Toyota Repair: Corolla Wont Start, toyota corolla, signal generators

Question
Hi,

We recently purchased a 1992 Toyota Corolla with about 120000 miles on it.  After the purchase, we did a tune up on the car including new spark plugs.  The car has been running solid for about 3 months.  Just recently, the weather is getting cold [we're in chicago], I'm not sure if it's coincident or not, the car has been having problems starting.  At first, it started to take twice for the engine to get going.  Then as it get's colder, it would take up to four times.  Over this past weekend, we had our lowest temperature and the car would not start at all Saturday night.  We tried the battery first but it wasn't the problem. The spark plugs were checked, fuel pump seemed to be working fine.  All oil levels were normal.We hardwired the "service circuit" and the Check Engine light flashed code "No Issue Found".  We couldn't get the car started til the next Monday, which it did take quite a few cranks.  Once it starts, it runs perfect.  What could be the problem? Could you please suggest where we should check next?  Thank you.

Answer
I suspect a problem with the distributor, it's of the IIA integrated type, the coil and igniter and the signal generators are all inide the distributor, a faulty coil will not give a failure code, remove the distributor cap and rotor and remove the coil plastic cover and inspect for any cracks or burned areas on the coil especially on the epoxy filled area and the underside of the coil, as a last resort it may be necessary to replace the entire distributor.