High Idle Problem TPS voltage test procedure

[hpbadger]

Originally Posted by tomtom72

The easiest way to do TPS voltage is a scan tool. Next is get ya some sewing needles and back probe the wire at the connector, be careful that you don't stab the insulation but get the needles into the brass terminal ends of the wire inside the connector.

The first time I checked my TPS voltage I had some phone wire laying around and made small probes from that, about 2" long and used a small needle nosed pliars to insert it into the back of the connector. At idle TPS = .54 volts.

Did you go over to the netreg site and look up the PROM recalls & TSB's? Ther were a coupla of updates to address idle problems. The TSB's describe the symptoms and cures (new PROMs) by model year.

Tom
Oh, forgot I think Corvette Central or MidAmericaMotorWorks has hraness test kits that you can buy to use to back probe all the main connectors, TPS, IAC, IAT, Oil & H2O....ya know ya yank the connector and put their connector in and it is a "Y" deal with a place for ya to put the VOM probes and still have the sensor in the loop.

Tom thanks very much for all the info I don't know where I would be without the help from folks like you on this forum!

hpb