Engine change error

[USDMFTW]

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Lua Error:
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tolua++ dbcall failed!: [string "--client\functional\EngineCombustion_Heads.lu..."]:201: attempt to index a nil value

You can CTRL+C on this to report it.
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OK
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This came up after swapping to a v8 previously made from an inline 6 that would not fit into the crown vic style body.

[BlastersPewPew]

I have had this as well, was super annoying since it does not stop and I ended up restarting the game, seemed to "fix" it after 2 restarts.