Ok, my 92 LS 400 (85000 miles) let me down this morning, and I am trying to figure out the problem. Any help would be greatly appreciated. The LS400 has been a great car in the 5 months I have owned it, but not this morning! When I accelerated onto the main road from my neighborhood, the car would not accelerate past 15/20 mph. It felt like the car died, as the engine was lugging badly. The rpm level wouldn't go over 2000 either, which makes me think this is not a transmission issue. In drive, the car just won't surpass 2000 rpm or 15/20 mph. Strange, I think? Nothing is leaking, but there was a smell coming from the car once I pulled back into the driveway.
Does anyone have any ideas of what this may be? I heard that these cars may have a built in Engine defense where if the Engine has issues, the car won't let you accelerate past a certain speed, to protect the engine of sorts? Any help would be greatly appreciated. Thanks!
I had a similiar problem, it was the fuel pump resister relay. it is located under the rear of the air filter housing. It is about 3" x 1.5" silver with cooling ribs and a 2 wire plug going to it. You can find them reasonable on EBAY, do not buy a used one. You can also bypass it to make sure this is the problem. Just remove it and connect the wires on the plug together.
This ad is not displayed to registered members. Register your free account today and become a member on Club Lexus!