Service Electronic Throttle Control

[pentastartech]

Hello all, first time posting in a forum. I have a 2017 dodge ram 1500 with 3.6l pentastar . I just replaced a bad rocker arm on left bank, and immediately after reassembly I have a permanent “Service Electronic Throttle Control” message. I have done this job many times, I am very confident in my abilities but this one’s got me stumped at the moment . I tried a new throttle body, tried to “reset” throttle body, and I tested voltage between Pin 1 (Throttle Motor +) and battery ground . 1.29 Volts and doesn’t change. I don’t currently have access to a wiring diagram that shows the throttle wiring all the way back to the PCM. I usually use pro demand to diagnose this type of issue, however I do not currently have access. Any help is greatly appreciated.

 

[SitKneelBend]

Hello all, first time posting in a forum. I have a 2017 dodge ram 1500 with 3.6l pentastar . I just replaced a bad rocker arm on left bank, and immediately after reassembly I have a permanent “Service Electronic Throttle Control” message. I have done this job many times, I am very confident in my abilities but this one’s got me stumped at the moment . I tried a new throttle body, tried to “reset” throttle body, and I tested voltage between Pin 1 (Throttle Motor +) and battery ground . 1.29 Volts and doesn’t change. I don’t currently have access to a wiring diagram that shows the throttle wiring all the way back to the PCM. I usually use pro demand to diagnose this type of issue, however I do not currently have access. Any help is greatly appreciated.

It may be referring to the Gas Pedal. I think I've had this issue temporarily with a Pedal Commander installed. Try inspecting/re-seating the plug on your gas pedal.

 

[pentastartech]

Put the scanner to it this morning, and I’m pretty certain I have a large vac leak.. It’s acting like a vac leak and additionally it’s coding for a vac leak. I have done this job many many times on dodge caravans, 300s, Durangos, this is the first time on a dodge ram. I’m going to try and find a vacuum line diagram , and go from there . Maybe even pull the intake back off .

 

[pentastartech]

It ended up being the upper intake not properly sealing to the lower. I have put these together so many times , a lot of times the plastic threads are stripped out but they still bolt on and seal with no issues. This particular engine had about 3 out of the 7 mounting threads stripped. Took the intake back off, reseated, all good.

 

[Yardbird]

How many miles on that Pentastar? Any idea about OCIs and type of oil?

 

[pentastartech]

This particular engine customer says he gets it changed every 6,000 - 7,000 miles and says he purchases synthetic blend. I worked for a place near the Metro Detroit Airport that puts 100,000 miles on their cars a year average. They were doing 10,000 mile OCI with a synthetic blend oil and I replaced so many camshafts and rocker arms there it’s not even funny .