I had new injectors installed on my1999 Dodge caravan with the 3.0 V6 , ever since then, it will start fine cold and fast idle, it will run smooth and drive fine, but when I shut it off and go to restart after sitting for a while, still warm, it takes several seconds of cranking to catch and run, along with a puff of exhaust, a little light blue and black. After that it runs fine.. it never did that before the re and re. any thoughts?
Thanks
John