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Originally Posted by bpolitzer
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Oddly enough, this was a CARB car. It was originally a California Emissions model from 1972, complete with EVAP. It can never pass a visual inspection in those states anal retentive/stupid enough (of which, there are many) requiring a visual inspection based upon the original configuration. However, it passes ANY state's emissions requirement on a treadmill, so in effect, it is way too clean to be a 1972 vehicle. It still has the EVAP (which is actually managed BETTER by the ECM than by the original vacuum / TVS configuration), and it runs on an active O², just like it should. For a 1979 model year vehicle, if you simply connect a pair of high flow 3-way catalytic converters and no respirator tube (or a single cat for single exhaust), and if you have any clue about programming, it will pass any 1979 model tailpipe emission standard in any state.
Mr. Fiero is absolutely correct. If Californica chooses to be arrogant/ignorant enough to require vehicles to emit MORE pollution because they are older, that explains a lot about what is happening in Sacramento (yeah, I've been there twice, and see what goes on).
On that topic, I seem to recall a recent federal court ruling (just this past week) regarding that, effectively whacking CARB and the rogue environmental rules of the Peoples' Republik of Kalifornica off at the knees, just as it should be.
Check with your state and local regulations first. Where I live, there is no emission check required. One county away, however, bi-annual tests are required to allow issuance of license plates. It's not always a state-wide regulation. Since this vehicle has to be tested, it had to pass. I can probably get a CO, N²O, HC printout from the owner, but I recall him saying the numbers were very low, and actually impressed the tester. I tuned it by lambda, so I knew it was going to be good, despite what the instruments at the state test lanes might say. Evidently, their's were calibrated properly.