Hello. I swaped the engine from one subaru legacy b4 '02/no spark

hi,

backfeed the circuit through the light in the ashtray with switched fused power from the fuse panel to see if its the circuit or the supply.

jm

Call a auto locksmith or have it removed to a dealer i thnk this is a immobilisor problem her the ECU is not communicating with engine and its possible it may need re-programming as the bits are not talking to one and other to put it in a easy to understand way .

Yes these cars are the same as far as parts go.
You will need to change some wiring on the automatic car for the manual swap to work without changing the wiring harness.

had miss fires with my 92 legacy gt.typical suby fault coil packs always go out in saying that check that you dont just have a foul or failed spark plug. easy fix if it is the coil i replaced mine with 2nd hand ones from the same model usualy find them at most subaru specialists wreckers etc depending on model.

you will need to find out why, is it bad spark plug wires or a vacuum leak or injector problems, start by checking the spark plugs and wire first, replace them or swap with another cylinder to see if the misfiire move to the cylinder you swaped with and if it does then you know its a wire or plug, i would start there and if it has been a while since a tune up then i would just install new spark plugs and wire set.

Try resetting the computer, disconnect the battery, Check the fuel rail and any wiring harness connectors, sometimes they do not connect all the way and need a good push.

Wired coil overs ?


Did you swap computers as well ?

take a look to the timing belt, it may be broken. hope it help

Have you checked for compression?

Water introduced through the fuel system. Drain tank and lines, refill, and add HEET.