Engine ignition missing upon cold start
 

Over the last few weeks I have noticed that when I start up the FR-S in the morning the ignition tends to miss occasionally while at "cold fast idle". This seems to disappear as soon as I drive a short distance. The missing ONLY occurs when the engine is cold and is not severe or very frequent. Just an occasional hiccup.

Even though I live in Texas, it can get cool here; about 30-50 degrees F is a typical range for January and February.

Has anyone else encountered this issue? What is the likely cause?

Thanks. :D

Are you on E85 by any chance?

I had a similiar issue...

http://www.ft86club.com/forums/showt...t=64575&page=2

Though right now I'm getting my engine torn down :lol:

No. Chevron Supreme 93 octane.

Thanks for the link! I tried waiting a few seconds before turning the key to start and the hiccups disappeared! The fuel pump needs a moment to build up pressure, I guess.