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I had a similar issue with my E38 with L98 6.0lt.(converted into Holden Rodeo) fans would not turn off (they ran all the time, even from cold).
Turned out to be the fact that I did not have air...

Thanks, thats along the lines of what I suspected...
I will try that and let you know.

Dave

Hello all,
I am sorting out the VSS wiring on my conversion. I am getting P0502 for the VSS (which makes sense as it isn't connected) can anybody enlighten me as to the way I need to wire...

Can you see engine RPM in the HP scanner when cranking?
Also, make sure you are not losing power to injectors (or ecu) when cranking as sometimes you may have power where necessary with ignition on,...

I have finally solved the issue of my engine cooling fans running all the time regardless of coolant temperature. I was suspecting that the ECU was switching them on as a result of my air...

:banghead: I know there is an answer to this problem...
here is my file...63959

I have been making some changes to settings in order to sort this issue I have with the fans running all the time. I do not have air conditioning connected as yet, so I was wondering if ECU was...

Finally made some time to change my fan wiring as per the diagram Steve supplied. I am confident that it is all correct now because fans can be switched to low, high and off via the HP scanner....

Hi Steve,
Thanks for the info. I will rejig the wiring I have done and add an extra relay as per your diagram. I am currently only using 2 relays and I reckon that is where the problem is.
The ECU,...

Hello folks,
does anyone have any ideas on this one for me? I suspect I have overlooked something so any assistance would be great.
Thanks,
Dave

Does anyone know if this problem was solved??

Hey All,
I am trying to sort out the fan relay wiring on my E38 PCM. I am running 2 x electric fans and 2 relays. pin 85 (ground terminals) of relays are connected to pins 17 and 58 of the 73...

You are crossing a few suspects off the list; which is progress. You have already checked the power and ground circuits for coils; have you checked the "switching wires" from the coils to the PCM to...

I understand you said you have crank & cam signals and injector pulse; did you check these in the HP scanner or with other test gear (like a noid light & spark tester)? I would confirm that those...

HA! that looks like the dance I did when it fired up!!
Thanks and I hope this post helps others...

Dave

Changes VATS 1 & 2 to disabled and did write entire. It fired right up!!!
There are still a bunch of little jobs to tidy up on the wiring, but at least I know what I have done so far is correct....

eureka!! Thanks so much for that. I have found it now. I figured it would be something simple. I will make changes to VATS and write entire.
I'll report back with my results.
Thanks again for the...

Thanks for taking the time to reply. I have checked under the OS button in the HP editor and the window is blank (?) there is not anything to click on or change at all.
are you able to suggest how...

I am also having trouble deleting/turning off VATS in 2006 E38 PCM.
are you able to tell me where you found it/how you did it??

Thanks
Dave

I thought that may be the case with the IAT. I will fit a new sensor in the intake pipe.(Thanks!)

Its not clear to me exactly how to disable the VATS in the E38 PCM. I have browsed the forum and...

Hi Guys,
I am in the final stages of an engine conversion (2006 6.0 litre from VZ commodore SS into a 2005 Rodeo crew cab)
The loom has been modified by me, but I am not 100% certain it is correct....