34 replies to this topic

[skogshuggarn]

I have now conected black o2sim groud to engine ground and led is blinking What fuse is it reset the ecu???

[cicastol]

I have now conected black o2sim groud to engine ground and led is blinking

What fuse is it reset the ecu???

disconnect the battery for at least 1\2 hour or more

[skogshuggarn]

disconnect the battery for at least 1\2 hour or more

will that just put out the light or will it get rid if the error code as well?
My opel dealer told me that it wasn´t possible to erase a error code by disconecting the battery

I will try disconecting battery tomorow and see if it all works

[vocky]

Disconnecting the battery does wipe the error codes.

[skogshuggarn]

The CEL is out for now wonder for how long it will stay like that When starting the car and driving away it felt diffrent than before there was a big powerdip i didn´t have before I hope my ECU will learn again, so that powerdip goes away, not fun at all driving it now.

[vocky]

You need to drive quite sedately for a few miles, then the ecu resets smoother. I had the same problem after one reset because I gave it to much throttle straight away.

[Ricky2772]

also removing fuse nr.8 for few mins will reset the ecu...

[skogshuggarn]

I got the CEL back now I managed to drive about 170km since resetting ECU before CEL came on again

[paulf-cam]

I got the CEL back now     

I managed to drive about 170km since resetting ECU before CEL came on again

You have the full milltek system? You shouldn't need to fake the o2 signal, milltek exhausts work ok with the standard o2 sensors. Its very easy to break them though, or even plug them the wrong way around leaveing an open circuit.

Just sounds to me like it needs sorting at the dealers?

Cheers, Paul.

[skogshuggarn]

I have a full Courtenay exhaust Sounds good, but CEL is a problem

[clipping_point]

Strange there is no such problem with the Milltek. Maybe u could weld in a Milltek cat in your Courtenay pipe...or Courtenay should GIVE you a Milltek middle section

Edited by clipping_point, 22 May 2005 - 12:46 PM.

[paulf-cam]

I have a full Courtenay exhaust

I thought that was the milltek - but i guess not!

[Saabster]

Went to Opel today and got a Tech2 reading of my error code.
The lamda before cat is working. O2 sensor after cat should send a steady liner signal if cat is working properly, my signal is not steady. So the 200 cel racecat is not working as it should be...  OR....

What fault code was it? was it After Cat Lambda sensor or was it catalytic fault?

That tells if it is the sensor that is broken or it it is the cat that doesnt work... I guess it was the sensor, because you wrote that the fault came back again after a few km.

The sensor doesnt need to be completley broken, it can be "slow" and you will set a faultcode for that.

You can brake the sensor if you have it mounted "downwards" (neråt alltså) and then you will get water in the sensor and when the heter in the sensor starts to heat it up, it can brake down, the china in the sensor will crack.

I think that you shall change sensor, or test a sensor from someone elses car. We might have some extra up here in Trollhättan, I will check that with my speedster frends

[Saabster]

We might have some extra up here in Trollhättan, I will check that with my speedster frends

We have an extra sensor that is working up here, you are welcome to wisit us!

[skogshuggarn]

I have a new sensor here, bought it last year. Errorcode says cat isn´t working as it should, but it is "besiktigad" with it and showed good numbers I have a o2sim and problem now is that i can´t get it to work as it should