Hello Scotty,
Love your YouTube channel.
I’ve got a 2013 Subaru Forester x with a manual transmission, 123,000 miles. I have a clatter/ ping on startup for 3 seconds then it goes quiet. You’ll hear it again if I lightly hold my foot on the gas and also between 2000 to 3000 rpm’s. Also have a check engine P0420 cat code. I’ve tried lacquer thinner in a half tank of gas. Also tried Cataclean but to no avail. I have a Innova 5210 that gives a fair amount of info. Anything I can look at more in-depth with that.
thanks,
Josh Brittin
The noise could be your timing chain, either due to a worn tensioner or the chain itself. Typically if the timing chain is loose you'll see ignition timing jumping around in your live data.
The P0420 code could be caused by a bad O2 sensor, wiring, or exhaust leak rather than the converter itself.
https://www.obd-codes.com/p0420
One question per post please.
Please check the FAQ for your catalyst problem and see if your question is answered there.
