ETC issue... thinking caps please fellow jeepers. - JKowners.com : Jeep Wrangler JK Forum
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post #1 of 4 Old 05-04-2017, 06:06 PM Thread Starter
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ETC issue... thinking caps please fellow jeepers.

Maybe you guys can help me out with this. it's aggravating the crap out of me. I'm throwing money at it and I need to go through the process to figure this out. My codes are 2127 and 2138. I've tried everything I can think of. it started off happening once a couple months ago, went couple weeks, then shorter, then I went on a 500 mile trip and since it does it every time I drive it. My known triggers are both, allowing it to idle to running temp and throwing, or hesitation on strong throttle in a couple spots and it throws, to hitting a vibrating series of or solid bump. What I've done so far, is had it to the dealer 3 times with one update, which didn't work, and no other positive from it. They aren't much help because I run a charger and they eventually say, probably something with the charger so I want to smack the shit out of them. The electrical pathway never gets to the charger. I replaced the PCM when I added the charger in November so I don't think that's it. I changed the clip going to the throttle body because it had a broken fastener. I changed the throttle body. I looked at the pins there and all seem to be ok. I've changed the accelerator pedal, reset the memory, backed out the tune and reflashed it, looked at the female on the APP clip and didn't see anything obvious although its a bitch to get to so I didn't spend much time or get the best of looks at it because my back is too old now to stay bent backwards that long, but I did verify that I could see good flash of metal at the females and no visible corrosion. I pushed the clip in and detached it numerous times to make sure it was seated properly. I've wiggled it running as with the other clips to see If I could throw it. along with the brackets at the pcm. I'm kind of at a loss here and looking for anyone with an epiphany to point me somewhere. I haven't checked voltage or resistance which is probably where I should've started but I foolishly thought that would be the first place the dealer would've looked. Now I'm not so sure. Any help is appreciated. I can't race or wheel like this and it sucks.

'13 black 2dr auto, k&n in, magnaflow out, ported T body, Edelbrock charger, 3.5 RK Travel, 4:56, Aussie front, 35 Nitto trails, Warn Zeon 8s, bumpers etc...
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post #2 of 4 Old 05-04-2017, 06:16 PM
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Welcome to the club, I've been dealing with the same shit and replaced a ton of stuff and still troubleshooting
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post #3 of 4 Old 05-05-2017, 10:20 AM
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I think you need to check the wiring going into the plugs.
Just because the pins are properly aligned and the plugs snap firmly in place doesn't mean the wires going into the plug are in good shape. A pin may not be properly seated within the plug, a wire may have been pulled on, thus breaking some of the strands within the particular wire (voltage will have a harder time transmitting and a hot spot is created, further hampering the voltage). Maybe, farther down the line, there's abrasion damage exposing wires to intermittent ground that only shows up when things get hot.

You can check for proper pin seating by trying to push each individual pin into its plug. It won't take much to move it if it isn't properly seated. If a pin can be pushed in, pull on it...it should click into place. Do not force anything. If a loose pin won't click into place by pulling, try pushing on its respective wire from the backside.

One thing you might try is dielectric grease. It won't solve the problem but it may cure the symptoms by providing somewhat of an heat sink within the plugs...and its good corrosion prevention.
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post #4 of 4 Old 05-05-2017, 10:48 AM Thread Starter
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Quote:
Originally Posted by funfred View Post
I think you need to check the wiring going into the plugs.
Just because the pins are properly aligned and the plugs snap firmly in place doesn't mean the wires going into the plug are in good shape. A pin may not be properly seated within the plug, a wire may have been pulled on, thus breaking some of the strands within the particular wire (voltage will have a harder time transmitting and a hot spot is created, further hampering the voltage). Maybe, farther down the line, there's abrasion damage exposing wires to intermittent ground that only shows up when things get hot.

You can check for proper pin seating by trying to push each individual pin into its plug. It won't take much to move it if it isn't properly seated. If a pin can be pushed in, pull on it...it should click into place. Do not force anything. If a loose pin won't click into place by pulling, try pushing on its respective wire from the backside.

One thing you might try is dielectric grease. It won't solve the problem but it may cure the symptoms by providing somewhat of an heat sink within the plugs...and its good corrosion prevention.
Thanks, I appreciate it. Will definitely try that next. You may be right, could be strands damaged. Didn't think of that. Read a lot about the harness on JK's being tight at the pedal, but was more thinking pulled pin vs, actual wiring damage. Will try the grease also.

'13 black 2dr auto, k&n in, magnaflow out, ported T body, Edelbrock charger, 3.5 RK Travel, 4:56, Aussie front, 35 Nitto trails, Warn Zeon 8s, bumpers etc...
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