Doesn't start when hot......

[Stephenab]

1990 300 zx NA
It starts fine cold. Drive it 30 minutes. Turn it off. It won't start. Let it set for an hour and it fires right up?..
New injectors. Runs perfect. ..... I'm lost.

Thanks for any help.

[gja06]

Similar thing was happening to me (see my thread). Check the spark plugs.

[nissanfreak12]

Did you have the issue before the new injectors?

Have you checked the ECU for codes?

[Stephenab]

Just once in awhile....haven't checked the codes yet.

[Stephenab]

Just once in awhile....haven't checked the codes yet.

[schwar74]

PRVR (pressure regulator vacuum relief) issue? Read these two links:

http://s95014253.onlinehome.us/63104/138229.html

hard-start-when-hot-t289512.html