No Spark

Have an '88TC that runs for a few minutes then dies. The coil has no spark at that point, but is getting power. I ran a quick code check and came up with a 14,18 and 72 (also a 28 but I don't know if that is real).
Has anyone seen this before? Could it be the Coil, Ignition Module, EEC? Suggested tests?

14 intermittent loss of PIP signal (the Hall Effect sensor inside the distributor.

18 loss of tach signal

72 manifold vacuum - you didn't open the throttle (far enough)

28 VAT signal. Is it less than 50* F where you did the test? If so don't worry about this code.

Sounds like either the TFI or the PIP. I can send you some tests to narrow it down. There are other things that can trip that code, like bad wires.

[This message has been edited by Pete D (edited 12-26-2002).]