rdieseldawg
New Member
here you go.
Thanks!
So do you think the pics I posted look normal?
Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
here you go.
Here is a idea for you, switch the o2s around so bank1 o2 will go to bank2 and bank2 o2 goes to bank1 and see if the code comes up bank 2 now, if so thats your problem. Only swap the pre cats around.
This is the only way it can be done if you dont have specialty tools.
This may be a dumb question, but why only change the previous cat ones? ?
Hey gang...
So here's the update. Swapped o2's over from left to right. Car still ran bad, light came back on.
Scanner this time said that the system was running lean again, but didn't specify a bank. It did however show that both pre cat o2's were playing up. So I have now fitted two new Bosch ones.
Car still runs bad, and light is back on again.
So, what's next? Replace post cat regardless?
Did you put the o2 on a scope? Thats the only way to find out if they are faulty or not.
People always forget that o2 sensor is just that a "sensor" that is sensing o2 and its doing its job
Since the codes did not follow to a different bank the o2 was not your problem.
Fuel trims are your friend get this readings of a scan tool and you will see exactly whats going on.
Have now replaced all o2 and no joy.
Had lube mobile over and he did the fuel trim thing.
Engine light had come back on and no better.
I'm thinking something more mechanical like a leak??