v8hterz

Hey everyone my name is ethan i have a 92 lexus sc400 just bought and love the car but week later since i owned it randomly had a huge power loss and was running really rough i put a test to it said 5 piston missfireing so changed plugs wires solved that but still running same so one day smelt something and hurd from my exhaust something weird so looked under cats were Orange hot so i took them off they were shot and cloged up so i gutted them and threw a pipe in it welded it in and bolted it back up helped gave it most of the power bavk but still not all of it so idk what it is and dont want spend hundreds on it if its a simple problem maybe then cleaned the tb and sea fomed it clamped all vacuum lines still same but i have 3 codes ones 02 went on when i gutted the cats and iat. Sensor idk where that is idle air temp i think and the maf sensor because i unpluged it because was shot but getting new one on tuesday but idk if thats the problem the maf because never used to beout tell the other day

1JZPWRD

iTrader: (59)

Please use proper punctuation when writing. It makes the thread much better to read and understand.

I also moved this to the proper forum section.

SexCoupe

iTrader: (6)

sounds like coil packs... you have 2 one directly in front of the plenum the other is mounted sideways on the driverside about 12 inches away.

SC400slide

iTrader: (11)

While the car is running, unplug the coils, one at a time. Probably your issue. If not, your ECU took a dump.

Here is the helpful sticky to everything you need to know. https://www.clublexus.com/forums/sc-...tart-here.html