i'm having a tuff time with this pfc. after i installed i did some casual driving and i am experiencing the same idle problem as everyone else, to tell you the truth i had the idle problem before the pfc and it actually help smooth it out alittle.

my problem is when driving and i start to spool u[ and i reach around 3000 rpm in any gear the car immediadly jerks back hard and won't let me go over 3000-3500 rpm. if i stay in a low gear and just drive on it without let the turbos spool up it will go pass 3500 rpm but you can feel it pull back a little. what do you guys think it is? where do i start looking on the power fc for some answers? i would like to write what i see on the screen but i don't know what i'm looking at. everyone talks about inj duty, mine is usually no more than 47%, my water temp usually does't go over 89C, inj tr and ld is usually at 27?, does anything sounfd wrong?

luigi

94 rx7
installed dp and exhaust and new vac lines.
i told jason i had a mp but i don't know if the pfc was tuned for it so i didn't install it.

 

I had a secondary injector stop working once, and the car would choke whenever I got into boost or tried to drive (slowly) over 4000 RPM. A new secondary injector fixed it totally.

You might try applying power to your secondary injectors and listen for a click. My bad one did not click when I applied 12V to it.

-Max

 

with the current setup i have is it okay to add bigger sec inj and get it remapped by xs?

i will obviously at this time add more mods before sending for a remap, what should i add? i do plan on going single and so far i am going with the apex single (or the hks t04r, if it is bb).

luigi

 

Check all the sensor readings on the PFC for functionality.
Especially the TPS voltages to match the RX7 manual.
Check the map sensor control hose.
Check O2 voltages.


Adjust your idle problem also.

 

i took the car to a mechanic, before putting the pfc in the check engine light came on. the check engine light read code 11 and 16, from my understanding it is the egr and o2 sensor. i just put in a down pipe and when i drove the car it was fine but when i pluged the pfc in thats when it started to react in the manner that it did. i'm having those two sensors checked, hopefully it is them because i don't want to have to upgrade the fuel systemm till after xmas.

luigi

 

It's probably your O2 sensor if you were already getting a code on it. I had similar problems last week but I replaced my O2 sensor and that all went away. I don't think it's your EGR. I think by installing the PFC you effectively don't have an EGR anymore - just some extra plumbing bolted to the engine that isn't functional.