[quote="racefan966"]OK first do not unplug it ok. You will need a paper clip and you will use that paper clip to back probe down the connector and get contact with the wire terminal ok. Now you will set you meter to the 20 volt scale and hook the red to the paper clip and the black to a good ground or neg side of battery ok.
So back probe the Dark Blue wire and hook up you volt meter and turn the key on engine off the volt meter should read.5 to 1 volt with the throttle closed ok. Now slowly lift the throttle and you should see the voltage slowly and steadly increase with no drops or glitches, when you get to wide open throttle it should read 4.5 to 5 volts. If this tests good then turn the key off and unhook your meter and remove the paper clip.
Now if there is not problem here then check the coolant temp sensor it should be on or near the back left (drivers) side of the engine. It will be a two wire plug in to it. Now unplug this and set you meter to ohms (set at 200k) and touch the wires to the terminals on the sensor itself (not the wire harness)
***Thanx--the tps went up(from just below 1.0) to just below 4 volts at max. The cool. Temp. Sensor showed nothing(cold) @0.5, 50, or 250 mA settings. At the 1K setting it swung to peg at zero (I knew I had contact--; I tried reversing leads also.) It's a $13 part. Soon to replace--right?
Friday, March 20th, 2009 AT 3:10 PM