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View Full Version : KA24DE Hesitation on cold start


speedracer2169
04-29-2010, 01:35 PM
Ok this is a weird one to me...I only get this problem when it gets real cold at night and I start the car. It will start up just fine and let it warm up for a minute and when I put it into gear she jolts and then engine wants to die. It was doing the same thing before I replaced my fuel filter and after I replaced it was driving fine. But it's only when it gets real cold. Once it's warmed up after like making it rev to 3k for a few minutes and sputter her out she drives fine all day. Any ideas what it could be? I can hear the fuel pump turning on has an intake and cat back that's about it

extra20
05-14-2010, 10:00 PM
check ur fuel pressure regulator the diaphram may not be holding fuel pressure thus tough start in the morning after pressure in rail has had time to drop. since its not consistent im sure the fuel pump is ok

speedracer2169
05-14-2010, 10:02 PM
check ur fuel pressure regulator the diaphram may not be holding fuel pressure thus tough start in the morning after pressure in rail has had time to drop. since its not consistent im sure the fuel pump is ok

cool thanks I'll check it out