michigan_accord
07-02-2007, 09:45 AM
So the 88 accord failed 2 days ago. It failed its first test about 2 weeks ago for bad idle and timing, but emmissions were fine. After I fixed the idle and timing however, the NOx shot through the roof and it failed as a gross polluter at the 25mph test.
I am trying to figure out what caused this. Abviously advancing the timing (it was retarded too much for the first test) didnt help, but it seems like a huge jump.
The tech said he didnt think it was the egr, since the 15mph test was fine. He thought it was some leaning situation, but wouldnt that also affect the other tests??
Here is a jpg of the two different tests.
any ideas on what to start with?
http://img523.imageshack.us/img523/7943/smogtestjb5.jpg (http://imageshack.us)
Shot at 2007-07-02
I am trying to figure out what caused this. Abviously advancing the timing (it was retarded too much for the first test) didnt help, but it seems like a huge jump.
The tech said he didnt think it was the egr, since the 15mph test was fine. He thought it was some leaning situation, but wouldnt that also affect the other tests??
Here is a jpg of the two different tests.
any ideas on what to start with?
http://img523.imageshack.us/img523/7943/smogtestjb5.jpg (http://imageshack.us)
Shot at 2007-07-02