Over complex control systems are the reason I have stuck to cars from the last century for conversions, my 1990 hilux had exactly 1 microcontroller in the ECU w

Over complex control systems are the reason I have stuck to cars from the last century for conversions, my 1990 hilux had exactly 1 microcontroller in the ECU which went straight in the bin when the electric motor went in. I also stuck with a manual gearbox even though it rarely gets out of 3rd. My other 1996 BMW 528i conversion has been on going for 3 years due to over-complex engineering, I ended up throwing out the automatic transmission and am now using a manual transmission fixed in 3rd gear, basically using the auto selector to select R or D only, the digital logic to get a 1996 528i auto transmission selector working is just a few diodes and resistors.