is this a MK3 supra? if so..It is a pain it is behind the gas tank and pretty much on top of the rear diff.
Check/ replace: fuel filter, fuel pump pressure, timing belt timing.
The fuel filter is located along the fuel line just prior to the fuel line entering the carburetor. This filter is a metal canister with 3 line fittings.
It's next to the fuel pump, behind the rear right tire.
its too cold
inside the frame rail on the drivers side
the in-line filter is right below the driver seat's under carriage trace the fuel line from the fuel tank towards the front and you will come to it about 2" diam. & 5" long.
Is there more then one fuel filter on a 86 190 D ?
Right behind the front tire on the drivers side on the inside of the frame
on my 86 454 ltd it's in the tank, connected to the petcock
On my 86 Audi 5000 the fuel filter is located under the hood on the passenger side, up top and close to the inner fender. Yours may be the same.
start simple check your fuel filter it might be clogged. if its not the fuel filter it could be your ignition control module
for a 86-1/2 to 92 supra, the expansion valve is located in the evaporator case. mike b.