Welcome, but you fail to mention whether you checked for any codes. Your Z has a sophisticated on-board diagnostic system- use it! Throwing parts at an undiagnosed problem wastes time and money...

 

 

CELs show up only when the system detects a safety or powertrain issue that could result in a severe problem. You need to check both the ECM and BCM systems to see if there's any codes held in memory. BTW- which "sensors" did you replace? How about some details (year, model, mileage, mods) on the Z itself?

 

While letting out the clutch apply mild pressure to the gas pedal to avoid stalling.

 

This made me lol

 

Check for "pending codes".

 

Isn't there some kind of relearn after the battery is replaced? I remember a few start up and die moments that disappeared fairly quickly after i replaced mine.