daz2713

hi all,
i've been having idling problem's for a while now i changed the idle control valve and i didn't fix it. plugged in a diagnostic tool in and it come up these codes
:P1151 O2 Sensor Heater Circuit Signal Intermittent (Bank 2 Sensor 1)

:P1131 HO2S 11 Indicates Lean

:P0171 System too Lean (Bank 1)

can anyone help as i haven't got a clue what these mean?

Spiky

iTrader: (1)

lambda sensor

Neil S

iTrader: (1)

Mine used to record 1171 and occasionally 1131, I put it down to a leaking inlet manifold gasket which I could never be arsed to sort. The 'heater circuit intermittent' code sounds like a wiring or sensor fault though

daz2713

yeah i might try changing the tps see if that does anything.

daz2713

can't be the lambda as the check engine light isn't on

thx anyway.

Neil S

iTrader: (1)

Won't be your TPS daz - I reckon Spiky is on the money with the Lambda sensors. There's one on each bank pre-cat and I think another one post cat.

My ST24 didn't have a check engine light!

daz2713

lol thats why it aint on then!

daz2713

The front manifold/exhaust is blowing could that be the problem?

Neil S

iTrader: (1)

Yeah I'd say so.

daz2713

i'm having the manifold done friday should sort it out hopefully £250.

thx for the help.