Thread: Engine 850: B5252S/2.4/10v: - Missfire/plug leads
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Old Mar 4th, 2008, 22:12   #52
LPGjonderby
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Last Online: Sep 8th, 2009 10:20
Join Date: Jan 2008
Location: Uttoxeter
Question Missfire is back !

Guys

Having had my S70 fault codes read last week, the water temp sensor & air temp sensor were replaced. The fault codes were erased.

It then ran fine for 3 days on petrol, then I tried running on LPG, this was fine until this morning. It has started to missfire again around 3,000 revs on petrol & gas.

At the time of having the codes read it was running very lean as the adaptive settings were out. This was reset and was fine. I can only assume the adaptive settings have started to go awol again and are leaning the mixture off.

Is this likely to be because of a faulty lambda sensor ?

The original one has done for 132k miles, how long do they usualy last ?

I have spotted a titanium one suitable for an S70 bi-fuel on ebay, any ideas if this item is any different to the standard S70 unit my car has?

Item number 250215145835

Thanks

Jon
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