Hey guys I'm on the side of the road right now and I need help my car is running super lean like 19 20 afr; this morning it was running fine on my way to work everything was great now it's horrible, I'm on my phone so I can't load msq or datalog but I need suggestions!

 

Does it still drive?

 

Barely it coughs and sputters and jerks

 

If its missing you will get super lean readings. COuld be something as simple as sparkplugs or plug wires.
If it will drive I would advise you try to drive it home. Youre not going to hurt it if you stay out of the throttle, being super lean at cruise just makes the engine buck,

 

Double check wiring, both at the sensors and at the MS. Make sure something didn't wobble loose. Check any grounds that are accessible or that you can get to.

Be careful on the side of the road.

 

I'm on my way home now it has spikes of being properly tuned it will clear up go to 14.7 or 13 for a brief second then back to ****