Bewildered

ESP light and engine power cut

60 posts in this topic

15 hours ago, Sydney said:

 

what about an aftermarket cruise control? 

 

Hi Sydney.

No cruise control is fitted ☹️
 

11 hours ago, BWM said:

Also if the sam has been replaced it my have had this issue before check the plugs that connect to the Sam for corrosion

Hi BWM

From the condition of the parts I am taking off (and the ease at which they are coming out... no seized bolts etc.) I’m convinced it is not the first time the car has been put through this trauma. Unfortunately the previous owner will not take my calls.... maybe he thinks I want to complain... I don’t, I just want to hear some car history. I’ve left messages but to no avail.

The written history that came with the car was the usual service stuff.... tyres, battery, oil, plugs, filters etc. etc.

And it drove perfectly for 3 months - it is so frustrating  🤯

The plugs going in to the SAM are clean and corrosion free.

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Have you run her yet after the latest fix?
What about a pushed up pin in one of the connectors?  Just another ball of spit...lol.

OR female side of it? resulting in a not tight connection of pins to plug situation, but that would lead to some sort of sparking which would show up and from what I can see of SAM plugs it's perfect in that regard...?

I the second from last pic I still say you have a few connections that in that pic look nasty, but not in the other pics, so hopefully you are done soldering.

Now slap it back together and take it for a victory spin...?

 

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My plan is to record

Transmission temp

Calculated cat temp

Transmission fuel shut off yes/no

 

I have space for another line of graphical data - do you have any suggestions?

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Eng temp 8C start 56C at /!\ point

Trans temp 14C (13C outside temp)

Cat temp around 300C

Trans fuel shut off working correctly


Same OBD codes:

C1340 “ECU cannot execute torque request”

53301 “unknown”

P2056 “Actual position Of rotation angle sensor; plausibility”

 

I guess yaw sensor next - when I manage to get home !

Edited by Bewildered
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I'd also now go after the ECU, same drill.....beware of loaded capacitors on this one, speaking from experience!  One flash and that's it...sorry play again.

If I recall correctly the ECU had water corrosion inside and green on pins that's why I fried mine trying to clean pins.

 

I do n't know anything about the yaw sensor yet, thankfully.....

 

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know anyone with different scan tool?....sometimes different tools use different wordings for codes and can steer you in a better direction

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I’ve fitted a new ECU - reprogrammed and all sorted (I hope!).

I have now spent over an hour driving without even a hiccup.

 

Thank you all so much for your help :-)

 

I will be messing with the old ECU to see if it was a reteach issue or corrosion - or just “one-of-those-things”.

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