i chased a cold and warm start problem for awhile.... if all else is in order my bet and my fix is fuel injectors.i had changed 2 sets, both form junk yards to no avail.i got a set a 740 turbo injectors from my brother and they work great, it does run slighty rich so i will at some point send my original injectors off to be cleaned.there is nothing you can put in your tank to achieve the same results....(posted 7959 days ago)