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So I just bought a 1996 Passat TDI sedan. There are spotty maintenance records and the gentleman who owned it has passed away. His kids do not know anymore than I do on the history. I'm working through the car to see what needs attention and to generally be aware of what I have. That brings up the ECU.

This car has a silver case ecu #028 906 021 GQ. Has this car had the smoke update? Is it safe to say the 5th injector is effectively disabled from this car? I popped open the ecu and it appears the two chips are stock. Bosch hhh683 chips.

Also, what nozzles should the car have?

Thanks,
Andy
 

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GQ is the smoke recalled one, esp since not in plastic case.

Nozzles are probably stock, check out the mk3 new buying guide for common problems, maintenance!
 
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