I have recently been having an issue with building boost. Before I would hit boost target (17psi) just fine, now it barely goes over 10. I had the car sit for 1-2 weeks as I just purchased an e39, and wanted to drive it around. Go to get back into it, let it warm up, and went to do a pull. Got 30FF code, and half engine light.
After checking all intake ducting, and verifying all vacuum lines aren't cracked. I'm stumped. Went out for dinner tonight on stock map, car built to 12 psi no issue. Flashed MHD Stage 2, and now it won't boost past 10 PSI, but now I'm not getting a 30FF code??
Knowing the symptoms of boost solenoids, I just don't see it being them, and honestly am dreading doing a turbo replacement right now. However I know I need to sooner or later, due to slight rattle.
Just wanted some more insight just in case I am over looking anything on the data side. Any input would be greatly appreciated,
Thanks
I am unable to share datazip link due to restriction, if you are willing to look I will gladly PM.
After checking all intake ducting, and verifying all vacuum lines aren't cracked. I'm stumped. Went out for dinner tonight on stock map, car built to 12 psi no issue. Flashed MHD Stage 2, and now it won't boost past 10 PSI, but now I'm not getting a 30FF code??
Knowing the symptoms of boost solenoids, I just don't see it being them, and honestly am dreading doing a turbo replacement right now. However I know I need to sooner or later, due to slight rattle.
Just wanted some more insight just in case I am over looking anything on the data side. Any input would be greatly appreciated,
Thanks
I am unable to share datazip link due to restriction, if you are willing to look I will gladly PM.
