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

I will have to see. I still have a few ideas up my sleeve. My goal is just to get the street 25mpg. If I don't reach that goal I will have to look at what megasquirt I'll buy.

Ah, now I see where you are coming from. I'm assuming you have done all the common sense stuff to improve your mileage (tire pressure, alignment, fresh oil, good ignition, clean injectors, working EGR, etc.).

In that case, take a look at your O2 sensor. If there are 5 wires coming out of it, then ...

I am not running a megasquirt or a safc2. I was in the general section asking questions and it got moved here. I'm not going to pay crazy money for something and not have it work in my car. It's like shoot, then shoot some more and then ask the dead guy some questions.

20 degrees is stock for this ...

I have a auto, even my auto has fuel cut off?

20 degrees at idle. The car is NA, no turbo or supercharger. When I used to have nitrous I retarted the timing.

Well my car can coast for a good amount of time. The problem is it eats up too much fuel on accelarations. I was told that the SAFC II won't work because the throttle needs to be pushed at least 40% for it to work.

My timing right now is 20 degrees. My compression is 9.2 and I use mainly 89 octane ...

Say my accelaration is too rich 1000-2000rpm. If I were to lean it out wouldn't that put more strain onto my engine???

My A/F right now is 14.65

Those two measurements are not a fluke and I'll explain why.

If I were to drive only on the streets and never touch the freeway my mpg would be 20-22 ...

Well I solved my tuning problem. That wasn't the problem.

I did some mpg tests and my car gets 22.5mpg on the street and 43.1mpg on the freeway. I usually get 28mpg mixed.

So the only thing I can think of is the weight of the car is the problem. The car weighs 3000lbs and it has a 150hp engine. So ...

So my question is can the megasquirt be used to get better fuel economy??

Compaq888,

Maybe. It depends on your ability to tune, and how good a job your manufacturer did balancing emissions, etc., against efficiency.

Read this for a bit more on tuning for efficiency:

http://www.megasquirt.info ...

So basically you're saying It will be a piggyback because the car is an automatic and that the one I need only controls the fuel supply???

Now if I get the one you're recommending I need a wideband so I can control my A/F ratios??

Is the MegaSquirt able to control fuel 0-6100rpm, or only a ...

I don't know if this question came up, because most guys here want most hp, not fuel economy.

So my question is can the megasquirt be used to get better fuel economy??

Here is some backround info on my car. I have a 1999 nissan altima, auto. It is stock. It has Internal coil and it's ODB-2. It has ...