GravyDavey
NAXJA Member
- Location
- San Diego, CA
"Once you correct the CO levels, your NOx will rise a bit. The rich condition cools the exh a bit and can lower your NOx levels. Once you clear this, exh temps may rise and increase NOx but the working EGR will keep them in check."
You were spot on here. NOx went up quite a bit on the 2nd test. The only thing I changed though was to put on a new cat.
You were spot on here. NOx went up quite a bit on the 2nd test. The only thing I changed though was to put on a new cat.