TwinTurbo.NET: Nissan 300ZX forum - backfire issue worst fear... bad gasket?
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Subject backfire issue worst fear... bad gasket?
     
Posted by SaphireZ on August 05, 2012 at 10:31 PM
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Message i'm wondering if im not getting enough fuel actually... my guage barely reads 40 psi when rev... car starts right up, idles great until it gets warm then seems to choke unless i give it some gas. i give it some gas the rpms actually drop if i take them too high it back fires....

Things i have checked:

Codes: read 5long 5 short
compression checks out
new plugs
tested injectors
tested o2 sensor codes they checked ok

What are the signs of a bad gasket? There aren't many shops where i live that are familiar with these cars, and I have put so much into this car im about ready to seriously give up and just sell it for what i can... it's a brand new motor, it's got a sweet setup i spent way more then i would ever get out of it.... I really really want this thing to work but i hate the thought of it sitting in the garage again...

Someone recommended checking the timing i have no idea how to do this, is there a right up on how to check this? It just seems to be getting worse it used to run just fine until it got warm not its just getting worse.

any ideas... are much appreciated.

Not trying to plug a site... but pictures of the car and more info on the setup are at [ www.my-mods.com/view_vehicle.php? ]|=1&vid=33&vehicle=1993-Nissan-300ZX-TWIN%20TURBO

     
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