Volvo V70 O2 sensor REVISITED !!!

"Staffbull" wrote in news:1140469841.188080.21640 @g44g2000cwa.googlegroups.com:

See my reply from when you posted before. I gave you all the wire colours and what they are for. That should enable you to use a universal sensor.

Hi M8, the colours dont correspond :-(

According to

"Staffbull" wrote in news:1140470947.398546.295830 @g47g2000cwa.googlegroups.com:

The sensor itself will not have those colours, but the plug that it connects to should. Have you found the plug for the sensor, at the back of the engine compartment? What colours have you got there?

Si

Thanks for the replies, I will check the colours of the wires from the other side of the connector when I get home tonight. Can I just say that I really do apreciate you guys getting back to me and what an exellent group this is :-)

Cheers for now,

Steve

I could do with a universal type but dont know which one to get and which wires to splice to (four wire) any ideas greatly apreciated as the Volvo one is £179 plut VAT !! :-(

If you dont want the jumped up Volvo Bosch part, Some Saab 9000's use the same sensor and THE SAME plug which makes life alot easier.

give

Note that the signal wire *must* be soldered and heatshrinked- a crimp can pose too high a resistance- these only give 1.0v at the best of times.

Tim..

Given they're hardly high current that's a bit of a red herring.

Even more so then!!

Tim..

OHms law?

V=IR. Yes if V is low and R high, you wont pass any current (i.e. anything for the ECU to measure)

Tim..

However if I is low , which on an ECU input it is)then a highr R will have little effect on V. Given that the only reason you'll have a high R on a crimped joint is because you've used too big a crimp or the wrong crimp tool it's not really an issue either way.

Fuelparts.co.uk said Volvo only as well !!!! am I scuppered ?

Fuelparts.co.uk said Volvo only as well !!!! am I scuppered ?

Hmmm

Have you tried ECP?

Tim..

"Staffbull" wrote in news:1140605386.799496.244680 @o13g2000cwo.googlegroups.com:

According to their catalogue, they do a direct replacement sensor for the V70.It may be a good deal cheaper than the Volvo stealer. Alternatively, GSF do one for £52.00 (+ VAT, I think?), but it does not say whether it is a universal type or not. In any case, it's quite possible to find out what the function of each wire is using a basic electrical multimeter (£4.95 from your local Maplin). Have you looked at the wire colours yet?

The problem isnt high R initially- its the corrosion that occurs in the crimp as time goes by.

Tim..

got one from eurocats plus for =A376 - big saving on the Volvo =A3179 & vat !!!

cheers all :-)