Oy.
280z still didn’t pass. But got some useful data.
From the previous post, I installed a new catalytic converter, popped in new spark plugs, and re-filled an empty tank with 87 octane. Here are the old / new numbers:
| CO% Levels | 1st Try | 2nd Try | ||||
| Speed | MAX | AVE | MEAS | MEAS | ||
| 15 MPH | 1.36 | 0.17 | 2.03 | 1.73 | ||
| 25 MPH | 1.16 | 0.15 | 2.66 | n/a |
1st Try: Catalytic converter was supposedly original, but no numbers when inspected. Bosch Platinum Plus spark plugs had heavy carbon buildup. Ran 91 octane gas.
2nd Try: New Magnaflow catalytic converter, NGK spark plugs and 87 octane gas.
Thankfully Nguyen from Smog Tech did a quick CO% test just to see where we’re at. It ran steadily at 1.73% CO, just 0.37% more than MAX. Okay, time to adjust the 280z’s AFM (Air Flow Meter) to run a bit more lean air/fuel mixture.
3rd times a charm, right?… right?
the DAILY DATSUN 
Ever get it resmogged? Btw, I really enjoy watching you progress from the beginning till now.
Thanks Kiet – yeeaaahh not yet. That’s the first on my list when I get back in town, and hopefully it’ll pass on the next adjustment.
Hi Justin,
I was wondering if you could give me any information on what your body kit is called and where you got it. I’m really interested in making my datsun look like yours!
Thanks,
Leanna
Hi Justin,
I was wondering if you could give me any information on what your body kit is called and where you got it. I’m really interested in making my datsun look like yours! It’s awesome!
Thanks,
Leanna
Thanks Leanna – i just replied to your other comment! It’s a MSA Type 1 for the 240z (i like the 240z directionals).
Hi Justin
I took my 76 Z in today for its smog test. I really thought it was going to fail but it passed with flying colors.
wow! awesome to hear it’s on the road, where it should be! :]