Hello all,
Just join the forum. I have a 92 Lexus SC400 and have smog issue. Any help would be greatly appreciated.
This is what I have done to try resolved the smog issue:
Install all the spark plugs NGK - Spark Plug Part Number: 3764Iridium IXDOHC Per Car Quantity: 8Gap @ .0441.
Install New PCV Valve
Cleaned air idle control
Cleaned throttle body
Did an oil & air filter changed
New Cat
2 New Oxygen Sensor (upstream)
Other minor issue.
No illumination on the idle needles
Heater turn on, it blows but no heat
TRAC Control light is constant on.
Aside from the issues, the car ran awesome.