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No synchronize

PostPosted:Thu Oct 15, 2020 6:17 pm
by Tankki123
Hello ! Im running speeduino on my Bmw m50 turbo (stock vr sensors).
Running it on sequential fine till today, full throttle pull with 1st and 2nd gear till rev limiter, then engine turned off and didnt start.
Doesnt sync on cranking...
On semi sequential all works again so seems like it doesnt get signal from camshaft position sensor.
I check all the wires and they are OK, I also tried with another sensor and the problem still same.
What could cause this ?
I dont have a log from this pull, and there is no any changes in msq from other days while it was working.
Thanks guys !

Re: No synchronize

PostPosted:Thu Oct 15, 2020 9:24 pm
by theonewithin
If you are sure sensor and wiring is good all the way to ECU, the input on the Arduino may have failed.

Replacement will be needed

Re: No synchronize

PostPosted:Thu Oct 15, 2020 9:28 pm
by dazq
Try a composite tooth log to see if the MCU can see the cam input

Re: No synchronize

PostPosted:Fri Oct 16, 2020 8:26 am
by Tankki123
theonewithin wrote:If you are sure sensor and wiring is good all the way to ECU, the input on the Arduino may have failed.

Replacement will be needed
I replaced the Arduino with a new one, but problem is still the same :cry:

Re: No synchronize

PostPosted:Fri Oct 16, 2020 12:09 pm
by theonewithin
Tankki123 wrote:
Fri Oct 16, 2020 8:26 am
theonewithin wrote:If you are sure sensor and wiring is good all the way to ECU, the input on the Arduino may have failed.

Replacement will be needed
I replaced the Arduino with a new one, but problem is still the same :cry:
Then either your wiring is no good, the sensor is no good or the Speeduino board has a fault.

Easy to check each of those.

Re: No synchronize

PostPosted:Mon Oct 19, 2020 9:03 pm
by NickZ
Maybe your VR conditioner has failed on one channel (Cam input)

Re: No synchronize

PostPosted:Tue Nov 10, 2020 4:02 pm
by Tankki123
Yep, i replaced the vr conditioner and everything works now.
I tought the same at beginning, thanks to all!