Hey gang, after changing my starter, finally figuring out my parking light situation, and replacing numerous fluids...etc... After a 2,500 mile trip to az. From pa. I have one last dilemma for now..........check engine......light......the dreaded warning beacon from you knw where!!!!!!!!!! Two codes p0138 o2 sensor, and p1193 not sure about the second one. Anyway is b1-s2 under the driverside, downstream? And is p1193 the probable cause of the bad o2 sensor?
Disco...................spike....................a nybody.............................?

Peace and fight the nwo

 

Here is a link to codes http://www.troublecodes.net/landrvr/

They show the following:

DIAGNOSTIC TROUBLE CODES

*Codes* are used to identify the 4 Oxygen Sensors.
A = Bank A of the engine. Cylinder #1 is located on Engine Bank A.
B = Bank B of the engine.
U = Upstream of the Catalytic Converter.
D = Downstream of the Catalytic Converter.

Example:
A D = Oxygen Sensor Engine Bank A, Downstream of Catalytic Converter.

 

1193 is a Heater circuit open downstream
138 is an 02 sensor circuit high voltage bank 1 sensor 2

How many miles on your truck and what year is it?

 

97' sd7 144,000

 

Sounds like it is time for all 4 02's to be repalced.
Atlantic British has them on sale.

 

Make sure that you replace the O2's in pairs, sets are better but pairs are ok.
When was the last time it had a tune up?
When you are in need of a tune up the truck will throw O2 codes, and then mis fire codes if left to go for to long.

 

Digging up a thread...
o2 sensors should be replaced in pairs... so both on one bank at a time?
Thanks,