If I start my engine and let it get up to normal temp. hold 2000rpm, the o2 sensors on datascan sit at 32.

If I rev to 3-4k a few times then sit it at 2000rpm they work fine, sweeping left to right.

 

Is this normal or are they lazy. I got a new one and a nearly new one im going to fit sometime.

 

Just wondered if the ones in there now are fine?

B ump

Change them both mate. Then you'll know they're ok.

 

Ivan

Erm????? Is there anything actually wrong with the running of the car???

Have a few Beers Mark!! It will seem fine after that :D

It works for me!

Replace both like The Dark Warrior said and get a wideband along with them.

Erm????? Is there anything actually wrong with the running of the car???

 

Nope, I just want it running spot on before she goes on the rollers for tuning

Always check the connecors too - Mine showed a dead one when it was just green oxide in the connector - easier and cheaper to clean the connector than replace a sensor!

Always check the connecors too - Mine showed a dead one when it was just green oxide in the connector - easier and cheaper to clean the connector than replace a sensor!

 

Done that :D

 

I just wondered why they didnt work till I gave the engine a good rev.

Mine havn,t been connected for two years and runs perfect :tongue: :rofl:

sounds normal, the ecu doesnt care what the 02s are reading until 2kRPM +

Mine havn,t been connected for two years and runs perfect :tongue: :rofl:

 

Really, I'm kinda surprised that that - you sure you mean the O2 sensors and not the cat temp sensors ?

sounds normal, the ecu doesnt care what the 02s are reading until 2kRPM +

 

so what should they be doing under 2k rpm?

so what should they be doing under 2k rpm?

 

Nothing I dont think. From start up mine wont register at 2k untill I give it a good rev up to 3-4k.Then mine read at 2k

Really, I'm kinda surprised that that - you sure you mean the O2 sensors and not the cat temp sensors ?

When i bought the car i found after a few months that they weren,t connected ( spotted the plugs not connected ) asked a few times on here if it will cause problems , most people said ...ooh it shouldn,t even run ..but it does and very well too .

Spoke to Jeff from Z WORLD at JAE , he said they only affect the running upto a certain rev range anyway, after that they don,t really do owt .

For peace of mind i bought a pair , fitted them and the car wouldn,t tickover correctly , kept hunting up and down and nearly stalling , unplugged them and hey presto runs perfect :nana2:

It,s strange but very true :hyper: :hyper: