Egr

[Rusman]

I need to try to figure out why my NOx emissions are so high. I've been told that this is probably due to a faulty EGR. I'd like to use my TwEECer to examine what the EGR is doing. Does it do this, and what should I look for?

[Saleen91]

I believe the RT can log EGR. I've never done it though. Usually the NOX being high is a sign that the car is too lean. You can either increase your fuel (base fuel table) or back down your timing some (either in the TwEECer or at the dist)...or both.

A wideband helps greatly when dealing with issues this specific.