Not sure but a 1991 model does, so it stands to reason that a 1990 would.
I am assuming that you want to know where the Catalytic converter is in your 1990 Cadillac. it is underneath the car, silver color (or rust) welded to the exhaust pipe about the center of the front seat floor.
by wackin it ;)
there isn't one
YesYes
loss of power.noise rattling from exhaust
Partially clogged or engine misfire.
This light is indicating a emissions problem or failure. The catalytic converter may be operating at low efficiency which is a sign of failure.
AnswerCrawl under the car. You will see a muffler, and a catalytic converter which look similar. The converter is the one closest to the engine.If it's a 4 cyl. It should be between the exhaust manifold and engine pipe.
Because it liked screaming at your mice while it was shirtless.........
You can tell if the catalytic converter on your 1990 Lexus LS 400 is bad by noticing a few signs. Common symptoms include a significant drop in engine performance, a strong sulfur smell, or a decrease in fuel efficiency. Additionally, if the check engine light comes on, it may indicate issues with the catalytic converter. You can also perform a heat test, checking if the converter is excessively hot on the inlet side compared to the outlet side, which can indicate a blockage.
It sure did, That is the law on all makes and models.
1990 was the last year Chevrolet made Celebrities. If you mean catalytic converter they look like a muffler, some have bolt on flanges.