High NO (PPM)

[chavezbrian101]

so i went to do my smog test and it failed due high no, my readings were...
15 mph MAX: 825 AVE: 356 MEAS:1349
25 mph MAX:764 AVE: 300 MEAS:1264
what can i do to lower the NO???

[RAZR]

Well first make sure the temp is well in the warm zone. you can run injector cleaner through it to get it to run better. Also replacing spark plugs and making sure they are gaped right with lower your n0.

[Legend_master]

Well first make sure the temp is well in the warm zone. you can run injector cleaner through it to get it to run better. Also replacing spark plugs and making sure they are gaped right with lower your n0.

This is a good start, you might want to also make sure your EGR valve is cleaned properly.

[chavezbrian101]

where's the valve & how do you clean it?

[Legend_master]

where's the valve & how do you clean it?

Located on the intake manifold. Bottom right of the picture below. Take a look at the shop manual, removal is under fuel and emissions section.