1992 Honda Prelude 2.3si



Luckily I saved my test from two years ago

Test from 06/2010 - only thing changed after the test was on 11/2011 the distributor, and a few screws on my gas tank (also had a stock filter on in 2010, 2012 I have KN reusable cone filter)


2010 test - pass

http://i1131.photobucket.com/albums/...0smogtest2.jpg



2012 test - failed

http://i1131.photobucket.com/albums/...2smogtest2.jpg


My 2012 results are so high compared to my 2010 tests. Any ideas, the guy says my timing looks off. Do I need to advance the timing on my car? Would that only fix one of those? Should I run any fuel cleaner or seafoam in the tank, suck some seafoam through the brake booster? Thanks for advice.

 

Neither linked worked, at least not for me. Did you do anything that would cause your timing to be off? I wouldn't run SeaFoam on a car as old as yours, it'll most likely damage the seals. When was the last time you changed the thermostat? If the car isn't running at proper temperature it'll throw the ECU off.

 

thx, I don't think I ran it long enough, warm enough yesterday before the test.