It's been quite a long time since my last post. My '04 NSX has been in garage for past 2 months, decided to drive it into work this morning. I've had it on a battery tender - no problems with starting and charging system was fine according to gauges during the trip this morning. My trip to work is about 25 miles - mostly highway/freeway. At about mile 20, while on freeway doing 75 mph (speed limit 70 folks!), dash lit up with CEL, red battery indicator, and one other red light that I didn't catch. The engine did NOT shutoff, but I also did not have power (thrust) when hitting the gas pedal. I coasted over to the right breakdown lane and came to a stop. This whole time, the engine is running. I tried to get the car to move forward, but no luck. I shut the engine off. I moved the passenger seat full forward, slapped the panel behind that seat where the main relay is located, waited a few seconds, tried to star the car again. Success. Put her in first gear, let out on the clutch and away I went, producing good power like nothing had happened. It's parked now at work.
I've looked through the forums and it seems as though this is a classic case of main relay failure (partial). I'm going to pick one up, but I'm perplexed with the symptom of the engine still running, but not producing power to the wheels. I'll pull the CEL code when I get home, but does this sound like the main relay? No guages on the dash appeared as though there was a problem before/during/after this problem and it certainly did not look like a battery/charging problem. Thoughts?
I've looked through the forums and it seems as though this is a classic case of main relay failure (partial). I'm going to pick one up, but I'm perplexed with the symptom of the engine still running, but not producing power to the wheels. I'll pull the CEL code when I get home, but does this sound like the main relay? No guages on the dash appeared as though there was a problem before/during/after this problem and it certainly did not look like a battery/charging problem. Thoughts?