[Lucho]

thx for the help. The wiring diagram of my car is a different one (ECU 53Vnr, 53VMR and 48VGR). But I get your message. Checked the wire 1226B on continuity and resitance (both ok). same for wire 1229B. I forgot to mention that the peugeot dealer tried with another identical BSM/PSF1 to rule out my PSF1 is faulty; which doesn't necessarily mean the 2nd PSF1 is a 100% good one.

Someone suggested to feed Fuse 5 with 12v. F5 should supply pin 6 of the 53v NR with power. Is that a good idea? Just to check if I get communication with ECU on diagnostics. I'm hesitant to do this; don't want to do stupid things.

I would like to try with a 'lookalike' ECU(Delphi dcm 3.5) just to find out if there is communication between ECU, BSI and diagnostics. I'm aware that the car won't start because of no match between ign. key, BSI an ECU but maybe that way I can check if it's the ECU that's faulty. Good idea?

 

[Lucho]

Tested startermotor (again) - I put 12V on pin2 5VJN (yellow connector on PSF1/BSM)
Startermotor cranked

Then measured fuses on BSM: different measurements as before - F5, F10, F19, F20 were now 9,65V instead of 0,07V
(I forgot to mention earlier all measurements were done when MAF was disconnected)

Measurements when MAF connected : F5, F10, F19, F20 : 2,38V

How to interprete this?

BSM 28VNR (when ign on)

• pin 8 (backprobed): 11,1 V (goes to pin 11 ECU 53VNR)
• pin 9 (backprobed): 0,8 V (goes to pin 28 ECU 53VNR)

 

[Lucho]

Faulty R2 (BSM)? The Peugeot dealer/garage claimed, while the car was with him for reparation, he had tried with an identical BSM/PSF1 but still no crank or comm with ECU.

I recently asked him to let me try again with that BSM (car is home after a 2,5 months stay at the garage) but no response ...

readings pin5 28VNR (while ign. on) : 12,5V
when applying 12V to F10 nothing 'new' happened. No crank, no comm with ECU.

 

[Lucho]

I recently asked him to let me try again with that BSM (car is home after a 2,5 months stay at the garage) but no response ...

I meant by this I didn't get any response from my Peugeot mechanic/expert; even after a e-mail and a phone call.
I think it's time - whatever happens with my 807 - to move on to another mechanic in the future.

 

[Lucho]

You have already check the resistance of the CAN bus and 60 Ohms is correct. One further test you can do is measure the voltages at the OBD connector:
Measure the voltage at pin 6 to earth (pin5) it should be 2.5V or greater.
Measure the voltage at pin 14 to earth (pin5) it should be 2.5V or less.

This bas been checked earlier buth whitout a min-max function on the DVOM.
But I like checking everything double and triple and ...
Will also recheck the grounds on the ECU (a 'last' time).

Ian, I can't thank you enough for thinking with me and providing things to do/check and possible solutions !!!

 

[Lucho]

I suspect you have faulty ECU but it might be worth checking the continuity between:
Fuse box connector 28V NR pin 5 and ECU connector 53V NR pins 2 and 5.

continuity = OK

BTW how did you manage to back probe the connector they usually have seals?

I used very thin probe - gently inserting

 

[Lucho]

If I should choose to by a set 'ecu-bsi-transponderring-keys' does it have to be 100% identical = donor car identical to my car. Or are some sets intercompatible?
photo 1: my ECU

photo 2: my BSI

Would a set from a Peugeot 3008 or Citroen C5, DS4, DS5 be ok if same ECU (Delphi DCM 3.5 HW9666912580) and BSI (BSI04 - 967847748001)? Does it have to be same motorcode RHD/DW10CB?
for example: set ECU P3008 or set ECU Jumpy 2.0 or set ECU C5

My ECU will be sent to a company to test en if faulty to be repaired (if possible).

 

[Lucho]

Update. I had to search quite some time for an ECU. My peugeot dealer - where the car has been previously for over 2,5 months - wasn't very helpfull (again). Despite he had the parts I needed, at least so claimed earlier.
I asked three times, very friendly and almost begging. But none of that was of any help. So, then I called some other peugeot garages but I was not a client and they were all too busy they couldn't help me the next 2 months.

Then I searched the internet, I found a set ECU (same part number)/BSI (same)/transponder in France for 220euros. It took some time before it arrived.
I replaced the parts and motor started - hurrah - however a bit irregular. The car/motor was immobile for 6 months.
There are plenty airbubbles in de the transparant fuel-out- line; could this be caused by the long period of no cranking/firing?

This evening I will diagnose with diagbox and see what faults there are.

I want to thank everybody who helped me, thinking with me. I have learned a lot of my car and that is thanks to you guys and the forum.

 

[Lucho]

Thanks for the reply. Yesterday evening - before i read your post - I was 'playing around' with diagbox and checking the ECU possibilities. Indeed there is a screen in diagbox to code the injectors. I was going to look into that this evening after a search on the internet/forum (the do's and dont's). The only drawback - so far - with the 2nd hand ECU is the mileage: in reality our car has 114k km, the replacement ECU shows 457k km. But I am not complaining, I got the car running again.

 

[Lucho]

n

 

[Lucho]

Did you have to code the injectors into the ECU.
I am having a similar problem... Crank but no start.
Problems with the BSM and ECU interfacing.
I removed and cleaned the injectors and put them back - randomly so in different orders/positions.

Do I somehow have to code the injectors into their new positions.

Regards

Hey Christoper

My car was a 'no cranker - no starter'

I bouht a secondhand set 'ecu/bsi/bsm/key'. 'Simply' plugged them in and car started. I didn't have to code the injectors. Untill now (+10.000 km) the car is running just fine - fingers crossed.

IMHO the randomly fitted injectors is not the cause of not starting (but I could be wrong). It could hower cause power loss, irregular firing, ...

Have you tried the beep test:beep test
I might be immobiliser
Also check fuses, connections,

Video how to code injectors with diagbox: coding injectors

I'm sure you will find the solution. There is plenty of info on this forum and the internet.

Good luck.