KSP 1.1.3 - Minmus Emergancy Rescue. Engines firing randomly

[genericeventhandler]

TL:DR;  How can I turn engines off in an instant?

Hi

KSP 1.1.3,  I have a base landed on minmus, MKS parts connected with flexible tubes, and a fuel truck with 10 engines on it docked with KIS struts. 

I have 2 seconds after the scene has finished loading, and the rockets on the fuel truck fire at full thrust, then the other parts of the station all fire together. 

How can I save the crew?

• I've tried editing the save game file to turn all engines off and that didn't work, 
• I've tried quickly swapping vessels and killing the thrust on each one, but the base still takes off. 
• I can't EVA the Kerbals from an uncontrollable spinning station to unhook the flexitubes from the main habitat.
• TCA can't stable it, and there are not enough RCS or torque to stop the spin once it has taken off and the fuel runs out.  

If anyone has any other ideas?

What I think is happening is that the Kraken is separating the base into two parts but they are somehow still joined.  

Thanks

GE

[steuben]

The main engines or RCS thrusters?

[genericeventhandler]

Main engines,  10 on the fuel truck + 6 others on various other parts. 

[Sharpy]

Edit the save to drain all the fuel? Or edit it to set thrust limiter on all engines to zero.

[Kryxal]

I'd say to zero-thrust or offline all the engines via save-game hack.

[DD_bwest]

mechjeb has a utility that you can set a thrust limit at 0 m/s or 0%,   you could try one of those.

[genericeventhandler]

I managed to save the base, by editing the thrust limits in the save file, 

My theory was correct, the base had separated into 5 distinct ships but was still attached with KIS joints. Thanks all for the recommendations.