MKIV Supra 12Volt Mod
MKIV Supra 12Volt Mod This information was obtained from MKIV.com, and the original write-up was made by 'Brian B'. Credits to the original writer were due. The Concept The stock fuel pump on theContinue reading
The Vf signal is one of the more important ECU output signals, as it essentially reports on how well the ECU is adjusting the fuel trim to meet engine load levels.