Emission Specs

[20INTEGRA90]

HC ppm (Reading 93) (Allowed 174)
CO % (Reading 0.46) (Allowed 1,12)
NO ppm (Reading 1238) (Allowed 1258) (Allowed 1258)
CO+CO2 (Reading 15.0) (Allowed 6.0)


This is my emissions test from a year ago. I haven't driven the car in over year. What do I need to do to improve my numbers. 1990 Integra. 5 speed.

 

[j13]

New cat, new o2, full tune-up.

 

[cafoster]

does your car have an automatic? it could be the egr valve not opening,over advanced ignition timing orcarbon build up on the pistons orall three combined.