Final analysis and repair.

I finally found a few minutes to get back to this blown fuse issue. I printed out the schematic of the wiring associated with fuse #2. I also printed out the pictures and pin outs of all connectors the were fed by the #2 fuse. I grabbed my trusty volt/ohm meter and went to looking for a short or low resistance reading between the connectors and chassis ground.

After checking all connections used by fuse #2 inside the engine compartment, I jacked the Disco up and ventured under the vehicle to check the post convertor O2 sensors. As I lay on my back looking up I noted the front drive shaft had this very clean looking rub spot on it about an inch in width. Looking above the drive shaft I could see the O2 sensor cable was laying on the top side of the shaft and rubbing against it. Using my flash light it was easy to see bare wire in the O2 sensor wiring touching the drive shaft.

I removed the O2 sensor and solder new lengths of wire into the damaged cable. I replaced the O2 sensor, reset the codes and all is good once again. I have ordered a new O2 sensor to replace the repaired unit.

I had a transmission cooler line replaced on the Disco about 6 months ago. I do not have the availability of a lift, so I had a local shop do the repairs for me. It is obvious they dislodged the O2 sensor wiring harness and left it hanging loose. The entire harness to both left and right O2 sensors was just laying loose. I secured the harness properly.

Thanks to all who were involved in assisting me in my repairs.

Now the wifey can "go on safari" once again. This what she refers to when she drives the Disco.

God Bless

Bigun

 

THANK YOU for posting the final repair.
Glad she is up and running again.

 

call the shop and let tem know and just for laughs fax them the bill for the O2 sensors

 

I am having the same problems with the P 1884 and P 0102 codes. I have replaced the flow meter with a Genuine unit and it has not fixed the problem and has the same problems as Bigun's DII. I don't have any blown fuses or rubbing O2 sensors. The truck runs great but has these too codes only. I have done everything that the T4 test book tells me and still no luck. does anyone know if low trans fluid can cause this problem?
Thanks
Evan
rebornco.com

 

I should have added that it is a 2000 DII SD with air injection and 102K miles. I just put new heads on it but the codes were present before. I did find a lose wire a minute ago in the fuse box. it is a yellow and black wire right next to the alternator hookup. The light still won't stay off so I don't think that was the problem. another note is that when I pull the maf wiring plug off when the truck is running it makes no difference in the idle. Normally they run rough or die.
Thanks
Evan

 

did you ever figure this out?

 

No I have not figured it out. The truck runs perfect but the light is still on.

 

Excuse my french but holy sh#!. I've had these exact codes since I replaced my engine block last year. Low and behold, I checked my fuse box and the second fuse is blown. Thank god for the forums. Thanks for the help!!!