S52 swap won't start!?

[Supadave]

I checked my wiring multiple times, I'm pretty sure that's not were the problem is. Today I'm going to try another ecu and see if that helps.

Is there somthing else I should be doing?

[328ijunkie]

check your wiring.

[SwiftE30]

I know it sounds dumb, but I had no fuel and spark, turns out i forgot to hook up the main power sorce cable from harness..

i did this exact same thing too! Spent hours and hours searching on here trying to figure out my problem, checking and rechecking things. My main power cable to the harness was covered in a black wire cover so i thought it was ground.

is your CEL on when your ignition is in the ON position If not, your ECU is not getting power. if your confident in your wiring just start checking power from the battery throughout the harness and go till you find your problem.

[Supadave]

Ok guys found the problem, I put the chip in upside down, flip it and it started!

[Den_k321]

lol, always something stupid!!
nice man!!

[SpeedRacer85]

Its alive!!!!

[LJ851]

Where's the videos, Dave?

[SwiftE30]

Ok guys found the problem, I put the chip in upside down, flip it and it started!

haha glad its something simple. Nice work.

[ian e30 318is]

How is the C101 wired. Im betting there is your problem.

This was my problem...one of the pins was in the wrong location. Starter pin if I recall correctly. Changed it and fired up fine. Glad it fired!

[DREWHALL]

The main relay on mine took a poop, just another thing to keep in mind for everyone. It's the white relay on the engine harness.

[dnick]

congrats!! waiting for videos now :)

[Supadave]

Videos coming soon, I need a new clutch lol

[SwiftE30]

Videos coming soon, I need a new clutch lol

what are you going to go with?

[Supadave]

Bad news guys, I just put in my new clutch and the dam thing want turn over?? maybe starter went out? I check all the wires on the starter and there still hooked up, it started fine before I drop the transmission.

Might skip work to figure this out ahhhhhh!

[SwiftE30]

Bad news guys, I just put in my new clutch and the dam thing want turn over?? maybe starter went out? I check all the wires on the starter and there still hooked up, it started fine before I drop the transmission.

Might skip work to figure this out ahhhhhh!

WHat is it doing? Not doing anything/just making a little clicking sound when you turn your key/ or trying to turn over but wont fire up?

Did you make sure you got the gears lined up when you put it back in?