Stuttering/Hesitation

Hey, I'm having some similar issues with my car, and haven't checked into that yet. I'm having some other symptoms and I'm wondering if this fixed any of them as well.

- Getting lean afr codes that's it.
- The car under high boost(9psi, car makes about 22psi on a cst5) cuts out/stutters/hesitiates whatever you fancy, and sometimes spools up after that
- Car runs lean under any boost/load
- Fuel pressures are above 1800psi during load
- Compression tested, all cyl. good and close in value

I am digging through my logs now again as it has been awhle. Just wanted to throw this out there first.

 

Use this sheet as it can help us help you

https://mazdaspeeds.org/index.php?threads/troubleshooting-sheet.14899/