If his car is anything like most Z's i have owned, the PTU subharness and wiring is probably corroded. It wouldnt be unbelievable if his coil pack connectors and/or wires are also corroded as well. Audi coil packs are cheap and easy to find, and solve both issues with nearly the same amount of wire work...
------------------------------------------------------------------ 1992 300ZX NA 5 Sp (Dead) 1990 300ZX NA Auto 2+2 (Dead) 1990 300ZX TT 5 Sp (Stock Turbos) (Est. 400 HP) 1990 300ZX TT 5 Sp (GT600R) (Est. 600 HP) 2004 G35 Sport 6MT (DD) 2008 Honda Civic (DD) 2014 Nissan Murano (DD) 1969 Chevy C10 (Toy) 1969 Chevelle (Toy) |