bob02Z06
Active member
Hey everyone,
I have a 2002 C5 Z06. In January I blew a valve spring. I had a severe engine misfire, I did not drop a valve. I replaced all the o2 sensors, valve springs, spark plugs and wires, and mass air flow sensor in February. Car ran alright afterwards.
Late February/ early March I threw a P0420 code for catalyst inefficiency. So I bought a couple of direct fits before finally deciding to take the car to a shop to have both of my catalytic converters replaced. They are non-California compliant, I live in Washington. Car now runs very well, however something does not seem right.
Everytime I drove it, which has not been very much it starts to smoke or steam out the dipstick tube and a very small amount out the oil filler when the car is warm. I replaced the oil too see if this would correct it, however it still smokes/steams. Also the car seems to be running very rich. I replaced the PCV valve today, however the old PCV was in excellent condition, so this has me concerned if this is being caused by something else. I did not have this issue until after the new catalytic converters were installed.
Any thoughts, ideas, or recommendations? Any input is welcomed!
Thank-you so much!
-Robert
I have a 2002 C5 Z06. In January I blew a valve spring. I had a severe engine misfire, I did not drop a valve. I replaced all the o2 sensors, valve springs, spark plugs and wires, and mass air flow sensor in February. Car ran alright afterwards.
Late February/ early March I threw a P0420 code for catalyst inefficiency. So I bought a couple of direct fits before finally deciding to take the car to a shop to have both of my catalytic converters replaced. They are non-California compliant, I live in Washington. Car now runs very well, however something does not seem right.
Everytime I drove it, which has not been very much it starts to smoke or steam out the dipstick tube and a very small amount out the oil filler when the car is warm. I replaced the oil too see if this would correct it, however it still smokes/steams. Also the car seems to be running very rich. I replaced the PCV valve today, however the old PCV was in excellent condition, so this has me concerned if this is being caused by something else. I did not have this issue until after the new catalytic converters were installed.
Any thoughts, ideas, or recommendations? Any input is welcomed!
Thank-you so much!
-Robert
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