High nox on new stroker 4.6
Posted: September 20th, 2023, 8:15 am
So I finished my stroker 93 block with 98 head 24lb injectors
All new sensors ,battery, temp sensor relocated to t stat housing ,
.has been running great no check engine lights power all thur the rpm range .
Only problem I'm having is high nox so failing smog
Thought maybe was a issue with a exhaust leak at the flange but fixed it and replaced my cat and still failed thinking might be a fuel issue ?
My scr is 9.3
Think a adjustable map would help ?
Is their any standalone ecu that I can run that i could possibly tune as well
All new sensors ,battery, temp sensor relocated to t stat housing ,
.has been running great no check engine lights power all thur the rpm range .
Only problem I'm having is high nox so failing smog
Thought maybe was a issue with a exhaust leak at the flange but fixed it and replaced my cat and still failed thinking might be a fuel issue ?
My scr is 9.3
Think a adjustable map would help ?
Is their any standalone ecu that I can run that i could possibly tune as well