stevied2

Could anyone tell me where to find it please?

I fitted Dawes AFR meter, all joints soldered, wired direct to (+) & (-) on battery. Not giving correct readings

I posted a thread under AFR Readings a few days ago explaining the readings it was giving.here

Could it be the Lambda sensor which is faulty?
What else could it be please?
If it is the sensor are they easy to replace?

Many thanks Steven.


[Edited by stevied2 - 12/18/2002 8:40:27 AM]

dowser

Not familiar with the Dawes AFR, but I assume there are two earth wires - one for power and one for the lambda signal? If not, there should be

The signal ground wire should be connected to the lambda signal's earth wire into the ecu.

Lambda sensor is at the top of the downpipe - check continuity from lambda back to the ecu wire you've crimped into (if you're not confident of crimp, then cut and resolder). Same to identify the signal shield wire.

You need to use the separate ground wires because lambda signal is very low voltage; .8v bad, .9v good. It's not uncommon for there to be a .1 voltage drop across earthing infrstructure.....

Richard

stevied2

Have re soldered the joints, hence the queery about Lambda sensor.

Will check the continuity of wire from sensor to ECU later, thanks.

Steve

tweenierob

Have you tested the voltage readings at the AFR??
If so, do they match the readings at the ecu??
As said, the earth can make a big difference.
Rob

stevied2

Will have to try voltage check at weekend, coz my mate has voltage checker.

Thinking it could be Lambda sensor, as exhaust has been changed from original to full decat and back to original.

Then I bought the car so, just wondering if it may have been damaged in change over, is this possible? as I have never seen a Lambda sensor and dont know if this would damage it.

Thanks Steven

SiPie

One drop of the downpipe and they can knacker up

Been there, done that

stevied2

"Bloody hell" just got price for new sensor from Dealer

£96.95 + VAT for the part, then fitting on top

Jay m A

iTrader: (2)

What MY car do you have? The lambda sensor is in the manifold (headers) on early cars as opposed to the downpipe on the later cars. I'm not sure what year it swapped over but I'd guess at MY97 or thereabouts.

Justin

stevied2

It's a MY00, so should it be in the downpipe then?

STi wanna Subaru

iTrader: (1)

Steven,

Fitting is a job you can do yourself. Best thing is to remove the intercooler to get to the Lambda in your downpipe and then it's a 2 minute job to swap them over

:-)

I have an uprated wideband bosch one for sale, £100 + postage. I believe they are close to £200. This will out last an OE one also.

Based in West London.

Mail if interested.

[Edited by :-) - 12/19/2002 9:39:31 AM]

stevied2

What's a Wide band?
Sorry for my iggnorance as i'm not that technical

nom

I'd be very interested in a wideband if it is a true wideband (and I'm in west London - ish ) but I've never seen one for under a grand before...?

stevied2

Just been looking at Wideband sensors, don't you need more kit than just the sensor check this out

john banks

The Bosch LSM11 is not a true wideband, but can be used with the standard ECU and is a bit more reliable away from stoich.

nom

A good compromise, then? Especially with a system that doesn't actually use the Lambda sensor for anything unless it's being mapped (or values are having an eye kept on them)?

beryllium

wide band is a very acurate sensor
see to racetech web site and you will know all on the wide band sensors

beryllium

wide band is a very acurate sensor
see to racetech web site and you will know all on the wide band sensors