Running lean on bank 2

redzed · 14-09-14, 04:34 AM

Helping a friend out in oz has problems with a zs running lean on bank two, he's changed injectors, coils and plugs and still getting fault code, any ideas?

Skillen · 14-09-14, 07:10 AM

Faulty lambda?

fastmike · 14-09-14, 07:56 AM

If each bank has its own lambda sensor I'de look at that but first I'de look for an air leak on a vac hose ( or anything else air could get drawn in) on that side of the inlet manifold

welshone · 14-09-14, 08:31 AM

Possible blockage or damage to the fuel rail???

Mark S · 14-09-14, 08:42 AM

lamda/02 sensor

MG ZS STE · 14-09-14, 10:46 AM

Get the code, could be p0138 or p0141.

talkingcars · 14-09-14, 12:00 PM

Isn't P0141 to do with the heater in the probe?

redzed · 15-09-14, 06:50 AM

the fault code is p174, anyone know what that is?

Skillen · 15-09-14, 09:00 AM

Quote:

Originally Posted by redzed

the fault code is p174, anyone know what that is?

Lean running bank 2 as you say.
Need to check lambda sensor in bank 2
Not sure if that's front or rear bank as I'm not sure how our engines cylinders are numbered but bank 2 is normally the bank without cylinder 1.

MG ZS STE · 15-09-14, 09:21 AM

had a similar thing but posted about it over on XPF. if you do a search on P0174 over there its in the results.