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Jun 10, 2017 | 09:20 AM

ameer90

Thread Starter

Driver

Joined: Oct 2016

Posts: 87

Likes: 8

From: Muscat

Need help please

Hello

I have Lexus es300 model 2000
The problem is that I feel my car very slow and its acceleration is very bad.

I replaced many things but I still have the problem

I removed catalytic converter
When I do computer check

I have p0420
I think I have oxygen sensor problem

But which sensor it is?
There are two

Please help me

Jun 11, 2017 | 01:41 PM

nsghtbrwry

Pole Position

Joined: Feb 2017

Posts: 368

Likes: 39

From: CA

With slow acceleration and a P0420, I'm willing to be you have a clogged catalytic converter. It will be loud, but you can test it by removing the upstream O2 sensor(s) and driving it. If it accelerates normally, you have a clogged cat.