HVAC stuff, check it thoroughly, those cars had evap issues though many have been replaced. That system in general is sort of a pita.

I have a 94 sedan and I suspect the rest of the car will fall apart around the motor. I'd be mighty concerned why that front bumper was replaced(with the wrong one).

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One more Radar Lover gone...
1982 VW Caddy diesel 406K 1.9L AAZ
1994 E320 195K