Well you wouldnt think it should be the TPS but I never assume that anything is good. I highly recomend a digital multi meter as it is much more acurate and pics up changes faster. Also a digital multi meter supply's its own power which is better on the computer in your car. So now it is looking like it might be the PCM (power control module, computer) or the TCM (Transmission Control Module). Now I need you to use the pic below to find the TCM it is near the winshield washer reservior. Unplug it and then go back and run a test on the TPS again. Now this time you will just check what the voltage is at both wires with the throttle closed and key on engine off. After you get the voltage readings then turn key off and plug the TCM back in. Now if you get more then 1 volt then the TCM is bad and you need to replace it. If less then 1 volt then we will check the PCM.
To check the PCM you set you meter for ohm now you check the ohms between the orange wire with the dk blue stripe and the black wire with the light blue stripe at the TPS connector. If there is less the 5 ohm then you have short in one of the two wires. If you get more then 5 ohms then the PCM is bad and needs to be replaced. Let me know what you find.
Thursday, October 1st, 2009 AT 9:33 AM