1999 Jeep Grand Cherokee 4.0 six-cylinder
My check engine light just went on. I ordered a scan tool and should be able to retrieve the codes soon.
ProScan ISO OBD-II Scan Tool w/USB Interface
JeepForum.com - Registration
The car runs normally.
From time to time the "check engine light" will flash or blink.
I pulled out the owner's manual to read that this means there is a problem with the catalytic converter.
Does anyone have some experience with this?
I am in California and it seems like most aftermarket converters cannot be sold here. The jeep was not original for California.
Right out of the exhaust manifold, there are two exhaust pipes, each with a bulb. What are these? Pre-converters?
Then the two pipes Y into one and lead to what I know as the catalytic converter. Finally, this leads to the muffler.
Thank you in advance for the advice.