gearhead141

Just had my car inspected and passed the enhanced smog test with flying colors. Nox readings at 15 and 25mph were 10ppm. That's correct; only 10ppm! Let me be clear that my car is completely stock right down to the EFE valve. I had a new catalytic converter installed two years ago when I failed for high Nox. The only niggling little problem I had was the gas cap. It failed to hold pressure and the tech replaced it. I'm not certain that it is the fuel here in SoCal, but the O-ring seal does not last long. I could see that there were cracks all around the seal. When I got back home, I removed the seal, flipped it over, and re-installed it. I also smeared a little petroleum jelly on it to keep it lubricated. Just wanted to share and let folks in California know that it is possible to pass the emissions test with a 30 year old car.

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iTrader: (1)

Awesome to hear. Mine is bone stock 89 350 TPI and I passed smog after the basic tune-up stuff and new cats. Flying colors, too.