cold starts

When it doesn't start, are you getting spark to the cylinders? Are there any fault codes stored?

check the connection plug from the distributor. The dist. sends a signal (hall effect) to the relay. without the signal, you won't start. The temperature affects the old plug. Contraction and expansion. I found my problem by wiggling the connector. Its should be in front of the vehical just a few inchhes out of the distributor.