Originally Posted by krazedav View Post
Your local neighborhood Noob - Nate
Originally Posted by Jeebs View Post
12* Battery Disconnect Direct battery input to the PCM was disconnected within the last 50 key-on cycles
21** Left O2 Sensor Shorted to Voltage Left oxygen sensor input voltage maintained above the normal operating range
21** Upstream O2 Sensor Shorted to Ground; or Upstream O2 Sensor Heater Failure; or Upstream O2 Sensor Slow Response Upstream O2 sensor voltage too low, tested after cold start; or Upstream oxygen sensor heating element circuit malfunction; or Upstream oxygen sensor response slower than minimum required switching frequency
21** Downstream O2 Sensor Shorted to Ground; or Downstream O2 Sensor Heater Failure; or Downstream O2 Sensor Shorted to Voltage Downstream O2 sensor voltage too low, tested after cold start; or Downstream oxygen sensor heating element circuit malfunction; or Downstream oxygen sensor input voltage maintained above the normal operating range
42* Auto Shutdown Relay Ctrl Circuit; or No ASD Relay Output Voltage at PCM; or Fuel Pump Relay Control Circuit; or Fuel Level Sending Unit Volts Too High (or Too Low); or Fuel Level Unit No Change Over Miles An open or shorted condition detected in the auto shutdown relay circuit; or An open condition detected in the ASD relay output circuit; or An open or shorted condition detected in the fuel pump relay control circuit; or Shorted (or open) circuit between PCM and fuel gauge sending unit; or No movement of fuel level sender detected
55* N/A Completion of fault code display on the Check Engine Lamp (MIL)
So then I popped the hood - didn't see anything...then looked underneath. I found oil all over the place on the underside - mostly on the driver's side...it looked to be originating from a line I can't identify - I don't have much experience wrenching (I was planning to supervise, lend muscle, and eat food at Jason's and check out his new CJ). The leak looks to be a little ways back from the front tire area a little bit and on the inside of the frame. At least that is where it looked to be coming from - hard to tell with oil all over.
So I got it home and took some pictures...I called Jason and talked to Steve a little bit -to find out where Jason lives...thought it was OB for some reason, which is close - I would have driven over there still...but found out he is in east Poway...and I couldn't risk driving it that far and I don't have another car so your food is safe!
Anyway, I will probably take the Jeep into ORW on Monday, because they just did my re-gear and had things apart this past week...so odds are it may have been caused by that...but I am not sure...so I am posting the pictures I took below and maybe you guys can help me diagnose it ahead of time...I need to check my oil level before I drive it anywhere in any case...it looked like engine oil to me.
What do you guys think? Can you tell anything from the pictures?
Originally Posted by Poobah View Post
I can tell that it's really dirty and leaking from somewhere
No need to offer thanks
On the other hand
it looks like you might have a leak on the clutch slave cylinder line, which could have run back and shorted out the 02 sensor and caused multiple codes.
Hard to tell without looking at it and poking around.
If you get frustrated and decide to burn it let me know in advance, there's a few parts I'd like to grab
That's kind of what I thought too. Does it shift ok?
Originally Posted by StvDiego View Post
I figured whatever was leaking has coated the O2 sensor somehow (I don't know where it is come to think of it) and caused it to throw some codes...like I said before, I see those same codes a lot...so I am kind of immune to them...but oil leaking all over I am not immune to...perhaps because of the leak gumming up the sensor, it is screwing up the computer and causing it to run leaner or something, thus the power losses randomly...and the backfires...so not really an issue once I get the leak isolated, identified, and fixed and maybe get the sensors cleaned up...
I don't know what that one line is that looks like it is the one leaking...it has a strange connection and a plastic thing on the cable...
does it smell like brake fluid? It sure looks like it's coming from the clutch but that does not hold very much fluid, maybe a pint total. The reservoir is right near the brake cylinder and is normally a screw top plastic about 3-4 inches high
these pix are of a YJ but is similar.
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