Temp test done on cat-

Sensible. It could just still be a faulty probe, or even the cabling to the probe. Worst case wait until it comes on permanently and you get a certain fix. I had to do that with the space star we're selling. It now has a shiny new probe and no EMU light
 
Stuart Truman said:
Sensible. It could just still be a faulty probe, or even the cabling to the probe. Worst case wait until it comes on permanently and you get a certain fix. I had to do that with the space star we're selling. It now has a shiny new probe and no EMU light
Click to expand...
Cheers mate,when you say probe do you mean one of the 02 sensors?
 
Mine has come on again after having 3 new O2 sensors,i'm just gonna reset the thing from now on.If it passes the mot it will do for me.
 
andysat said:
Stuart Truman said:
Sensible. It could just still be a faulty probe, or even the cabling to the probe. Worst case wait until it comes on permanently and you get a certain fix. I had to do that with the space star we're selling. It now has a shiny new probe and no EMU light
Click to expand...
Cheers mate,when you say probe do you mean one of the 02 sensors?
Click to expand...

Yep. Although they're changing probes, you have wiring inbetween the probe and the computer and all manner of connectors. If the emissions are A-OK and you've had new probes already, I'd look at wiring. The only issue with that is that if you have a dealer do it, it will take a few hours and no guarantee they'll find anything. You'd want to be pretty familiar with the cars wiring diagram before you hooked up a meter and started testing resistances etc. And you'd want to know what's the "norm".

I feel for you and the workshops you're using. An intermittent fault is the devil to find and fix, especially if the fault monitoring system isn't showing a consistent code in its memory. Essentially, as a tech, you have nothing to go on so you start swapping parts.
 
Stuart Truman said:
andysat said:
Stuart Truman said:
Sensible. It could just still be a faulty probe, or even the cabling to the probe. Worst case wait until it comes on permanently and you get a certain fix. I had to do that with the space star we're selling. It now has a shiny new probe and no EMU light
Click to expand...
Cheers mate,when you say probe do you mean one of the 02 sensors?
Click to expand...

Yep. Although they're changing probes, you have wiring inbetween the probe and the computer and all manner of connectors. If the emissions are A-OK and you've had new probes already, I'd look at wiring. The only issue with that is that if you have a dealer do it, it will take a few hours and no guarantee they'll find anything. You'd want to be pretty familiar with the cars wiring diagram before you hooked up a meter and started testing resistances etc. And you'd want to know what's the "norm".

I feel for you and the workshops you're using. An intermittent fault is the devil to find and fix, especially if the fault monitoring system isn't showing a consistent code in its memory. Essentially, as a tech, you have nothing to go on so you start swapping parts.
Click to expand...
Yeah you are right mate
 
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