[Dudehog]

Probably a yes or no question but is it a second hand ECU just a case of plug and play into my car?

 

[badgx]

I did a Merc m113 c43 engine swap to e55 lump both ecu and egc were plug and play, i couldn't believe how easy that was. The engine wiring harness and plugs were all identical.

If its just the engine ecu I reckon the 5.7 and 6.1 should swap, it may need to be reflashed, 5.7 has an mds feature.

 

[JGarten]

Pretty sure most cars require the VIN programmed into the ECU. Many eBay sellers do it for free. If the replacement ECU's VIN does not match the SKIM module (or whenever our cars have that disables the ignition) then no start!

 

[turbo_terrific]

Pretty sure most cars require the VIN programmed into the ECU. Many eBay sellers do it for free. If the replacement ECU's VIN does not match the SKIM module (or whenever our cars have that disables the ignition) then no start!

Yup, SKIM and PCM need to be told to play nice.

I've got a WiTech sub and a fair few SRT8's ( and spare PCM's) if anyone wants a pictoral guide.

My unlocked 2015 PCM was VIN coded by Diablosport prior to purchase to avoid this.

Some of the aftermarket devices can do module reprogramming.

Beware if you ever replace the SKIM though ( the halo ring around the ignition barrel ) - if THAT isn't done properly ( one of mine wasn't - not by me ) and coded in, if you try to code keys in future you might have an issue.

Richard