Need helpt with Sard 550cc injectors

[b18onboost]

Ok i dont know if i bought a broken injectors or not but my used sard 550cc injectors kept flooding the engine. I pulled the plug and cylinder number #1 is filled with gasoline to the top. I did read up instructions on how to install them and i swapped orings that i bought from the Nissan dealer. I even try to put double lower orings but that didnt solve anything. My question is that does injectors have polarity? like minus and plus. Im beat and i dont know what else to try. Thank you

[Onizuka]

Do you have any kind of fuel system to reduce their flow? When the computer tells a 370cc injector to flow at 50%, you'll get 185cc @ some fuel pressure going into the cylinder. Without fuel control, you computer will think you still have the 370cc injectors in their but instead will be flowing 50% of 550cc, flooding the motor. If you know that already the only thing I can think is that either your fuel pressure regulator is staying shut send fuel pressure out the roof or the injector is staying open 100% of the time.

[b18onboost]

Do you have any kind of fuel system to reduce their flow? When the computer tells a 370cc injector to flow at 50%, you'll get 185cc @ some fuel pressure going into the cylinder. Without fuel control, you computer will think you still have the 370cc injectors in their but instead will be flowing 50% of 550cc, flooding the motor. If you know that already the only thing I can think is that either your fuel pressure regulator is staying shut send fuel pressure out the roof or the injector is staying open 100% of the time.

Thanks for the reply. Yes i do have a computer. IThe computer has been tested on another car and it works fine. I have a feeling the douche bag sold me a broken injector. My car was running fine with 370cc until i swapped them over so i dont think the fuel reg is bad.
Modified by b18onboost at 2:18 AM 5/19/2005

[robbbby]

My question is that does injectors have polarity? like minus and plus.

No they do not.

[b18onboost]

No they do not.

Ok it has been like 2 months and so last night i decided to work on my car. It turned out that the POS sard injectors caused a major fuel leak that when i drained my oil there was fuel in it. I drained like about a gallon worth of fuel and oil mixed together. So after that i dumped cheap oil Shell oil in and fired her up again and the engine started on first try. I already sold my SARD and got a new set of TOMEI. So what did i learn from this, SARD sucks. Well i dont know maybe it's just me but everyone else dont seem to have a problem. What i do like to point out though is that if you look at your stock injector and the SARD they dont seem to fit very well. I suspect SARD mass produce their injectors in one style to cut down production cost so in return they have fitment issue.

[VitaminT]

Glad you got it corrected. Some people don't relize that a stuck injector will end up putting raw fuel in the oil. Good thing you drained it. I know a guy at work that spun a rod bearing due to this.

[b18onboost]

Haha dude you dont know what kind of an idiot I am. At first I thought my starter was dying on me so i took my Audi and pushed the 240sx to get it to start. Thank god i didnt mess up any bearings or whatever. But yea i couldnt believe having too much fuel and oil mixed together will not start an engine.