Hola friends!
I bought my cruiser about 2 months ago and consistently after shutting off the engine, there is a ticking sound from underneath the vehicle which I assume is the catalytic converters. I have also been gifted in those 2 months (3) separate P0420 and P0430 codes for either one or both sides. I have replaced both upstream O2 sensors as I got a code for one of them shortly after I bought the truck. The down stream have not been replaced. For some reason my Torque app does not show the A/F ratio so I don't see if I am running rich.
I guess what I am wondering is if the ticking noise after the engine shut off is common? I searched and didn't see anything. Do I need techstream to check the A/F? If I am running rich causing the cats to get hot and tick, any suggestions on what could be causing that? MAF has been cleaned and plugs have been changed.
I bought my cruiser about 2 months ago and consistently after shutting off the engine, there is a ticking sound from underneath the vehicle which I assume is the catalytic converters. I have also been gifted in those 2 months (3) separate P0420 and P0430 codes for either one or both sides. I have replaced both upstream O2 sensors as I got a code for one of them shortly after I bought the truck. The down stream have not been replaced. For some reason my Torque app does not show the A/F ratio so I don't see if I am running rich.
I guess what I am wondering is if the ticking noise after the engine shut off is common? I searched and didn't see anything. Do I need techstream to check the A/F? If I am running rich causing the cats to get hot and tick, any suggestions on what could be causing that? MAF has been cleaned and plugs have been changed.