15 pm

Close loop won't work properly.
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Re: Lambda sensors

Post by HighlyJetted on Mon May 19, 2014 9:19 pm

Also your engine warning light should be on.

Does your engine warning light actually work?
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Re: Lambda sensors

Post by Poppi on Mon May 19, 2014 9:56 pm

Who knows?
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Re: Lambda sensors

Post by HighlyJetted on Tue May 20, 2014 1:28 am

It should come on when you first turn your ignition on.

But people take them out as they are rogue!

They also go pop if its been on constantly for years.

They also pop when some one deliberately connects the bulb to a battery charger.
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Re: Lambda sensors

Post by Poppi on Tue May 20, 2014 2:07 pm

Ok will go and check her later and see whats going on with lights lol I know none stay on or i would have noticed
Thanks for all your help and advice highly jetted
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Re: Lambda sensors

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