Surging, fueling PW dropping out

[lotus23C]

Hi
Can anyone please have a bit of a look at my log.
Engine runs well generally, around 1500 RPM the fuel PW drops to zero and then recovers so engine surges. It does not happen at any other rpm
All other sensors are still reading so not a reset
No lost sync counts on the log
I have just replaced the MS2 daughter board and loaded new firmware. The old daughter board with older firmware did do something similar, but not often and at a different RPM.
There is a bit of noise on the sensor traces and I wonder if it is triggering the over run fuel cut, however for some reason I cant access this menu on my tablet (I can click on it as many times as I like and not window comes up). It used to work before the firmware upgrade.

2018-01-12_11.45.39.msl

(264.16 KiB) Downloaded 31 times

20v CurrentTune.msq

(119.01 KiB) Downloaded 20 times

Engine Audi 1.8T MS2extra, sequential injection & COPS.
Thanks
Patrick

[turbo conversion]

Over run fuel cut is the culprit, try resetting a couple of things.

Try setting map lower than to 20 kpa and tps lower than .5.

David

[lotus23C]

Thanks David, what do you think of the noise on my CLT, TPS and MAT sensors? Is it excessive?
thanks

[turbo conversion]

Thanks David, what do you think of the noise on my CLT, TPS and MAT sensors? Is it excessive?
thanks

Sensors are noisy, I would start a new thread on that subject.

David