Quote:
Originally Posted by Cepheuz
ok so this is another, i had a 86' VW Golf GL, it had the k=jetronic fuel system, it had injectors fed by tubes to a control system that meter the ammount of fue depending on the volume of air, in this system there was a fuel pump that whe called cricket bacuse of it sound, its job was to maintain the presure the low presure injectors needed to work, once it reached this presure it shut off automaticalty
so why not natch one of this, connect it between the fuel line and the carburetor and measure the pulses of electricity when it turns on (it turns off automatiacly when it reaches a presure of 3psi i thing or something like that) and its small one just has to figure out the electrical side that sences current flow and sends a pulse, or just put a diode led and it will turn on every time there is flow and conect that led to the light thing i read about in the begining of the thread (the one with the two holes and the ball)
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If its a solenoid type pumps, they turn off and on by a pressure switch. The fuel volume however is not constant for each pressure pulse of the pump. It varies depending on flow, temperature, line flex and a bunch of things I forgot. check what kind of delivery pump it is and how it is controlled. I thought the k-jetronic just bypassed but i haven't played with that system so don't know.
I have started a homemade flow meter but haven't had a time to perfect it. i'll try to get some pics.