S Type Bank 1 too lean
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S Type Bank 1 too lean
I have a 2003 S Type R. Fault code is P0171, bank 1 too lean. The "reduced performance" signal comes and goes intermittently. I am guessing an air filter, MAF or vacuum leak issue would also yield a P0174 for bank 2 as well. I am thinking a bad O2 sensor, does that sound reasonable? (I would think that would be a code as well). I seem to recall a couple of years ago the car was scanned and there was some issue with O2. I think bank 1 is passenger side-correct? Also, is it hard to change that sensor, any guidance in that regard is welcome....
Fred Emmerich
Fred Emmerich
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That's hardly any drop so you're probably looking at something other than an air leak.
That leaves the rest of the list in the workshop manual / codes PDF. Free to download off this site or JagRepair.com - Jaguar Repair Information Resource
I'd clean the MAF (with great care) and if not recently done change the fuel filter.
That leaves the rest of the list in the workshop manual / codes PDF. Free to download off this site or JagRepair.com - Jaguar Repair Information Resource
I'd clean the MAF (with great care) and if not recently done change the fuel filter.
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