Car misfires/stalling on fast turns

[reelizmpro]

Recently, my 325iC turbo running Ely's PnP MS 1 v3.0 sputters and sometimes stalls + backfire on long left or right turns and decent sized bumps. Afterwards, sometimes the car will sputter around 3k RPM's and the tach will fluctuate a bit. The car has been dyno tuned and ran great for years but started doing this recently. Right away I suspect a connection somewhere but cannot replicate the symptom just by wiggling the wiring. From the datalog, I see no resets when the problem occurs only the RPM's momentarily dropping while TPS is constant. Car did not stall this time. Fuel pump is Walbro and connections are solid with no issues. Also went back to the stock coil setup but still had the same issues. Everything inside the MS unit looks normal.

Can someone look at my datalog and see if I'm missing something?

[JTDay]

You didn't post the log

[reelizmpro]

Well the log does not show any reset when the hiccup occurred just a drop in RPM's before they go back up to where they are supposed to be. All other values appear normal. I'm not sure how I'd go about posting the data. It's too much to simply copy and paste here but here's the hiccup...

RPM/100 MAP TP
r100

22 74 21
20 76 21
18 78 21
17 82 21
15 84 21
14 86 21
12 89 21
11 91 21
10 92 21
9 91 21
9 90 21
10 89 21
12 86 21
11 84 21
11 84 21
12 85 21
12 84 21
12 84 21
13 83 21
13 84 21
13 82 21
14 82 21
14 81 21


Anyway, I cleaned up the fuel pump connector and the notorious injector harness connector under the manifold. Both looked clean but I cleaned them up anyway to make sure. I also noticed the CPS wiring holder was broken so the wiring was a little loose. I zip tied it down to keep it from getting chewed up by the alternator belt. I drove the car for a few hours today trying to replicate the problem and couldn't. It was solid the entire time. Going to have to drive the car harder to see what happens.