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#11
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Failed SMOG, now what???
skuba wrote:
> Hi, I am trying to sell my 1992 Toyota Tercel, it runs good but has > 200k miles on it. > > I failed the smog test and now I don't know what to do. You can start by reporting both your test numbers and the allowable limits in your state. Without these, you leave your readers completely in the dark, and yourself without any sort of intelligent aid. |
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#12
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Failed SMOG, now what???
"Shep" > wrote in message ... > Ted, true if it is fuel contaminated especially, in respect to hyrocarbons > only. Yep, I should of asked if it just barely failed or not, as there's tricks to getting it to pass. I myself has a '84 Celebrity and it just barely passes on HC's. Sometimes it fails. The engine is the 2.5 with the GM computer-controlled Varajet carb, the engine probably has about 260,000 miles on this carb (the engine has been rebuilt) The converter was replaced once by a former owner and is probably close to being shot again. I'm kind of cheap so what I do when it fails is just go to a differnet testing station. The last time I had to take it in, it failed HC, so that same day I drove to another test station, which was about 15 miles away, out in a rural area. I basically drove 70Mph on the highway to get there, then the test station is right off the freeway exit, and nobody was in front of me, so I got it tested within minutes of coming in off the highway and it passed. The test devices are supposed to be recalibrated periodically but I think there's enough variation that this trick works if it's a borderline fail. Also the testing stations I used were at different elevations. Aother thing you can do is just try testing it on a different day that has a different barometric pressure. Most people focus on fuel modifications to try to get borderline engines to pass, but air modifications are often more effective since a lot more air is going through the engine than fuel. The idea is that different densities of air may change the pollution the engine puts out. With computer controls of course the engine tries to compensate for this, but it's not perfect. And older cars without engine computers are particularly easy to trick. My father had a station wagon once that would pass if you simply removed the air filter before going in to have it tested. Ted |
#13
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Failed SMOG, now what???
skuba wrote: > Hi, I am trying to sell my 1992 Toyota Tercel, it runs good but has > 200k miles on it. > > I failed the smog test and now I don't know what to do. > > The emission problem could be o2 sensor, catalytic converter or EGR > valve. Or even more than 1 of the 3. So this could cost me a lot. > > I was asking $1400 for the car. Now, I don't know if I fix and try to > ask for more, if I should donate, etc... > > Do you think I could replace the 02 sensor or catalytic converter > myself? I amnot a mechanic. If the problem is in the 02 sensor or > converter it wn't cost so much, but I believe the EGR valve costs > around $200 > > > > > > Some people are calling me and saying they will buy the car as is. But > I am afraid of that, because without smog they can't transfer to their > name. > > > > What do you suggest? > > > What you need to do is find out what the problem is. The pollution specific readings and thresholds will help greatly in making that analysis. Secondly, while it is possible for someone to narrow the possibilities reading just those numbers via the internet it will take a skilled mechanic with the correct tools to make a final determination. Don't base your decision to keep or donate the car on guesses. Please take it in for an evaluation by a real mechanic. |
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