It's definately time to change it then. I'd wager that a $30 filter will make the trouble go away. I usually change mine every 6 months.

The leak issue is probably because... (follow this if you can!)

The fuel pump is attached to the engine, so it pulls a vacuum on the line to draw fuel from the tank.
The fuel system and it's connectors were originally for gas versions with an in-tank fuel pump (e.g. pressure, not vacuum)
The fuel line connectors at the tank, when subjected to sufficient vacuum (cold, thick diesel fuel and a partially clogged/dirty filter), can't prevent air from being sucked in - so air enters the system..
The fuel filter head assy is at the highest point in the system, so the air all collects there - tending to cause hard starts and rough acceleration/smoke. Also, the air can allow it to overheat and cause failures in the fuel heater (also in the filter head).

A clean filter may solve most of the problem - but a far better solution is to add an inline or in-tank fuel pump. That will stop the ingestion of air and those problems will be gone.

At least - that is a common source of the 'leak' codes.

Mark

A friend just sent me this:

http://www.bba-reman.com/content.aspx?c ... in_P_Codes

P0093 Fuel System Leak Detected - Large Leak
P0201 Injector Circuit Malfunction - Cylinder 1

Looks interesting.

Anyone know where to buy replacement injectors for our CRD Libby's?

Anyone know where to buy replacement injectors for our CRD Libby's?

RockAuto, about $900 each.

Rixram - I'd suggest you go to Sir Sam's NOOB site and download both the 2005 and 2006 Factory Service Manuals. You need both as the 2005 has the illustration keys that the 2006 lacks and the 2006 has the cooling and diagnostic information the 2005 lacks. Look at those 1st 2 codes for what the FSM says not what a generic site says. They both appear to relate to "electrical system" issues not fuel leak, although changing the filter won't hurt. I note that you have a 2006 which brings up the possibility of wire chaffing problems where the main harness goes behind the fuel head.

Bottom line is at this point I would not leap to the conclusion that injectors are the problem and even if they are I'd chat with a decent diesel injector shop before I shelled out for replacements.

As to the stealer not having anyone qualified that's BS. If they have the standard scan tools, jumper wires, a volt/ohm meter, and can read the FSM the diagnostic tests for the electrical problems as listed in the FSM are pretty simple.

You should be ashamed of yourself for letting it go for so long on WVO without changing the filter.

If your filter has been clogged for a while (one year), your lift pump will in time force or dislodge trapped dirt through the deteriorating filter element, possibly trashing your injectors or the CP3, etc.

Rixram - based on your Bio comments I agree with Racer, start with a filter change. As for the NOOB guide I'll simply pass on what someone else said a few days back to the same question; hit the back button and look up on the screen; it's a sticky toward the top of the topic list. Read thru it as there is lots of good stuff, link to the FSMs is toward the end.