L-jet running rich Options

[Ctrout]

I know that everyone here has D-jet but does anyone know of any L-jet gurus anywhere? My car has smelled like it runs rich since I got it. While doing some exhaust work this morning, it was confirmed by the black soot everywhere. I thought I read somewhere that these cars ran rich from the showroom floor. I have backed the idle adjust all the way out with no apparent change in the richness of the mixture. It did change the RPM to a point though. I read in one thread something about coming in from working on the car and smelling like I had been standing next to a diesel campfire. That's me!

[scotty914]

brando i will disagree with you on this dont open the cover there is a screw to adjust the mixture, and a screw for idle. the idle screw is on the throttle body. the mixture screw is on the air flow meter is is what you want to adjust, if you change the spring rate you will mess up the mixture rate at different throttle settings.

if you tighten the spring you will lean out the motor at higher rpms but not really affect the idle, if you loosen the spring you will run righer at high rpms but idle will be screwy.

I REPEAT DONT NOT OPEN THE COVER THE SETTING IN THERE IS SET FOR YOU MOTOR ACROSS ALL RPMS TO AIRFLOW, THE SCREW ADJUSTS THE MIXTURE ... sorry about that i just want to express you can affect the way the mixture runs across the whole range in a bad way the screw is there for mixture adjustment.

disclaimer if you have the ability to get on a dyno with o2 reading you can open the meter but then you need to see what the mixture is at all rpms, the spring is set to the amount of air the motor draws at all rpms, if you change that the brain sees the wrong amount of air at different rpms, since the brain is set for specific airflow at specific rpms, you can mess that up because the air flow is not linear.