Audi A4 B6 2001 2.0 ALT is not starting

[cosmynnec]

Hello,

I have an 2001 Audi A4 2.0 ALT. The car doesn’t start.
When i turn the ignition on the fuel pump relay doesn’t switch. If i turn the ignition all the way the car cranks.
I checked the wiring from the ecu to the fuel pump relay and everything is ok.
If i bypass the relay the fuel pump starts but the engine doesn’t.
I even changed the ecu with another one which had immo off. Same problem.

Anyone has any ideas ? Thanks

[tothzsolt]

send eeprom for ecu and number ecu

immo off

[cosmynnec]

I already did immo off with the second ecu . The same problem .

Does anyone know if the fuel pump relay should switch when you turn the ignition on?

I forgot to mention that if i do output tests with vcds the relay works.

[tenzen]

If output test with vcds is working,check engine speed sensor .

[Milicija]

I already did immo off with the second ecu . The same problem .

Does anyone know if the fuel pump relay should switch when you turn the ignition on?

I forgot to mention that if i do output tests with vcds the relay works.

The relay should turn on for second or two and would turn off, then when cranking the engine it should energize again.