MSefi.com read only forum (Jan.15,2018)

i think during cranking it uses whatever you have cranking trigger in ignition setup set too you may be set on trigger rise if so you could try trigger fall and maybe get a better responce and there is also calculated if the trigger fall doesn't help. Zane

off the subject but that a good looking yota 3 tc what kinda power you making still in a corrola zane

ok so at least its picking up the signal do you know if you have j 10 jumpered to igout on your board and any way to send me your setting from megatune maybe its just a incorrect setting . Zane

yeah this is true or aeromotive and some other companies make a voltage controller for the pump similar to what oem uses but i'm guessing that would do away the cheap cause i already got it to use method of the setup. Zane

weird i'm guessing you have already checked the settings in megatune maybe your cable to the megasquirt has a bad connection ran into that on a friends car with the tps wiring bad joint on the db37 plug maybe you could see if the hei will fire a coil itself to be sure it works too. Zane

does it show any rpm on megatune when cranking over and you aren't getting any thing to the white wire or are you getting nothing in megatune too Zane

are you using the optical input or the vr input zane

if gm can do it you can too just do like you were saying and if you don't take enough it will be rich and you can take out a little more at a time till you get it right a good wide band would make it easy but you could probably get it to drive ok by ear Zane

depends on the injector but most of them have a fine cone shaped mist a stream could mean low fuel pressure or a nasty injector. Zane

no problems works great adapter was the hardest part, and i made a cable the length i needed from a lokar cable. Zane

I don't personally have one on a car but the advantage is supposed to be that when the motor is in vaccum idiling or cruising it reduces the fuel pressue so that the difference between the intake pressure and fuel pressure is the same as anywere throughout the load rpm range wot would be 0 intake ...

Talk about crazy i have the exact same throttle body on my ford guess we are both cheap asses, lol but yeah on the nissan it has the little small water lines running through it i used it on mine seems to work and I used the f idle output for the fan control works good. had to make an adapter for it ...

try Mallory 4305-m it comes with 2 number 8 an fitting inculded can be boost referenced if needed if not needed just don't hook the line up, and its cheap 100.00 summit or jegs and it can even handle meathonal also. Zane

well thanks for the aditude good luck finding help

You can't really check injector voltage with a meter its a fast switching action on and off you need a scope or a light. There is a special light that will pull into the injector plug on your harness or you can wire in your own but you will have to turn the motor over to see if it is firing the ...

when you figure your required fuel in megatune its under fuel and injector control, it will ask for air fuel ratio 8.5 is a good starting number there and the ve able generator will make you a table close enough to start up on just whatch your timing and keep it low to start e-85 has a good ron ...

maybe your computer with megatune is just losing connection are you using a usb adapter zane

don, i couldn't get the msq downloaded but i was wondering if you are using the high out put ignition to directly drive your coil if so the dwell might be too long and the transistor or coil one may be overheating just another thought as the newer ig transistor has a thermal cut out and will work ...

try this place they sell the bungs and rail stock racepartsolutions.com zane

the high required fuel shouldn't hurt anything unless you runout of fuel on the top end or under load but if the injectors are big enough and the ve table is set to make up the difference it should be fine just check the duty cycle under load usually 80 is a safe limit