The Engine ECU and the BeCM can lose sync with each other due to the low battery, but also they have been known to just throw a hissy fit and lose sync regardless of any external factors....

The Hawkeye can resync - but I can't remember if it will only do the Diesel or one or t'other of the Petrol ECMs but I don't remember which it is!
 
sky gipsy said:
As far as I understand the problem I had (and many other P38 problems), then yes, clearing faults logged will solve problems.

The fault was loss of voltage. You have resolved that problem, but the fualt has been logged & sync has been lost between the GEMs & BCEM. Clearing the fault & re-sync'ing should sort you out.
I think I am sort of right, but those with a better understanding may be able to put it a bit clearer,
Good luck & keep us in the picture.
S.G.
Click to expand...

Saint.V8 said:
The Engine ECU and the BeCM can lose sync with each other due to the low battery, but also they have been known to just throw a hissy fit and lose sync regardless of any external factors....

The Hawkeye can resync - but I can't remember if it will only do the Diesel or one or t'other of the Petrol ECMs but I don't remember which it is!
Click to expand...

Thank you :)
 
Saint.V8 said:
The Engine ECU and the BeCM can lose sync with each other due to the low battery, but also they have been known to just throw a hissy fit and lose sync regardless of any external factors....

The Hawkeye can resync - but I can't remember if it will only do the Diesel or one or t'other of the Petrol ECMs but I don't remember which it is!
Click to expand...
According to macapina, Hawkeye will not re-sync the diesel even with the latest update, not even mentioned in the menu's.
I'm sure I read that it was one of the shortcomings of Hawkeye.
 
Datatek said:
According to macapina, Hawkeye will not re-sync the diesel even with the latest update, not even mentioned in the menu's.
I'm sure I read that it was one of the shortcomings of Hawkeye.
Click to expand...

Yep just read that post too...

Read the Hawkeye manual available from the Bearmach website, there is reference to setting the ECM code, but I think that is only when the BeCM is new and unlocked, once it is set to robust, the Hawkeye cant resync the odes.
 
Hi Everybody
Can anyone who has a sync-mate for a p38a 4.6 HSE AUTO help out The R/R is near to the M4O (Banbury)
Regards Brian
 
Hi Just an update
I have had the BECM checked and have been told that it is OK, and in the persons opinion that checked it the problem is with the MULTI PLUG CONNECTOR that is behind the trim panel adjacent to the bonnet release lever, I have had a look and there does not seem to be any corrosion to speak of

Any ideas Brian
 
muddylane said:
Hi Just an update
I have had the BECM checked and have been told that it is OK, and in the persons opinion that checked it the problem is with the MULTI PLUG CONNECTOR that is behind the trim panel adjacent to the bonnet release lever, I have had a look and there does not seem to be any corrosion to speak of

Any ideas Brian
Click to expand...
Who checked the BECM? Have you tried a re-sync??
 
the BeCM will look fine when plugged into diagnostics and will not report any issues....

As Datatek says above have you tried a re-sync??
 
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