It's not a severe problem but I don't know why it's happening. When my car has been sitting for more then 10 hrs (say overnight) and I go to start in morning, it hesitates big time (sounds like it's very slowly igniting - rpms really low and i have to hold key in start position for at least 3+ secs).

On a warm start though, it starts up perfectly fine.

Any ideas?

 

I'm experiancing a similar problem so I'll give you a *bump*

My engine is a D15B1 w/ mpfi swap

I'm assuming by your name that yours is a B16A ?

 

Im having the same problem!! errr!! I have a b16a......


....help.......please.....

 

Have you tried priming the pump before starting? Hold the key in the on position for two seconds, and then try to start. See if that helps.

 

Cold starts require more fuel and a higher idle. Inspect the fast idle valve if you've got one. That would take care of the higher idle. The TW sensor and IAT sensors should tell the ECU the engine is cold, so I would check those out next.