hi all some wiring advice needed i have a mk5 w reg fiesta which had a 1.3 endura engine fitted and now has a 2.0 zetec silvertop engine fitted but the loom plugs are diffrent can any one help me as i am not sure what to do. also the engine bay loom splits from the interiar loom can i use the engine bay loom from a 1.6 16v w reg escort and just change the wires at the ecu end to run a mondeo deep ecu any help will be grate thanks

ideally you need a engine loom from a fiesta si, 16v(that will plug straight onto the engine). then a mondeo ecu, deep/desk/dewy, then wire that into your current loom.

However, by getting rid of your current ecu, it will bugger up the pats system, as its incorporated in the your current ecu. so you will have to get around that!

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Yeah i'd say get rid of your pats system and get an aftermarket alarm and immobiliser, i think that's the only way.
Unless you can find a way of running your pats active rather than passive :S

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but how do i get around the pats

Have you tried ZSOC? they might be able to help

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