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Old 12-10-2011, 03:51 PM   #31
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Great news!!!!

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Old 12-10-2011, 06:11 PM   #32
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Old 12-10-2011, 06:39 PM   #33
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Can you get a picture of the ground location?



Quote:
Originally Posted by willee51 View Post
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Picked her up this AM and been in her all day running errands!

They even showed me the location of the ground fault.

The notes from my 2nd visit:

“Diagnosed and found damaged coil and checked for shorts. None found. Found voltage and ohms are the same as other cylinders.. Replaced PCM & Test Drove. Coil popped again????? Instructed to hard-wire coil per “STAR” & replace coil. Found Map Sensor, TPS, & ETC ……. Lost Grounds. Found wires grounding against AC Line, repaired and insulated wiring over AC line.”

So far she is running like a top!

Being back in my 2012 JKU is as good as REAL sex

------------------------------------------
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Old 12-11-2011, 07:23 AM   #34
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Electrical issues are one of the hardest to find-Glad they got it fixed. Factory wiring diagrams are usually pretty poor.
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Old 12-11-2011, 09:01 AM   #35
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Quote:
Originally Posted by willee51 View Post
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...Being back in my 2012 JKU is as good as REAL sex

------------------------------------------
Really!

On another note I'm glad its fixed and it's also nice that they were able to isolate the problem so that you feel more comfortable in the Jeep vs the phantom problem that just fixes itself.
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Old 12-12-2011, 05:19 PM   #36
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Talking Still ging strong..........

Three days, since out of the shop and still running STRONG

Damn, I LOVE driving this thing
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Old 12-12-2011, 05:42 PM   #37
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Glad to hear it. There's nothing worse than a new toy you can't play with!
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Old 12-12-2011, 08:20 PM   #38
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That's crazy, I spent a month trying to figure out what was causing my ESP BAS ABS and traction control lights to stay on. It was 2 weeks after I put on my lift. I must retorqued the suspension parts at least 3 times and checked the steering wheel 10 times. It turned out being a ground wire for the ECU/PCM not making a good contact with the module. You'd thing they'd hard wire the ground to the PCM instead of connecting it to one of the mounting screws.

In either case. I'm gkad you are back in the game.
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Old 12-12-2011, 08:29 PM   #39
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Quote:
Originally Posted by Vin View Post
That's crazy, I spent a month trying to figure out what was causing my ESP BAS ABS and traction control lights to stay on. It was 2 weeks after I put on my lift. I must retorqued the suspension parts at least 3 times and checked the steering wheel 10 times. It turned out being a ground wire for the ECU/PCM not making a good contact with the module. You'd thing they'd hard wire the ground to the PCM instead of connecting it to one of the mounting screws.

In either case. I'm gkad you are back in the game.
Was that part of the sPOD advice you gave me a few weeks ago?
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Old 12-12-2011, 09:55 PM   #40
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Was that part of the sPOD advice you gave me a few weeks ago?
Yes, it's crazy what a stupid ground wire can do, especially with these computers. I'd love to throw a V8 in with a carburator (or 3) and skip the computer all together.
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Old 12-12-2011, 10:15 PM   #41
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Man, I'd buy that Jeep.
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Old 12-13-2011, 03:07 PM   #42
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Quote:
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Yes, it's crazy what a stupid ground wire can do, especially with these computers. I'd love to throw a V8 in with a carburator (or 3) and skip the computer all together.
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Old 12-14-2011, 08:20 AM   #43
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They hard wire it to a clean metal surface area to have the least resistance in the circuit. Having a ground tied to other grounds can cause resistance issues as well as other issues. Not to mention that a ground can be overloaded if it is a smaller gauge wire and has to many circuits on it. So the vehicle is broken down into sections with grounds in several areas to keep the ground wire run short as possible. The longer the wire, the more resistance in the wire so the ground is not good.
Some modules are also high current modules and need a larger wire than what would be desired to run thru a long body harness, causing the harness to be rather stiff. With grounds, the shorter the better, a ground that is over 13 inches long can also become an antennae picking up interference which may be undesirable to the module.



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Was that part of the sPOD advice you gave me a few weeks ago?
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Old 12-14-2011, 03:45 PM   #44
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Talking

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Originally Posted by xsdbs View Post
They hard wire it to a clean metal surface area to have the least resistance in the circuit. Having a ground tied to other grounds can cause resistance issues as well as other issues. Not to mention that a ground can be overloaded if it is a smaller gauge wire and has to many circuits on it. So the vehicle is broken down into sections with grounds in several areas to keep the ground wire run short as possible. The longer the wire, the more resistance in the wire so the ground is not good.
Some modules are also high current modules and need a larger wire than what would be desired to run thru a long body harness, causing the harness to be rather stiff. With grounds, the shorter the better, a ground that is over 13 inches long can also become an antennae picking up interference which may be undesirable to the module.
------------------

I have learned something now. Thanks
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Old 05-29-2012, 04:20 PM   #45
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Taking this info to the shop...

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