pluged up cat convertor?
so if i remove both oxgen sensor on same side and car idles now does that mean that catalac convertor is plugged up? im giving no check enging light
- Anonymous5 months ago
Put a pressure gauge on the front O2 sensor fitting. If pressure is over 3 psi with engine idling, the cat converter is clogged.
You can also check cat converter using a vacuum gauge installed in a vacuum line. Rev engine to 3000 rpm. Vacuum should drop. Release gas pedal. Vacuum should immediately rise. If vacuum does not increase immediately, cat converter is clogged.