Last year while driving the car it died an would not start, figured i spund a bearing because oil pressure was at 0, now motors all built, go to turn it over im getting no spark.>


Checked-
Fuses
Relays
Pin outs on harness
Swaped a ecu to see if mine went


Tested the crank sensor with a meter, its not getting any power.


I got nothing, im lost on what to do next.

 

Anyone?

 

As always seems to come up: Check the ground on the rear of the driver-side cylinder head. You would not believe how many times this gets missed. Other than that, get a wiring schematic, and start tracing every wire and verifying voltage (where applicable) and continuity. There's really not going to be any "short cuts" on this....you need to continue working the normal process of elimination.

 

I would start with the wires running from the pcm to the crank sensor. They are easily burned by headers/exhaust.

 

Checked them no breaks or cuts, its geting grounded just no signal or 12v

Back of the head grounds are on tight

 

Looking at the bcm, 1 of the 5 relays wasnt clicking on.

Looked close and saw a crack on the 'T' . Fixed that and still nothing.

I think my bcm is shot?

 

What ignition control, controls the cam sensor, crank sensor an injector pulse?

 

does it turn over with the key?? or just nothing?? have you tried bypassing the ignition and jumping the starter??? basically hot wiring the car? thatll tell you if the BCM is shot

 

Do you get a check engine light with the key on? Plug a scanner in and see if you can communicate with the pcm. On some cars the fuel pump fuse also powered the pcm.

Find someone who can actually diagnose and stop throwing money at it.

 

No codes are being thrown.

If i hot wire it, it wont die in 3-5 seconds? Cuz this is a new engine that needs the ring set

Is there any other way to check if my bcm is shot?

 

Any rpm on the scanner when cranking?

 

No signal,

Every sensor is getting power but injectors, cam, crank.

I looked at my wire harness. Its near my charge pipe but i dont think any wires melted.

Someone told me to track back the wires for. Ign 1 2 or 3. Because one of those control the cam crank n injectors

 

Now we're getting somewhere.

 

Cant i do a continuity test to the wires from the fuse block to the connectors on the passenger fender?

 

Yes. If the circuits you are testing run through there.

 

Also i needa check if my bcm is fixed after i soldered it, if that one relay on it isnt working could that be my problem?

 

Im about to give up or drop it at a shop

 

So i was looking at a fusible link an its onsulation is blistered.

Think i found my problem