[ludo.190]

Hi!

My 2005 ZR 160 Start and cut immediately

Immobilizer seems desable (the led is off)
I can hear the pump arm when I turn the contact

With an odb reader i have P0160 ,my MAP sensor is dead, but I could start like this since few days

I will soon receive this sensor from Rimmer but I'm afraid it does not solve my problem


thanks for your help!

 

[JOHNDQ]

Normal if start and cut out it's an immobiliser problem on the MK2 if it is that talk to this man....

https://www.technozen-electronics.co.uk/mg-rover-pektron-scu-repairs-parts/

Failing that we need a new ECU, BCU and key fob if of course it is this

 

[Man in the Car]

Starting and then cutting out again within a few seconds is often an indication that the code that the engine ECU shares with the security system has become corrupted - on July 2003 on cars it is usually memory loss in the Pektron SCU, with may have been brought on by a flat car battery , or the car being jump started.

If it is the code that is lost or corrupted, the engine ECU and SCU can be re-matched using suitable diagnostic equipment.

 

[ludo.190]

Thank you for your answer guys,

Unfortunately the car is not at home, in a few days I'll be able to go see it with my PSCAN, I hope I'll be able to start it!

 

[ludo.190]

Hi!

I went to see the sick car with my PSCAN!

In immobiliser status--> Correct EMS code received


i have try to reprogramming my fob but the car doesn't start more

 

[ludo.190]

Hello

Could you say me where in the "ambiente air temperature" sensor on a 160 MK2 please?

Mine annonces 59 degree!!

Thanks!

 

[JOHNDQ]

Its build into the MAP sensor thats on the intake manifold (4 pin multi plug)

 

[ludo.190]

hello guys
I have changed lambda sensor, sensor and crankshaft sensor
I have check the timing belt

the car starts well
she stalls
if I accelerate a few times, it does not hold, the idle is very low about 500rpm
no power


Do you think that the gas pump is involved knowing that it starts immediately?

 

[ludo.190]

Hello Mg Specialiste,

I need your opinion

As i probably have a problem with the memory of my scu, i sent my ecu to disable immobilizer on.
But I still have starting problem I think because there is always a physical link between the ecu and the SCU

Do you think I have to cut this wire? (pin 72 MEMS3)

 

[ludo.190]

i have find this:

"***8226; Immobiliser State : Shows the current state of MEMS3 immobilisation. If the value shows OK the ECU has received at least one correct security code since the ignition was switched on otherwise there has been no signal transmitted between the Immobiliser ECU and MEMS3 or the signal did not contain the correct code. If the value shows IMMOBILISED the engine will start and fire once for about 1 second and then stop as the fuel injections are inhibited. If the ignition is switched off for approx. 20 seconds this sequence will repeat. "

 

[Man in the Car]

That is basically what I meant in my earlier post - if no code is recieved by the engine ecu to disarm the immobilisation, the engine starts, and immediately cuts out.

I am not sure which wire you need to disconnect, but I have read of the need to disconnect one wire connection in conjunction with deleting the immobiliser - JohnDQ may know. If not, I am sure you will find the answer somewhere (if not by searching this forum, then have a search on some of the other Rover related forums.facebook groups).

To be honest, unless you really need to delete the immobiliser function for race/track use, it would have been simpler to get the code that the Pektron SCU and engine ECU share reprogrammed.

 

[ludo.190]

Hello Man in The car

Thank you for your time and all you bring us thanks to your experience

I have already sent the code scu to ecu with pscan without problems

My car starts and stalls but if I accelerate it remains start a little more but with a mixture of increasingly poor on the lambda probe and downing to 0.08volt, if I spray gasoline on the air filter, idle is better

So I have 2 options:
-Immobilizer: the ECU have now immobilize off, I can now start without the fobs but I must cut the link between the two because my memory SCU it probably die?
or
-Too much air or not enough fuel (the fuel presure is good,All companents are news)

 

[ludo.190]

JohnDQ or an another specialiste, If you go through here, I'm looking for how to break the link between the ecu and the scu

Thanks

 

[ludo.190]

I have find this information:

"Cut the pin 72 of the ECU. Cut the pin 23 (red and black ) and add it to Pin 2 (Black)"
(for Rover 25 NNN100743)

Can anyone confirm this for our pektron?
Does anyone have a diagram?

 

[ludo.190]

Hello,

I have try with another ECU+SCU without success

I have make a video:

https://youtu.be/urqB0zfiE8o

 

[ludo.190]

Hello,

I have try an other ECU+SCU but the trouble is still here.

I noticed after the start that the ignition advance goes from 5 ° to 30 ° ...

Do you think the VVC is blocked?