Originally Posted by BrianBrave
You might be able to cheaply integrate your prototype into the actual foot pedal assembly without the need for connectors. It's easy to remove and not to expensive to replace.
I would humbly suggest that you use two op amps in your design. That way if one IC or circuit failed, the other circuit would still supply the ECU with a throttle position signal. The SB is a single-point-of-failure device.
Also, if you can vary the gain with a three position resistor or a variable resistor - that would be sweet. Say 1.2, 1.35 and 1.5.
Good luck...