Have you checked your battery cables? I had a similar problem when driving on the highway. It would be running fine and then start bogging down rpms would drop. The positive battery cable terminal was vibrating loose because it was broken. Might not be your problem but worth checking.
Hard to tell from the pic but some of those scratches will probably buff out. If you’re set on painting the hood you’ll need to get the clear coat off. When I did mine I used 800-1000 grit and wet sanded it by hand but my clear coat was peeling off. For the paint I used John Deere blitz black...
When I replaced all of my ac components I got the four seasons compressor kit, Nissens condenser and Denso evaporator and expansion valve all from Rock Auto 1997 TOYOTA LAND CRUISER 4.5L L6 A/C Expansion Valve | RockAuto -...
I would guess you have a loose or corroded connection or a failing ignition switch. I’d start with the ignition wiring diagram and check the condition of the wires. Also check your grounds.
I think Land Cruiser Heaven has a shop in Miami. Expert Land Cruiser Restoration & Repair Services - Land Cruise Heaven - https://landcruiserheaven.com/
I’ve never used them but they do a lot conversions and swaps. Sweet looking rig btw.
No light means the ecu isn’t getting the correct signal from the EFI relay. I’d unplug the relay clean the contacts and put it back in after 10 minutes or so and see if you get cel. Attached is the ECU pages from the FSM. Follow the service hints for troubleshooting.
Does the light come on at all? If you don’t have CEL when you turn the key to on before you start the truck it’s most likely a bad ecu. Look at the ecu trouble shooting in the FSM it will help.
How are the lights on the arb bumper wired up and are they led? Do you know what relay you got from the parts store? They may have sold you the wrong one. This stuff can be frustrating.