Does anyone know what an acceptable range is on an 85 380se. I've searched but can't find any hard numbers. I'm trying to find why It's fouling plug #2. That cylinder shows 145 psi cold. The others are above 150. The car has 205k miles. Acceptable?? Car starts easily hot or cold and runs good anywhere above idle. It has new plugs, wires, cap, rotor, injector seals and fuel filter. But still has rough idle. I've tried swapping an injector from another cylinder but the problem remains. Any ideas appreciated.

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