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I have black residue on my bumper from the exhaust on my clio 172 ph1, and the exhaust gases smell like unburnt fuel. Probably the mixture is rich for some reason. I have a decat exhaust, with a central silencer between the 2 lambda probes and a rear silencer. Are the lambas dead ...
Hi Folks, newbie here.
Somebody out there must be able to answer this question.
I have a very rich - poor idling Renault Clio 182.
Everything else apart form this, is absolutely spot on. well - from what i can tell anyway.
I am wondering if anybody out there can answer some live data...