haynes manual bro all the diagnostics are in one . it sucks but unless you just start replacing stuff? but that will soon get expensive have ya got a muli meter?
How to test the Throttle Positioning Sensor (TPS)
Here's the procedure out of the chilton's manual to test the TPS switch.
1. Turn the ignition switch ON. 2. Measure the voltage between the ECU connector terminal and ground.
Voltage should be as follows:
Terminal 2 and ground: 0.7-1.6 volts with the throttle fully open
Terminal 2 and ground: 4.4-4.8 volts with the throttle fully closed
Terminal 3 and ground: 5 volts
Terminal 1 and ground: 0 volts
3. Ensure voltage smoothly decreases in response to throttle opening. If measurements are not within specification, check and repair ECU terminals or harness.
4. Disconnect the connector from the throttle sensor. Measure the resistance between throttle sensor terminals 2 and 3. Resistance should be 12 kilo-ohms.
5. Measure the resistance between terminals while slowly opening the throttle valve from the closed position.
Resistance should be as follows:
Terminals 2 and 4: 10-12 kilo-ohms with the throttle valve fully closed
Terminals 2 and 4: 3-5 kilo-ohms with the throttle valve fully open
6. Ensure resistance smoothly increases in response to throttle opening. If measurements are not within specification, replace the throttle sensor.
7. Disconnect connectors from ECU and throttle sensor.
8. Measure resistance between ECU connector and throttle sensor connectors.
Resistance should be as follows:
ECU terminal 1 and throttle sensor terminal 2: 0 ohms
ECU terminal 2 and throttle sensor terminal 4: 0 ohms
ECU terminal 3 and throttle sensor terminal 3: 0 ohms
9. Measure resistance between throttle sensor connectors and ground.
Resistance should be as follows:
Terminal 2 and ground: 1 mega-ohm minimum
Terminal 4 and ground: 1 mega-ohm minimum
Terminal 3 and ground: 1 mega-ohm minimum
10. If resistance is not within specification, check and repair the harness or connector.
Here is a diagram for the pin-outs.