MAP Multiplier not updating
Posted: January 31st, 2025, 4:38 am
Hi, I have wired in my GM 3 bar MAP sensor today and just viewed the voltage and KPA in the dashboard, without the engine running and it looks to be working perfectly. I have 1.52v with is about 38kpa with the MAP multiplier for the stock MAP sensor.
I have edited by tune and set the MAP multiplier to 63.33 as a starting point, saved my tuned, reopened the tune and validated that the new multiplier is saved. However, after flashing the new tune onto the ECU, it has no effect. When I log the the Volts and Kpa it is as it was before with the ~38kpa, hence it is still using the old multiplier.
I blew into the new map sensor and the logged values change, so it is definitely logging and the MAP sensor is working
I have tried flashing the ECU about 10 times and get the same result.
What is the issue?? Thx.
I have edited by tune and set the MAP multiplier to 63.33 as a starting point, saved my tuned, reopened the tune and validated that the new multiplier is saved. However, after flashing the new tune onto the ECU, it has no effect. When I log the the Volts and Kpa it is as it was before with the ~38kpa, hence it is still using the old multiplier.
I blew into the new map sensor and the logged values change, so it is definitely logging and the MAP sensor is working
I have tried flashing the ECU about 10 times and get the same result.
What is the issue?? Thx.