Hello the collective.

 

I recently had to retire my bmm engined 4x4 2008 Octavia tdi due to frequent injector error codes.

I was looking at the vcds info from several months ago and noticed that the voltage was a bit higher than I thought it probably should be at the injectors (14.52v).

I have since put a different battery on the car and started it up once and got it up to temp but can't drive it in anger much as it's not registered. The fault did not return.

Could the slightly higher voltage be enough to trigger a fault like this ? 

I have pasted the vcds info below.

 

Thanks in advance 😊

 

 

4 Faults Found:
004705 - PD Unit Injector: Cylinder 1 (N240) 
               P1261 - 000 - Regulation Range Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00110000
                    Fault Priority: 1
                    Fault Frequency: 9
                    Reset counter: 255
                    Mileage: 60551 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 08:12:14

             Freeze Frame:
                    RPM: 1806 /min
                    Speed: 59.0 km/h
                    Load: 38.8 %
                    Voltage: 14.52 V
                    Inj. Quantity: 0.19 mg/str
                    Temperature: 28.8�C
                    (no units): 0.0

004711 - PD Unit Injector: Cylinder 3 (N242) 
               P1267 - 000 - Regulation Range Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00110000
                    Fault Priority: 1
                    Fault Frequency: 6
                    Reset counter: 255
                    Mileage: 60551 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 08:12:14

             Freeze Frame:
                    RPM: 1806 /min
                    Speed: 59.0 km/h
                    Load: 38.8 %
                    Voltage: 14.52 V
                    Inj. Quantity: 0.09 mg/str
                    Temperature: 28.8�C
                    (no units): 0.0

004720 - PD Unit Injector: Cylinder 4 (N243) 
               P1270 - 000 - Regulation Range Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00110000
                    Fault Priority: 1
                    Fault Frequency: 4
                    Reset counter: 255
                    Mileage: 60551 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 08:12:14

             Freeze Frame:
                    RPM: 1785 /min
                    Speed: 59.0 km/h
                    Load: 38.8 %
                    Voltage: 14.44 V
                    Inj. Quantity: 0.68 mg/str
                    Temperature: 28.8�C
                    (no units): 0.0

004708 - PD Unit Injector: Cylinder 2 (N241) 
               P1264 - 000 - Regulation Range Exceeded - Intermittent
             Freeze Frame:
                    Fault Status: 00110000
                    Fault Priority: 1
                    Fault Frequency: 15
                    Reset counter: 255
                    Mileage: 60551 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 08:12:20

             Freeze Frame:
                    RPM: 1638 /min
                    Speed: 54.0 km/h
                    Load: 40.0 %
                    Voltage: 14.52 V
                    Inj. Quantity: -1.06 mg/str
                    Temperature: 29.7�C
                    (no units): 0.0

If that was the case though it wouldn't be the fault of the battery, more of a fault with the alternator/charging circuit so you would get the same problem regardless of battery.

On 15/09/2019 at 07:56, SuperbTWM said:

If that was the case though it wouldn't be the fault of the battery, more of a fault with the alternator/charging circuit so you would get the same problem regardless of battery.

 Yes, i agree . Thanks . 

 

Having read more and more about the BMM engine , i can see its a bit troublesome and parts are pretty pricey (re injectors etc)

I have a complete BKD engine (16v 2007 VW Golf front cut) with,  ecu , engine wiring and interior wiring etc . I'm considering converting from BMM to the BKD. Yes i know its a lot of work (theres a lot about the BMM i hate too) , but i do cherish my 4x4 wagon and plan to keep it for many more years so to me an engine swap is viable at little cost other than my own time and probably getting the immobiliser in the ecu off so i can keep the existing display etc.
Sooooo ! I'm looking for a wiring diagram for both a 2008 BMM skoda Octavia and an 2007 BKD VW Golf , i know the engine harness will swap right over but there is one major difference in the ecu too interior loom (its the vacuum module on bulkhead) and i'm hoping the difference is confined to the engine compartment and runs just to the ecu and can be spliced in or repinned so i dont have to pull the dash out :P 

I might have to make a new post re the wiring diagrams, but if you have any pointers on where to look that would be great.

Thanks Nic

Only thing that I can add is that I have a BKC engined car and bought a remapped 105hp to allegedly 145hp ECU from an Ebay seller, in order for it to be a plug n play straight swap the immobiliser function was disabled, it was cheap, a little over £100 delivered so that might kill 2 birds with one stone on your conversion.

 

Is the BKC really 16 valves on a single camshaft? Cant see how they would have room for all that and the PD cams.

 

You can tell I have never removed the rocker cover.

14 minutes ago, J.R. said:

Only thing that I can add is that I have a BKC engined car and bought a remapped 105hp to allegedly 145hp ECU from an Ebay seller, in order for it to be a plug n play straight swap the immobiliser function was disabled, it was cheap, a little over £100 delivered so that might kill 2 birds with one stone on your conversion.

 

Is the BKC really 16 valves on a single camshaft? Cant see how they would have room for all that and the PD cams.

 

You can tell I have never removed the rocker cover.

 I have ordered the correct ECU for the BKD , going up from 140bhp too 175bhp as well as immobiliser off so should be able to use the skoda display  https://www.ebay.com.au/itm/VW-GOLF-5-2-0-TDI-BKD-140-TUNED-ECU-175HP-REMAP-IMMO-OFF-PLUG-PLAY-03G906021KK/333326483812

 

The BKD is 16v TDi and the BMM is 8v TDi, the head is def much wider, plus has the 2 cam pulleys . 

I just posted looking for wiring diagrams for both BMM and BKD, but there is a BKD photo in the golf front cut (now removed and gearbox off as of today) 

 

I got the letters confused, mine is a BKC.

 

Good luck with the conversion!

1 minute ago, J.R. said:

I got the letters confused, mine is a BKC.

 

Good luck with the conversion!

Thanks and no worries , i pretty much made my mind up as soon as i'd posted this original post and realised i'd be much happier with a BKD than the BMM 😛  (no DPF too !)

8 hours ago, J.R. said:

I got the letters confused, mine is a BKC.

 

Good luck with the conversion!

 

The BKC was the last of the bullet-proof 1.9s

 

The BKD is a 2.0, I’m sure these had a reputation for throwing rods occasionally or was it the BXE? I would have to google

 

And if I’m not mistaken these had the balance shaft issues with the oil pump but you would have to check but I think it was that era. 

 

Basically to sum it up, every diesel after the last of the 1.9 BKC’s were a load of rubbish IMO until you got to common rail. The 2.0 PDs (170)? Had injector recalls also. 

Edited 16 September, 20196 yr by SuperbTWM

30 minutes ago, SuperbTWM said:

 

The BKC was the last of the bullet-proof 1.9s

 

The BKD is a 2.0, I’m sure these had a reputation for throwing rods occasionally or was it the BXE? I would have to google

 

And if I’m not mistaken these had the balance shaft issues with the oil pump but you would have to check but I think it was that era. 

 

Basically to sum it up, every diesel after the last of the 1.9 BKC’s were a load of rubbish IMO until you got to common rail. The 2.0 PDs (170)? Had injector recalls also. 

There are no balance shaft oil pump drives in the Octavia range (These were in the mk1 Superb and Passats).

 

It was only the BMN engines in the VRS that had the injector recall.

 

It was the last of the 1.9 PD engines that had a tendency to throw con rods.

Edited 16 September, 20196 yr by Anddenton