I'm going to try my best to describe this very recent problem I am having with my 78 280z. When I get up to about 2400 rpms, the car suddenly starts losing power. The tach doesn't drop like when you puch in the clutch, more like no response from the accelerator. If I keep the accelerator down it the car still slows / powers down to the point where it wants to stall. The engine light will flash and the car will start to lurch forward a bit. If I downshift and then give it some - it responds fine, until 2400 again. I can ease through the problem by giving slight gas but then the problems happens again around 3400rpm. I know, not a great description of the problem. On a side note, the first time I had the problem was right after spraying degreaser on my engine bay and then hosing it off. I covered the fusible links and was careful with the hose. I have to wonder if I somehow caused this. Thanks - Robert