If you're certain it's the TPS adjustment causing your problem, follow these guidelines.
When you pull out the TPS plug, the pins on the TPS itself are labelled as shown in the diagram - VC is closest to the firewall.
Now, go get your tools, a multimeter and a feeler gauge.
- Remove the intake hose and that engine hook with all the vacuum lines on it, so you could reach the throttle-stop screw with your feeler gauge. Remember where everything goes - take pics if u need to.
- Barely loosen the two screws holding the TPS so that it turns with firm pressure (that way it doesn't lose the adjustment when you're trying to tighten it back).
- Follow the diagram so that the resistance readings on your multimeter are all within the ranges for each gap with the feeler gauge.
Reset ECU and enjoy your ride.