Mpi Not Switch To Closed Loop
Best Answer Ruckus , 07 May 2018 - 02:48 PM
Yes I’ve been testing everything today.
And I have a result, it was the ECU and the old CAM sensor.
I had a tatty ECU from somewhere which I dropped in today and managed to recode the immobiliser and bingo Cam sensor sync and runs smooth.
So it was 3 things. Lambda and Cam sensor and the ECU.
I tested the resistance on the old cam sensor and it was nothing. So maybe this damaged the ECU in some way?
I don’t know but it’s running smoothly now with all sensors reporting as expected.
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#31
Posted 06 May 2018 - 06:24 PM
#32
Posted 06 May 2018 - 08:20 PM
Have you tried watching the Cam Sensor Sync on your ACR, whilst someone wiggles the cam sensor wire? Might be failing wiring. As you say, it gets pretty hot back there.
Yes I have, nothing happens.
It would be odd if it was the wiring, it’s a brand new rover loom.
#33
Posted 06 May 2018 - 08:54 PM
How about wiggling the main connectors into the ECU? Or at least the Black/Blue and Red/Yellow wires.
Bit of corrosion on the ECU pins, dodgy crimp, bit of plastic swarf in the main connector?
#34
Posted 06 May 2018 - 09:46 PM
It’s now the only thing that’s not been replaced!
#35
Posted 07 May 2018 - 10:48 AM
Also check the earth point ECU side and Removed the expansion tank and check the other earth point.
Still showing invalid on the cam sync..
#36
Posted 07 May 2018 - 01:00 PM
#37
Posted 07 May 2018 - 02:48 PM Best Answer
And I have a result, it was the ECU and the old CAM sensor.
I had a tatty ECU from somewhere which I dropped in today and managed to recode the immobiliser and bingo Cam sensor sync and runs smooth.
So it was 3 things. Lambda and Cam sensor and the ECU.
I tested the resistance on the old cam sensor and it was nothing. So maybe this damaged the ECU in some way?
I don’t know but it’s running smoothly now with all sensors reporting as expected.
#38
Posted 07 May 2018 - 05:47 PM
Happy days though.
#39
Posted 07 May 2018 - 10:01 PM
But if I drop in the original in the cam errors, back to the other one all is well.
Swapped them a few time today.
#40
Posted 08 May 2018 - 07:16 AM
Merv
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