Car wont start..it will crank but wont turn over new ecu..got the lock smith to reprogram/ disable the immobilizer..still no start pulled codes with the lock smith. no errors/ codes came up..i asks him is it a bad computer he said no...what can it be?

 

start with the simple stuff, Spark and fuel.

 

Yep, check coils/plugs, fuel pump and MAF.

 

Make sure Ignition is powering up. Blown fuse on ignition circuit?
Fastest way to check is at the main harness at the key cylinder, there are 2 ignition wires. I forget what colors they are look it up, make sure they both have power when the key is in the ignition position.

Ignition 1 is Black/white

 

the fuel pump not working not making any type of noise when i turm the key on the on position..

 

Have you checked the fuel pump relay?

 

Yes i only know of 2
one was bad brought a new one..but fuel pump still dont make any noise when the key is turned to the on position.

 

Standard fuel pump?
if not is it hardwired?

Immobilisers on the car?

 

the ecu does not power the fuel pump until it gets a crank signal.

 

The pump should prime in the ON position.

 

I don't know about an evo 6, but on an evo 9 it will not.

 

Apologies, so Evo 9 uses crank signal to power the pump?
Same for Evo 8?

 

Yes. Sorta. The ECU checks for continuity in the sensor. I.E. if you unplug the crank sensor, it will turn over but have no fuel.

 

the ecu does not activate the fuel pump circuit until it receives a crank signal. Its this way on the 8 and 9, and I would assume the 7. If i had to guess, I would say its probably a safety feature. I did a lot of testing on this while reverse engineering the circuitry in the ecu that controls the fuel pump.

 

stock car stock fuel pump...had the lock smith come over yesterday he disable it still nothing....he said the computer and the immobilizer is communicating with each other...ecu is good...thiink its just not getting any fuel so its not going to fire up.. Im going to take it to the shop and let you guy know