David K Posted January 8, 2003 Share Posted January 8, 2003 Alright, little rant here. The 79 stock F/I system reallllly blows. I have been through at least 5 AFM's in the last year. They always need adjusting due to the temperature change outside. Living in SoCal, the temp changes everyday, during the day, and then at night. My fuel pump just sucks. After idleing for a while, it just wants to die. The fuel pump is the cause of my low power ive had lately, i just know it. Now, i understand the fuel pump works together with the AFM. When you turn on the engine, the flap in the AFM opens and sends a signal to start the fuel pump. Ive figured this out by having a friend lay down by the fuel pump, turning ignition switch to acces and moving the wiper arm in the AFM a few mm's. The fuel pump turns on when i moved the afm a tad. So i have that fact burned in my brain. I hate electronics, especially on a daily driven car. Also, i cant sanely handle adjusting the AFM a few times a day so the car runs right. I want to replace the stock f/i with the Z31 300zx F/I system. Things i need: *COMPLETE list of items i would need from a Z31 *the BEST detail on what i need to do to change everything. *PICTURES if possible. *the name of a good shrink to visit when i finish. Feel free to reply no matter how small or big your thought is. ANYTHING helps me right now. Thanks. Quote Link to comment Share on other sites More sharing options...
Guest Zcarsmakemyheadhurt Posted January 9, 2003 Share Posted January 9, 2003 Hey buddy, be done with the whole thing and go stand alone. Your AFM will go to the trash can and the fuel pump will be fired by the relay from the ECU and no falty connectors with the new harness, trust me the car will have a new lease on life. AC Quote Link to comment Share on other sites More sharing options...
fl327 Posted January 9, 2003 Share Posted January 9, 2003 do it, earthling Quote Link to comment Share on other sites More sharing options...
David K Posted January 10, 2003 Author Share Posted January 10, 2003 As much i as would like to go stand alone, i do not have the $$$. Quote Link to comment Share on other sites More sharing options...
Guest Carrman Posted January 16, 2003 Share Posted January 16, 2003 David, did you ever get anymore info on the swap? Quote Link to comment Share on other sites More sharing options...
fl327 Posted January 16, 2003 Share Posted January 16, 2003 you really should not have to swap afms like that, have you tried replaceing the ecu, or seeing if the harness is faulty?? outdated as it is, you should not have to replace the afm so much, or at all. one better thing i could see is maybe you could use the z31 314cc injectors, nismo also states a set of 555cc injectors as an upgrade, but i dont think it would work with the stock efi, but then why would it be listed in the nismo catalog when there is no ecu upgrade Quote Link to comment Share on other sites More sharing options...
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