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The fourth generation Volkswagen Jetta, also called the MK4 or the Bora, is Volkswagen's family sedan.

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Do I need a special scan tool after replacing my ECU/ECM

I was told after replacing the ECU you need to take it to the dealer to reprogram the new one. is this true?

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The simple answer is yes, an ECU on this vehicle is not plug and play and will need both a certain level of Scanner ( Out of most peoples budgets) and program. That being said how did you determine the ECU / ECM was bad. What steps were taken to prove the fault that led you to replace the ECU/ECM if you did not take it to the dealership.

You might locate and independent repair shop that has the required tools and knowledge to do the programming for a better price then the dealer.

Just asking was this a shot in the dark kinda thing?

Cheers,

Monte

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Jer will be eternally grateful.
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