1.8 turbo wont start , no spark on coils neither fuel pumps works help please

[kninio]

Hi to all ,

it had broken alternator belt , and next day after changing it , it cranks but fuel pump doesnt works neither the coils getting electric , so no spark and no fuel to the injectors any idea why is this? i havent vag com to scan it at the moment could it be some sensor that disable both of those items? any help would be appreciated.

[Val]

What have you checked by now? Fuses?

[kninio]

fuses all ok relay all ok , i tried to start the fuel pump directly , but didnt start up i took of a coil and spark plug and there is no sparking , so two things is not working fuel pump and ignition coil system , what could disable both of those? , my stupid mind make me forget the vag com at home while the car is in the village so i couldnt scan it

[sam80quattro]

no power to ecu? pump should prime off the key.

[kninio]

no power to ecu? pump should prime off the key.

pump is not working for few seconds netheir while cranking , no ignition spark either, how cani check power to ecu?

[ManiacuV6]

I put my money on a Immobiliser problem. It can be repaired. OR you can get another IMMO box with a pair transpoder and adapt it to the ECU.

[A1QSHIP]

May just need to reset the IMMO. Try locking & then unlocking at the door or with the remote & then immediately try to start.
Good Luck, Chris

[Monkeymagic]

what car are you working on.

[kninio]

audi tt 2000 , without imobiliser its a us one they didnt have imobiliser untill 2003 , but the issue its not starting and shuting like when the immo block it , it doesnt start at all just crank with no pump or sparks

[Val]

Do you have +12v on coils and injectors while cranking?

Please, delete posts mentioning immobiliser. Its not how it works.

[sam80quattro]

when immo gives you problems on 1.8t they still start buy then cut out.. get a multi meter and test the power wire to the ecu. you'll need a pinout diagram ideally so you know what's what but there easy to find online

[sam80quattro]

i recently fixed a mates golf that had a cracked scuttle panel.. ecu was full of water. worth checking

[kninio]

it doesnt start and shut at all , just crank with no 12v+ to pump neither to coils , i will take the vag com and go check it and update you with the results , maybe ecu dead as u said possible water got on it

[Val]

delete this.

[kninio]

Which one engine code your car has?

its ATC , equal to AUQ euro one


thanks for the BAM data its usefull for my s3