The OBD codes P1232 and P1244 on a Duramax 6.6 diesel could mean that the surge wire is mis- firing. Check to see if there is chafing on the chuggle connector circuit.
where is the fuel pump fuse or relay on 2005 duramax diesel
310hp
14.6 qts
10 qts
10gt.with filter and aways replace filter.
If it is cold outside then yes it is best to plug it in to make for an easier start and less stress on the engine.
where is the erg valve located on a 2005 DuraMax 2500
No
none in 05'
On intake manifold behind ac compressor
with the 6.6l duramax 15qts. with filter change
Prime a Diesel