Lambda

**VECTRAMAN** · 9th January 2009, 16:48

Car just failed mot on emission readings. EML light is on and code reading p0170, how likely is it to be the lambda at fault and are they common to go vectra c.
Sorry by the way 1800 engine

**Ste** · 10th January 2009, 14:50

p0170 is fuel trim bank one,

Could be O2 sensor.

**VECTRAMAN** · 12th January 2009, 14:52

Sorry if I sound a bit of an arse, but isn't O2 short for oxygen which would then mean that is the Lambda as this is A.K.A as oxygen sensor.

**big rich** · 12th January 2009, 14:55

Originally Posted by VECTRAMAN

Sorry if I sound a bit of an arse, but isn't O2 short for oxygen which would then mean that is the Lambda as this is A.K.A as oxygen sensor.

yes it is m8

**Ste** · 12th January 2009, 14:57

Yes, it is an O2 sensor, lambda is the air / fuel ratio term.... Just to be geeky.

**VECTRAMAN** · 13th January 2009, 16:56

Cheers guys ,changed today came off really easy.Re test thursday so fingers crossed,

**VauxVeteran** · 13th January 2009, 17:06

If that don't sort it, you need 1 new air filter and 1 bottle of injector cleaner in half a tank of juice, give it a 20 mile run when hot with illegal speed spurts where safe to do so, and on the day have the car as hot as possible when you take it in for testing and ask for the gas test to be done 1st, hth.

I've a feeling they've mugged you here, probably tested it with a half warm engine.

**big rich** · 13th January 2009, 17:08

Originally Posted by VECTRAMAN

Cheers guys ,changed today came off really easy.Re test thursday so fingers crossed,

your lucky m8 these can sometime be a right pain in the 455

**Ste** · 13th January 2009, 17:13

Did you use a sensor socket? Or just use a spanner?

**VECTRAMAN** · 14th January 2009, 10:33

Used a Sensor socket only cost £8 from local motor factors. No room for a spanner in there rad toooo close and manifold shield stops u turning it. Advise spray WD40 on cold manifold day before then remove when hot , came out litle effort.