Can Anyone Help With This Error Code?
#1
Can Anyone Help With This Error Code?
Hi all. I have a 2005 G35x with about 128k on it. Yesterday I was changing my spark plugs (Mind you I have never changed plugs before but seems simple enough right?) and I guess they weren't correctly gapped so my car was misfiring and I was getting code P0300, which is random/multiple misfire. So I put the old plugs back in and they were still misfiring. I could not figure out why. Unfortunately I had to drive the car about 2 miles like that back to my house until I stumbled upon a post on here which made me realize that my coil wires may have been mixed up (Which they were, back and middle plugs on the driver side). So I fixed that problem, and my car was running good again. Today, I turned my car on and the engine light came on with a P0430 code "Catalyst system below threshold". I cannot figure out what is the exact cause. I dropped it off at a local mechanic today, but I won't know until tomorrow what is wrong with it. Anyone have any ideas? I was running white smoke thru my exhaust while I ran the car with the misfire, so I was thinking that maybe my o2 sensor on the driver side were dirty or damaged from the smoke passing thru it.
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