t5frankie

Last night my engine management light came on, the day before i had a 3" turbo back exhaust fitted, the exhaust had a lambda hole up th top of the downpipe, i moved it to where it should be on my 03 blobeye, was ok for a day and a half now got this light on, i'm assuming its because of the lambda sensor getting to much fumage cos it aint got a cat now? how do i get rid of the light? its running as before at the moment

JDM_Stig

iTrader: (3)

code 0420 is my guess,
Needs mapping for the new zorst

t5frankie

is it going to start running rough? Has anyone used a lambda boss extender for the sensor?

The Pink Ninja

iTrader: (23)

As above it's probablly the cat sensor threshold code due to decat, You can get it mapped out as it would need it anyway now IMO

Alternatively get a cheap OBD scanner and delete the code yourself, Only problem with this is that you will need to do it regularly as it will keep coming on mainly after a longish run or at continuos speeds of 50mph+

Midlife......

iTrader: (2)

As Stig says it's OBD II Code P0420, cat below efficiency....... most travelling mappers will switch this off for the price of a few pints if one is passing through on an opensource group mapping session.

That's if you don't want to pay for a full re-map.

Won't affect the running of a WRX but STi's not allways happy.

Shaun

Jolly Green Monster

iTrader: (4)

As above. Needs mapping for exhaust and emissions light turned off

Bob Rawle

Hayward and Scott will sell you a "fix" to stop this, not 100% reliable but works most times.

Like Simon I would say you should get the car remapped to accommodate the exhaust or at least checked for det and correct afr's before you drive it aggressively.

cheers

bob

Midlife......

iTrader: (2)

Hi Bob

I used a Scoobysport CEL Fix way back when and it wasn't 100% until you turned it off in about 2003 IIRC

Shaun