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The first race report for 2021 has to do with the preparations for the race season. Yesterday was the first test of our repairs to the ECM failures of last season. Over the winter, the entire main harness for the HR was pulled, checked and repinned. There were some sections from the drive-by-wire throttle pedal to the ECM that were found to be slightly damaged and possibly causing intermittent shorts in that section of the harness. These sections were repaired/replaced and properly soldered in position and the entire wire bundle placed in a wire harness to protect it.
Obtaining a new 23710-EV12C ECM was not easy or cheap, but was loaded with a stock tune and ready to go. After plugging everything in, we crossed our fingers and turned the key. The HR started right up and ! had full throttle control. The next step was to get a fresh tune on it, and I'd been able to procure an appointment for today to get that done. All in all, we should have had this Z ready for battle exactly one week before we'd pack up for our opening race.
Unfortunately, that's not what happened. After getting the trailer hitch on, the trailer loaded and the Titan backed up, I found the HR would no longer idle smoothly and worst of all, had almost NO throttle response! Crap- we're dead in the water...AGAIN.
Obtaining a new 23710-EV12C ECM was not easy or cheap, but was loaded with a stock tune and ready to go. After plugging everything in, we crossed our fingers and turned the key. The HR started right up and ! had full throttle control. The next step was to get a fresh tune on it, and I'd been able to procure an appointment for today to get that done. All in all, we should have had this Z ready for battle exactly one week before we'd pack up for our opening race.
Unfortunately, that's not what happened. After getting the trailer hitch on, the trailer loaded and the Titan backed up, I found the HR would no longer idle smoothly and worst of all, had almost NO throttle response! Crap- we're dead in the water...AGAIN.