Before you start telling me that there is no relation, let me give you some general background. My car is a 2001 LS1 camaro Z28 that I have owned it since new. Also, a connecting rod in factory the motor snapped at 80,000 miles and I had it replaced (thank *** for extended warrentey) with an LS1 from a 2002 Corvette (35,000 miles)a few months ago. Whe following has happened with BOTH motors, exactly the same way.
I did the first "clean" Auto Rx on the original motor at 50,000 miles and on the used motor, the Auto Rx was used in the first oil fill. During the rinse phase, I added a quart of Marvelous mystery oil to the 17 gallon fuel tank and filled up. This is about 4-8 times what the directions called for and was stupid to do so, I already know this. Within a tankfull, the check engine light came on and didin't go off. I went to auto zone to have the code read and both times, it was a catalytic converter failure. I just lived with it, as we don't do emissions here in Florida. Here is the freaky part....BOTH TIMES, the light WENT OFF within 25 miles of adding a 3-4 oz maintinance dose of auto Rx after the rinse cycle was complete. Anyone familiar with the LS1 that can shed some light on this for me, my curiousity is now peaked. The first time, I wrote it off as unrelated coincidance, but the second tome, to me indicates more of a cause and effect relationship. Thanks in advance for your thoughts and just to remind you again, I do know I added too much MMO to the gas tank.
[ November 20, 2005, 10:29 AM: Message edited by: LS1-CAMARO ]
I did the first "clean" Auto Rx on the original motor at 50,000 miles and on the used motor, the Auto Rx was used in the first oil fill. During the rinse phase, I added a quart of Marvelous mystery oil to the 17 gallon fuel tank and filled up. This is about 4-8 times what the directions called for and was stupid to do so, I already know this. Within a tankfull, the check engine light came on and didin't go off. I went to auto zone to have the code read and both times, it was a catalytic converter failure. I just lived with it, as we don't do emissions here in Florida. Here is the freaky part....BOTH TIMES, the light WENT OFF within 25 miles of adding a 3-4 oz maintinance dose of auto Rx after the rinse cycle was complete. Anyone familiar with the LS1 that can shed some light on this for me, my curiousity is now peaked. The first time, I wrote it off as unrelated coincidance, but the second tome, to me indicates more of a cause and effect relationship. Thanks in advance for your thoughts and just to remind you again, I do know I added too much MMO to the gas tank.
[ November 20, 2005, 10:29 AM: Message edited by: LS1-CAMARO ]
