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Both the black plug (red/white/black wires) and the grey plug (yellow/green/brown wires) go to the location at the front of the plenum. I didn't recognise the wire colours in your first photo of the grey plug because they are so dirty. -
What Josh was saying is that the stock gauge reads dead on centre across a really wide range of temperatures, from "not quite up to operating temperature" all the way to "you're just about to cook it". That means that if you ever see the gauge over the 50% mark it is actually very bloody hot, and yes, you might have done the gasket at that time. Or, you might not. Head gaskets can fail so that coolant enters the cylinder, exhaust gases enter the coolant, oil enters the coolant or water enters the coolant, or any of the possible combinations. Just not seeing emulsified oil in the radiator is not sufficient to rule out gasket failure. You also need to test the coolant pH, to look for dissolved combustion gases (CO2 -> carbonic acid when dissolved in water). A fluffy idle could be from a dying/dirty injector, dying coilpack (or perhaps damaged sparkplug), a vacuum leak on the inlet manifold gasket, broken piston/ringlands or burnt exhaust valve, and any of a number other things. You need to start working through the list.
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Really? i mean im bot from Australia so its summer here rn. We had 35°C and I was beating on it quite a bit. When i did a chill cool down lap with normal driving it very quickly dropped down to normal -
By joshuaho96 · Posted
That is pretty much overheating on an RB. Should never exceed middle of the temp gauge. In my experience normal temp it never even gets to the middle reading 80C. -
I checked the usual things for headgasket like color of coolant/oil and if the oil filler cap has that milkshake stuff but everything looks good
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