It starts up from cold perfectly. After its fully warmed up it will restart immeditaly, but if T waite 10 to 20 minutes it will not. Only if I waite an additional 20 min. will then restart, after it has cooled. I replaced the accumalator to no effect. Warm up regulator the problem? If so where and who can fix it?
Not my top suspect (since it does restart warm immediately and you don't report a warm-running problem). If it wasn't leaking out the vent nipple (and you have to remove the hose attached to the vent nipple on a US version to check for this), shouldn't be a suspect. The next likely suspects are: 1. the check valve on the fuel pump outlet (and if not that), 2. the valve inside the fuel regulator portion of the K-Jet fuel distributor. But you should really first confirm that the actual problem is the fuel pressure falling too low, too quickly after warm shutoff before tossing more parts at it IMO.
mine was the same.wound up being the check valve.don't forget injectors can dribble fuel and cause a flooded condition.good luck
My 328 behaved the same. It would crank over like crazy but not fire up. I pulled the fuel pump fuse then wound it till it burst into life then stopped. I put the fuse back in and all was well. It has not done it again lately.
Just as ALL male human bodies will eventually get prostrate problems, ALL injection 308s will eventually get warm up start problems. In general it relates to excessive fuel into a hot injection air box, flooding the warm engine. A 15-20 minutes wait will allow normal restart...about enough time for AAA to get there for an unnecessary tow. In my case the cause was a faulty THERMO-TIME Switch, one of the several devices which energize the cold start injector. GL Ferrari Wiring Diagrams
Also check the fuel pump fuse. Mine would become high resistance when the engine was warm so the fuel pump shuts down. Cool off and the connection is good again, starts right up. Birdman fuse blocks solved the problem for good.
