Engine shutting down when it gets hot

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
JdmfairladyZ509
Posts: 1
Joined: Tue Feb 26, 2013 7:30 pm
Car: 1991 300zx twin turbo

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I'm new to this. But had a quick question. I got a 91 300zx twin turbo runs fine until it gets hot then the engine shuts down and takes a while to start up. It doesn't over heat tho. Some say ignition control module, fuel relay or fuel vapor locking. Has any of you had this problem?


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Ace2cool
Posts: 11650
Joined: Sun Apr 20, 2008 5:21 pm
Car: 1991 Nissan 300ZX TT
1966 Datsun Fairlady 1600
2005 Suzuki GSX-R 600
1974 Honda CB550 Four
2009 Ford F150 Lariat
Location: Murfreesboro, TN

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Oh Em Zee
Posts: 549
Joined: Fri Apr 17, 2009 6:55 pm
Car: '96 Nissan Z32 Slicktop
'90 Nissan Z32 2+2
Location: San Jose, CA

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It's probably not vapor lock. That never happens for our cars.
Pull codes as above.

It could also be PTU which was recalled.
If you have the one on the right, you're probably good to go.
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