Intermittent hot start problem
08-17-2011, 09:24 AM
#1
Staging Lane
Thread Starter
iTrader: (5)
Join Date: Jul 2006
Location: Cherry Hill, NJ
Posts: 60
Likes: 0
Received 0 Likes
on
0 Posts
Intermittent hot start problem I just had the car dyno tuned by one of the sponsors but now I'm having a hot start problem. After drive the car a bit, if I turn it off and then try to restart after a few minutes it'll only crank and not start. If I wait 10-15 minutes it'll start without any problems. One thing I did notice is that my fuel pressure gauge goes to about 100 psi when this happens. Could the fuel be boiling in the rails from heat? I have a check valve in the fuel line about 18 inches from the fuel rail. Do I need to move it farther back in the fuel supply line or just get rid of it altogether? I also read somewhere that an overly heat-soaked IAT sensor could cause this as well. My IAT is mounted about 6 inches from the throttle body in the charge piping. Thanks for any help with this.
08-17-2011, 01:57 PM
#3
Staging Lane
Thread Starter
iTrader: (5)
Join Date: Jul 2006
Location: Cherry Hill, NJ
Posts: 60
Likes: 0
Received 0 Likes
on
0 Posts
Problem solved. I removed the check valve and the problem went away, no more 100psi in the rails. 
Last edited by KingOfCold; 08-17-2011 at 03:20 PM.
