Re: Stringer shift
The ESA is on a bracket down beside the exhaust manifold on most, but looking at it will tell you nothing. It's a big puck of epoxy. With the engine running in neutral, depress the 2 switches on the shift converter with your finger 1 at a time.
1 of them should make the engine stumble and almost stall. If that happens, the ESA works. If that doesn't happen you have a faulty ESA or wiring problem. If the ESA works and you still have trouble getting to N, then switch and cable adjustment is in order. Follow the manual step by step.