1991 Z32 Starting Issue

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
ali300
Posts: 6
Joined: Wed Jan 11, 2017 12:07 am
Car: 91 z32

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Hi Z32 lovers,

I am new here. Owner of 91 Z32. I am having problem with my car. It starts for like 10 seconds then dies. I have spent almost 2 months to figure out what causes this. Here is my setup.

upgraded turbos and cams.
800cc fuel injectors
Upgarded fuel pump
adjustable FPR
Converted to AEM MAP Sensor 5 Bar
AEM EMS1
2.5" Exhaust System
Front mount intercooler w/piping


Nate_the_IV
Posts: 12
Joined: Wed Dec 21, 2016 10:47 pm
Car: 1996 Nissan 300ZX

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What are the symptoms? More details ='s better responses.

elecfus
Posts: 99
Joined: Mon Oct 17, 2016 4:09 am

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you're also going to need to post your complete engine build, maps and running logs of all the sensors. the engine is modified and the ECU has been out of support for 3 years now. you can probably narrow down the problem in AEMlog yourself by just looking for a hunting sensor reading or solenoid.

a stock engine tends to be unable to run 800cc injectors reliably at idle and even if it does, you're exceeding the physical design limits of the engine unless you also rebuilt the lower end of the engine with better than stock pistons, rods, crank assembly.

what's the history of this car? how long ago did you buy it? how long have you owned it? do you race it? did someone else build it? what condition was it in, why did they sell it?


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