Nissan 370Z Forum - View Single Post - Anyone experience a p1421 code after UPREV tune

Z_ealot · 10-26-2019, 11:04 PM

I just had this same issue and my tuner had to disable simple timing in uprev in order for my Z to run correctly, I’m not sure what it is but my early production Z doesn’t seem to like any of the newer features of uprev

10-26-2019, 11:04 PM	#2 (permalink)
Z_ealot A True Z Fanatic Join Date: Sep 2010 Location: Albuquerque, NM Posts: 2,045 Drives: 09 370Z Touring/Sprt Rep Power: 10091	I just had this same issue and my tuner had to disable simple timing in uprev in order for my Z to run correctly, I’m not sure what it is but my early production Z doesn’t seem to like any of the newer features of uprev