...I read the other thread you started on same subject, "silver.." ........I have a DTC 42 on son's Z-34 ...at least this one can flash the codes (92) ..and meaning it runs on default "bypass" setting for spark timing...which as I can see, is just what you need to be able to get back home, coughing and running like crap. Tested OK for spark on all six ...I am thinking of ordering a new ignition module, which is overdue at that age anyway.
...jeff....any idea of the best way to get there?..I'm thinking of pulling the radiator to have some room ...someone has a better idea? (other than dropping the subframe, please...) (for those not seeing the situation, the ignition module and coils are between center of radiator and engine block, right under the front exhaust manifold....

)