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i didnt miss anything.H/c levels dont have a dang thing to do with spark plug brands.The engine is running rich at idle,plain and simple.If an injector seal was bad you would more than likely have a constant lean miss that wouldnt go away at 2500 rpm.The fuel pressure regulator diaphragm failure seems most probabable.Fuel pressure would be high at idle causing increased h/c,but when engine rpms increased the engine would be using the increased fuel pressure.Just my .02.P/s,splitfire sf6d is the money plug for my 22re.

If the plug doesn't fire right, it won't burn the idle mix... Thus higher HC.

"A young man who does not have what it takes to perform military service is not likely to have what it takes to make a living." - John F. Kennedy

Proud owner of an 88 Montero (with a blown engine).