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How To Identify Euro 3 Type Euro 4 Type Below

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How to identify EURO 3 type EURO 4 type below


If the vacuum type valve has one electrical plug on it, then it should be treated as a Euro 4


Note the piggy back motor, and it should not be unplugged when the plate is fitted




When EGR valve sticks open air supplied to engine by turbo above 1800rpm is diverted into exhaust pipe by stuck open EGR valve, engine management system thinks all this air is going into engine (detected by MAF mass air flow sensor which is located near air filter outlet) so EMS injects fuel to match air it thinks is going into engine, this results in too little air and too much fuel which = Black Smoke.Fitting blanking plate blocks air going back to exhaust so all air boost from turbo goes to engine to burn with fuel. Also stops exhaust going into the engine, which also makes it smoke, and lowers fuel consumption.

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