My Power FC was tuned by MZM in dallas before I bought the car, now i just put an engine in it. It doesn't feel like it used to, how do I tune the power fc? Any recommendations? I live in Louisiana and don't know of any rotary shops.....

The mods are listed below, thanks for your help.....

 

When posting mods for PFC tuning, only list mods that affect the engine air intake, exhaust, IC cooling, and fuel delivery. Too much trouble going through all the mods which are not directly related.

You want to try that again?

 

sorry, didn't know:


air intake, exhaust, IC cooling, and fuel delivery

dual k&n conicals.
no air pump
bonez downpipe and midpipe
greddy sp catback
apexi gt ic
denso fuel pump
sard fuel pres regulator

 

That's better, except the air pump really does not fit in any of those categories. It only affects idle if the O2 sensor idle control function is turned on.

Is your new engine set up the same as the original engine as far as mods and porting? Swapping engines should not have any affect unless the old engine was toasted, or the porting is different.

This is asumming that everything is conneced and set up properly.

You need to be more descriptive of the problems or differences that you are noticing.

Basically your engine mods are close to mine and mine is tuned close to stock base maps for timing. You would need a linear O2 sensor to check your fuel safely. Have you verified that your fuel pressures matches Mazda standards by the manual. That is your starting point.
Do fuel first than timing unless you know timing is bad.