Emissions (etest)

Well as I had a terrible feeling it might, my celica failed. Not terribly but not a pass. If you have some tips please let me know. ( car was Hot, new spark plugs, new magnaflow cat)

I head advancing and retarding timing does different thing depending on what you do. I read advancing will lower CO% and retarding will lower HC. Does anyone have more insight or facts to go along with this?




This Ill be doing next time.
-Adding Methyl Achol to the tank (gas antifreeze)
-Upped tire pressure to 35psi
-removign air filter
-leaning out car by unplugging small vaccume line ( any suggestions as to witch one?
-gonna run seafoam through the engine and fuel tonight

Should I run 87,89 or 91 (10%ethane for sure) I hear mixed info all over the place.


HC=80 CO%=.59

 

Technicaly It was never called a high-flow cat, just a universal. I think Nox are dealt with by the cat so that aspect is ok, Im thinking O2 sensor, but I sea foamed the car and it didnt blow up, seems to be runnnig fine, Im running some through the fuel and injectors too, I got the Methyl alcohol to add, less rolling resistance and a leaner mixture with no air filter I hope it will pull through. Were my number off by a lot? or is 16 points in HC and .3% in CO% a just shy of making it?

P.S. Can anyone input on the idea of removing a small vacume line on the manifold to make the car run leaner? Would this work?

p.s.s anyone with experience palying with timing to change emission please comment an ill reward you with gold

p.s.s.s Is there a how to for testing an O2 sensor?

 

thanks for the O2 test, ill try that tomorro I hope. The only flaw I might have spotted in the vacuum trick is the O2, could it pick up on the leaner mixture and make it richer? I guess it depends on what controlls the mixture, Is it the MAF or O2 Id assume a combination of each somehow. Theoreticaly a leaner mixture should reduce emissions correct?

 

I tested the O2 sensor and It might be border line. It pinged 8 times in 10 seconds, and the test specified 8 or more. Should I replace it? What have you guys scored when doing this test?

 

I know a few people have dont this test, if I could get some numbers on how many reps they got it would help a lot. Thanks bro's (p.s are there still girls on this site?)

 

I checked my timing today, it was at about 12-13 degrees, this might help to explain the better mpg and power I was expecting from a stock engine. I retarted it to about 8 or 9. The car has failed twice, but i think this might be the key. I did not jump the E1 and T1 terminals tho, I think I was technicaly suposed to. Will this make any differience in the reading of the timing gun?


any I got 23-24 reps on the o2 secsor test in 30 secodns. thats liek 8 per 10 seconds. Has anyone run a test on theirs, and found it to have sent more than 8 signals a second? (im worried I sould be getting like 12)

 

thanks 165, this emissions test is ruining my birthday. First thing tomorro I will check the the timing correctly, I believe from re-reading the information it will affect the numbers.

EDIT: Yes the terminals have to be shorted or 10deg will actually only be about 6

 

ok i got my problem I guess. Ill do the next part of the test and see what happens. How do you check for code 25 and 26's? I shorted t and e1 but no check engine light is coming on.

p.s is there an MAF test that can be done to rule out it as the problem?