SOURCE: problems with 4 wheel drive on 04 Nissan Titan
2004 Nissan Titan when using the kick down and the accelerator pedal is about 75% depressed the RMP go into the red zone then drop to about 25K and comes close to stalling. Why?
SOURCE: 1985 Nissan 300zx power steering hard
I'd love to help, but none of my service manuals show your car having variable assist power steering. Even '86 and '87 don't have it. The electrical connection you see at the pump, is a power steering pressure switch. All it does is tell the ecm that the engine is under load at idle when you crank the wheel hard and it bumps the idle up a bit so you don't stall the engine, but that's all it does. If you like, I can send you two wiring diagrams depicting the all underhood electronics, but I think you probably have a bad rack and pinion. Seems like a common problem from the small amount of checking I did.
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