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

My car has a hard time starting when its the first start in some time. Like first start of the day, It will fire then die. If i play with the throttle for a couple of seconds reving it up and down, then it will idle smooth. I can then shut it off immediatly. Then it will fire on its own fine. Same ...

Well I spent a whole day trying to use alpha N, I couldn't get it do squat. I could start and idle, but any slight touch of the pedal would kill the engine. I am going to play with my MAP resolution. It idles at 38kpa, but cruise is just close high throttle. My main problem now is my MAP fluctuates ...

Yeah thats what I have been thinking about, I am going to do some homework, try and figure it out. Its pretty simple I guess. Any major differences when switching over? Do you still use the TPS based accel enrichment? Are your maps pretty linear then as far as Idle to Full throttle? Do you have a ...

Well i am having some problems tuning my 4 throttle body 4ag. I can get it tunned pretty well for all out full throttle, but then its rich as heck for cruising. I am getting 90+ kPa at cruise. I have heard this is typical of ITBs because of the low vacuum area. I have had some thoughts, is there a ...

I was curiuse as to what differet people's opinions were on these to setups for ITB's. I just adapted a toyota 4 throttle system to my brothers mazda protege and we are having some tuning issues. Currently using speed density. We can get a its just super rich like 11-1. nice full throttle run and ...