Hi All

Subject: 92 Cierra 3.3L 4 spd ASM fail , NOX

#'s Pre Cat HC 132ppm

CO .65 %

02 .6 %

NOX -3200 ppm

#'s Post Cat HC 65 ppm

CO . 3%

O2 .2%

NOX- 2400ppm

What do you think , system is in fuel control not great 02 p/p .3 to .8 V 2.2 hertz ... Login to read more.