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07 Rubicon Error Code 4/TPS Replacement Help

31K views 30 replies 5 participants last post by  Rincon05  
Welcome to the forum.

As I understand it the TPS is held by two screws (tamper proof IIRC) and you position the sensor, and it can be moved around a bit to get the proper position to give you the proper readings, then you tighten down the bolts holding it in that position.

I had a TPS code on a Foreman that ended up being the connector not making good contact. The TPS code would flash, but the TPS checked out fine on my ohm meter. I cleaned all the connections and greased them, and swapped two different ECU's in place before it stopped. Then the original ECU and the new ECU would both work fine, not throwing the code. I think I had some slight corrosion up in the connector on the ECU on that particular pin and removing and reinstalling ECU's cleaned up the pin and socket enough for it to make a good connection. Hasn't throw an error code since, and that was about 3-4 years ago.

Did you check the readings on your TPS that's on there now?
 
Got info on the TPS recall Toodeep?

What all models did it cover?

I've got an 07 in my yard that throws different codes from time to time, but the guy just turns the key off and back on and it will do fine again for awhile (I put new tie rods on it and an HID in his pod light for him, was going to grease all the connections to see if it helped). I think his threw a 5 and a 6 last time we rode.
 
Sweet. I'll run his vin and see if it's been done.

Thanks!
 
What parts did they order? Be interesting to see if they just throw parts at the problem or if the new parts fix it.
 
Well I took apart the connections on that 07 I had in my yard and cleaned and greased the crap out of all the plugs. We went on a VERY wet ride last Saturday and his Rubi didn't throw a code all day.

Electrical problems at $100/hour will get real expensive real fast. I'd try cleaning all your connections and greasing them before I paid a shop anything. That needs to be done anyway.
 
It's not too hard. Take the fenders off, which is a PITA, but not hard, just time consuming.

Unplug every plug you see on the thing, get some CRC contact cleaner and spray down in the plugs, and then put a gob of dialectic grease in the female end and plug it in. Some people say to only grease around the edge of the plug but I gob the crap in there.
 
No, not if you have the key off while you're doing it. I'd probably do it when I was through given all your issues though. Can't hurt.
 
If you are bored, adding a little dialectic grease to the connections won't hurt anything.

What did the dealership do that supposedly fixed the problem?
 
Glad you got it fixed! So if it was the recall it didn't cost you anything? Even better!
 
A bad battery will cause issues galore on a Rubicon. Make sure it's charged up well and the battery cable ends are clean and well connected to the terminals.