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Tune reverting or changing on its own
Posted: Mon Jun 05, 2023 10:29 pm
by Jbrracer
Saturday I lost the main ground to the t-stat housing ran like junk fixed ground and it went lean on afm.
Plugging into ecu/s300 it had/has a tune that I’ve never seen before things that were different are fuel tables most parameters including vtec points along with over heating protection rpm.
Does this seem possible? I feel like I’m losing my mind.
Thank you in advance
JB
Re: Tune reverting or changing on its own
Posted: Mon Jun 05, 2023 10:30 pm
by Jbrracer
Also had a data log that was NEGATIVE 38 minutes long and ect temp was 300+
Re: Tune reverting or changing on its own
Posted: Tue Jun 06, 2023 9:21 am
by Spunkster
What is the serial number that is on the s300 board inside the ECU?
From Help, About, what is the version of software you are using?
Re: Tune reverting or changing on its own
Posted: Wed Jun 21, 2023 6:41 am
by Jbrracer
Spunkster wrote: Tue Jun 06, 2023 9:21 am
What is the serial number that is on the s300 board inside the ECU?
From Help, About, what is the version of software you are using?
Spunkster sorry about the long time between replies, I've finally got back to the car.
2.8.2.0 build 3207
s300 serial number 61274 bought from HA motorsports last July.
When I last found this problem, I reloaded the original tune for the car and they raced the following weekend and same issue again.
odd looking data logs and a missing/reverted tune from both times and the original tune.
I'll include both tunes and the odd data log.
Re: Tune reverting or changing on its own
Posted: Sat May 25, 2024 11:54 pm
by Jbrracer
ecu was replaced by HA motorsports no word on what went wrong with it.
Thank you!