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1996 Lexus LS 400 - Page 2 Questions & Answers
1996 Lexus 400 where fuel reset
To answer your question specifically it would be no. There
is no inertia switch that feeds the fuel pump that can be turned off or reset . The engine control computer turns on a series of two different relays to control power to the fuel pump. When in the start position the circuit opening relay and the fuel pump relay or both energize causing the fuel pump to run at full pressure or fast speed. From there the engine control computer determines which demand is on the fuel pump and either turns off the fuel pump relay and leaves
the circuit opening relay on to supply power through a resistor to slow the pump down for less demand. The EFI main relay is the main supply relay to both of these sub relays. The fuel pump is powered up ultimately by the 20 amp EFI number one fuse. All of these components are located in the fuse box under the hood. If the circuit opening relay is not working it's powered up by the 10 amp
ignition fuse inside the vehicle. It's unlikely it is the 10 amp ignition fuse because that powers up a lot of other things also.
1996 Lexus 400 died wont restart
First, please post your question only once.
There is NO INERTIA SWITCH on your vehicle.
The only thing to check is FUSE #1, which is a 20A fuse that provides power to your EFI control. If that is good, check for voltage at the fuel pump when the vehicle is turned on. If it has power to the fuel pump but the fuel pump is not running, replace the fuel pump.
What if it is the piston pins?
Hard to say but very bad either way.
It is going to take some serious investigation and corrective action either way. Biggest issue will likely be where to stop - If you dig in and find a bad wrist pin, do you replace that and button it all up and hope for the best or keep looking and replacing stuff?
Good luck and if you have time, add in developments via comment to the original question.
Salvage yard prices
Depends on availability for your model tranny and area you live in. Average is around $300 for a decent used one up to around $700 for one with low miles. Best to just call around and compare.
Remove ecm 1996 lexus ls 400
run fault codes and replace faulty sensors. have a fuel pressure . Check injectors for correct operationtest done on the fuel manifold to test fuel pressure regulator. pump and filters/
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