So i found out through diagrams (that i had been to lazy to look up) that the guy before me thought to disable the egr by breaking off the egr sensor module... i dont know why he didnt just unplug it but its gone and i have to go get a new one..
Quote:
Originally Posted by modulation
Dude you have an exhaust leak some where.
The only thing that would cause NOX numbers that high is that air is getting in before the cat. This causes the CAT to burn ultra-efficient and raises the temp of the air high enough to cause NOx.
I bet your Co2 and other hydrocarbon numbers are really really low.
Double check your header gasket, and your gasket between your header and your cat.
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well my CO2 measured a 14.73 and 13.9 and the hc was 36 and 34. still possible for exhaust leak or too high?