I put this in ChipTuning because it's tuning related.
First of all this is a new Beetle 2014 5C14N2 CPLA PDB 2.0155 kW Simos 12 ECU.
Towed in to me on Friday and was just told that it misfired/spluttered and broke down and won't start now.
No trouble codes.
![itwasntme itwasntme]()
When I tried to start it, it fires sometimes, runs for a second and sometimes sounds like its hydraulicing! Stinks of fuel.
Plugs black, checked compressions all OK, when cranking with no plugs it does seem like there is far too much fuel coming out of the cylinders.
Check for evidence if it had been mapped because I got the impression I wasn't getting the full story from the customer.
Looked in VCDS and evidence that it had been flashed and 3 times not successful, rings alarm bells to me.
Looked at log I did when it was in for service last month and notice the software version is different to what it was.
Rang customer about this and she slipped up and told me that the boyfriend took it in for a Remap and that they didn't do the remap because it broke down while they were checking the power output before they tuned it. Smells a Rat me.
![fubar fubar]()
I told the customer that they must have played about with it because the ecu shows flashing has been done and failed a few time, I told the customer to call the tuning company and ask why have they done a flash update when it was running OK and what tool have they been using.
I just would like some advise before I start playing with flashing the ecu to put back standard.
I want to have it standard and remove any old shit from what the tuning company did. Before I go any further with diagnostics.
So my question is, I have got a standard calibration file from CMD, do I flash this?
Or, do I use ODIS and flash it with the latest software or what?
Because the VW software updates, may not effect the calibration/maps of the ecu, may be wrong, this is why I'm asking before I do anything.
Any advise appreciated.
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