VU V6 P1372, No Reference Pulses While Cranking, error.

[tmcgr]

@Lex @lout do yous reckon that it could be an earthing issue, is there any diagrams of all the earthing points on the vu or engine bay for vt/vx/vy

 

[Lex]

@Lex @lout do yous reckon that it could be an earthing issue, is there any diagrams of all the earthing points on the vu or engine bay for vt/vx/vy

Do you have the vt - vz workshop manual?
If not, high light above an do a search.

 

[lout]

the dfi earths where it bolts to the block and is known to corrode there
busy this weekend
will pull some diagrams and reread whole post next week

 

[tmcgr]

I checked there was continuity from battery neg to the bolts and there is so im going to rule that out, i’m hoping i don’t have to go through the whole loom blind

 

[tmcgr]

@Lex @lout i’ve probed more of the loom, there’s no breaks in the 12v going from dfi to the plugs near drivers pillar, im stumped, any more help would be greatly appreciated, cheers

 

[lout]

looking at earler diagram

Part 2 -GM 3.8L Ignition Control Module and Crank (3X, 18X) Sensor Test

Page 2 of 5 : GM 3.8L Ignition Control Module and Crank (3X, 18X) Sensor Test. What Tools Do I Need to Test the Ignition Control Module (ICM)? Do's and Don'ts and Safety Precautions.

easyautodiagnostics.com

check k l m n p
please list what voltages you get and where you put your multimeter leads
eg K, black lead to k, red lead to battery positive 12.5 volts