My GEMS P38 has been having idle problems off and on. I let it sit fo 3 or 4 months and now it won't idle at all. Started to do some basic diagnosis - the nanocom says TPS voltage is only .02v. Basically 0. So I back probe the TPS connector, and realize it's not getting 5V at the connector. Figuring a problem with the harness or connector, I checked at the ECU connector. No dice - there's not 5V there either.
I disassembled the ECU and found only one through-hole 5v regulator but I'm seeing 5v on the output leg of it. I'm totally stumped here. Is the out-going 5V always present at the connector? Or is there internal ECU control of the voltage? Because if it's the former I'm thinking it's a bad solder joint somewhere and I can jumper the 5V direct to the TPS connector.
Or should I be looking for another ECU?
I disassembled the ECU and found only one through-hole 5v regulator but I'm seeing 5v on the output leg of it. I'm totally stumped here. Is the out-going 5V always present at the connector? Or is there internal ECU control of the voltage? Because if it's the former I'm thinking it's a bad solder joint somewhere and I can jumper the 5V direct to the TPS connector.
Or should I be looking for another ECU?