i just swapped in a 2003 ej25 into my 99 ej22 car. It won't start.

 

i swapped the intake manifold off my old engine and everything plugged in perfectly.

 

the car sputters and started only a couple of time but it would only stay running if i gave it lots of throttle and it would backfire through the intake enough to blow the clasps off the toque box.

 

it was also blowing black soot out the tailpipe and it seems to have fowled a set of plugs. i pulled them out after the short run and it was covered in black soot.

 

i changed the plugs, coil, and wires with no results.

 

The motor is new. the car it was in fell off the truck back in 2003 and it was pulled and put in storage since then. It did have storage oil in the cylinders so i'm guessing that's the reason for the soot and plugs. but backfiring? missing?

it feels like an ignition issue. but......?

 

any help would be greatly appreciated!

would the ecu be different?sometime ago i remember having to do like 30 or so key starts to reset everything...................cheers, brian

he's got another thread on this in the New Gen forum, post there.

 

MODS - delete this duplicate post?

thanks! sorry for the cross posting. i am pretty desperate right now.

thanks! sorry for the cross posting. i am pretty desperate right now.

you won't be after i solved your problem for you in the other thread, go check it out!