[spanaz1]

Please help I have no pulse at the injectors from ecu
1.there is spark at the plugs.
2.their is pressure in the fuel line
3.checked all earthing and fuses ok
4.battery on 12volts at the injectors
what could be the problem? vehicle is Peugeot 406 petrol 2001 model

[fraserauto]

Not sure about Peugeot but some cars need cam angle sensor to time injectors , have you scanned vehicle

[Geri]

At start all injectors works simultanios. No need of signal from cam angle sensor.

[strikeforce]

Please help I have no pulse at the injectors from ecu
1.there is spark at the plugs.
2.their is pressure in the fuel line
3.checked all earthing and fuses ok
4.battery on 12volts at the injectors
what could be the problem? vehicle is Peugeot 406 petrol 2001 model

disconnect all injectors and check for the pulses individually at the pcm if none then injector drivers in pcm are fried and may need a new pcm

[fraserauto]

If you have pulse at first i would say drivers ok . Have you used scantool

[spanaz1]

I scanned the vehicle and only have P0410 secondary air injection.

for a while the car started and idle for few seconds before dying again.

[loki954]

Remove the immo or learn(sync) new key

[spanaz1]

I thought if immo is activated there will be no spark at the plugs?

[fraserauto]

Well if you checked every thing then time for new PCM

[spanaz1]

This morning I reset ecu by touching neg and postv terminals now the car is pulsing. but I think the signal is not enough because while cranking the voltage is 7.4volts at the injectors. is it enough to trigger the injectors? or the injectors are flied but also when I try the injector resistance they are 14.7 to 15.2 also when I give them direct 12v and ground they give a strong spray. another thing I tried to remove the rail and point the injectors on wind screen and crank the engine, they spray for some seconds then stop one by one? now I don't know what's going on.

one other thing, before this car came to me the engine was on fire, you can see small burns on the injectors,wiring and pipes.