Mechanics

LEXUS SC 400 ENGINE PROBLEM

1992 Lexus SC 400 • 241,855 miles

1992 lexus sc400 problem no power going uphill transmission changed on 2011 changed spark plugs lwiring gas filter cleaned trottle and today replaced catalytic converter and it glow red. And had no power going uphill. Reason why the cat glow red was too much fuel in exhaust from engine missfiring. How do we fix this problem do we have to adjust or need to tune up. The engine is not missfiring but have smoke smell gas.
Avatar
Guest
January 17, 2013.



Could be a leaky injector or the fuel pressure regulator-check the fuel pressure to rule it out and also the oxygen sensors

Rasmataz
Jan 17, 2013.