I replaced the TPS on my 4.3l S-10 and am still having the same problem as before. It sputters and hesitates until half throttle and then smooths out. I tested the new TPS with a multi-meter and it passed the power input and ground tests. However on the power out to the PCM test it shows no voltage from idle until half throttle then starts showing voltage. At WOT it shows 3.5 volts. I exchanged the TPS and the replacement shows the exact same thing. My internet searching says that this TPS is not adjustable and my hands-on experience seems to agree. If it is adjustable I can't tell how. So basically I have two questions, is it possible that my local Advance simply got in a bad batch of TPS's and is there anything other than a bad TPS that will cause the readings to show like that. Thanks in advance for your help.
have the same problem?
Saturday, October 19th, 2013 AT 6:03 PM