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What triggers C.E.L light??

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Old 26 July 2003, 01:15 PM
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Mat Mc
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Full Scoobysport system waiting to go on '02 WRX.

Upipe/downpipe/centre sections/backbox.

What part(s) will trip the C.E.L light. I have been told the only part that will need a fix for the C.E.L is the upipe sensor.

I have also been told it will pass MOT's only with the upipe CAT installed, if so this is great!

Can anyone confirm this??

Cheers!
Old 26 July 2003, 02:02 PM
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Gidney&Knowlesy
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The upipe is the EGT (exhaust gas temperature sensor) this can fail though the cel fix does not fix this....

The downpipe is usually responsible for throwing a P0420 (cat eff. below threshold) this is what the cel fix - fixes

You will pass an mot with 1 cat in; though you need to make it hot and make sure the car goes in straight away for a test. if its left to cool then a fail is inevitable...


[Edited by XtremeScoobies - 7/26/2003 2:03:58 PM]
Old 26 July 2003, 05:30 PM
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Mat Mc
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Thanks for the info....

The thing I am contimplating is fitting the exhaust from the turbo back loosing the second and third CAT's. I was led to believe that this would not put the C.E.L on as the first CAT would remain in the upipe. Also from a legal point of view it still technically has a CAT, I don't think there is anything saying a car should have three CAT's (I will probably be corrected on that one!)

I was told I would only need the C.E.L fix if changing the upipe which, as you mentined is the CAT efficiency error code.

I would love to do the upipe as well but it looks like a pain in the backside to fit.

The question is if I just go from the turbo back will I need to modify anything else to stop the C.E.L comming on?

If so what's the best mod and where can I get it?

Old 26 July 2003, 08:49 PM
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FERRARINUTTER
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If you modify the downpipe back you will need a cel fix box to extinguish the check engine feature.....(that relates to the specific error code)

Many outlets now supply these costing roughly £50 & probably 15 minutes to install.

Haywards & Scott 01268 727256
ScoobySport 01268 590085
Xtreme Scoobies 01245 363623

There are more sources though I ca't remember the telephone numbers
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