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Engine Tech Technical discussion related to all relevant engines such as KA, SR, RB, CA, 2JZ , L24/26/28, VG, VQ, and LSx series.


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Old 10-08-2019, 02:55 AM   #1
Tip315
 
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Just bought a 240

I bought a 1993 240sx and my problem is that the engine keeps flooding with fuel I’m getting compression I’m getting spark when I crank the engine it keeps trying to start but won’t turn over and the injectors don’t leak you can’t just hear the gas filling up the cylinders
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Old 10-08-2019, 06:23 AM   #2
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Okay at least you got it in the right section... so I will bite.

Check your injector o-rings.

They are a common point of failure causing excess fuel to seep into the cylinder and flood it w fuel. Cheap and easy to replace, if you haven't done so already

We do have a small question thread for this very reason...

https://zilvia.net/f/showthread.php?t=297481&page=762
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Old 10-08-2019, 01:37 PM   #3
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Tried what you said still didn’t work
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Old 10-08-2019, 01:53 PM   #4
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So what your sayn to be clear is, the engine turns over, your getting spark and fuel, but way too much gas is entering the cylinder?
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Old 10-08-2019, 02:04 PM   #5
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remove the fuel rail from the intake manifold, while leaving the fuel lines attached.

Cycle the key to the "on" position, but do not crank the engine.

Inspect the fuel rail for leakage.






Also, are you running an aftermarket FPR?
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Old 10-08-2019, 04:10 PM   #6
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So when I try to crank the car basically it makes this pumping noise and the rpm gauge starts to flicker like itís trying to start but wonít
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Old 10-08-2019, 04:26 PM   #7
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Oh god......

You have spark at the plugs?

Do you have fuel pressure?

Are your injectors firing?


Lets keep this simple
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Old 10-08-2019, 04:34 PM   #8
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Oh god......

You have spark at the plugs?

Do you have fuel pressure?

Are your injectors firing?

Lets keep this simple
FAST

Fuel

Air

Spark

Timing
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Old 10-08-2019, 04:38 PM   #9
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Yup^ was to lazy to type that out.

Think ima just copy paste cause gotta keep sayn that over and over in the tech section. Should just be a sticky..solve 90% of issuse here
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Old 10-10-2019, 09:28 AM   #10
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oh god
"I just bought a 240, the oldest, most needy bitch on the planet.... and I want to daily drive it now. btw whats a spark plug? and how does fuel injector work "

-.-
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Old 10-10-2019, 09:57 AM   #11
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Lmfao hahaha
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Old 11-05-2019, 08:53 PM   #12
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Quote:
Originally Posted by Tip315 View Post
I bought a 1993 240sx and my problem is that the engine keeps flooding with fuel Iím getting compression Iím getting spark when I crank the engine it keeps trying to start but wonít turn over and the injectors donít leak you canít just hear the gas filling up the cylinders
Stuck fuel injector. It must be replace. Take your fuel rail out but not the injector and turn ignition on. There should be no fuel spraying and no leak on any fuel unjector.
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