Ok my mods are, downpipe,streetport, intake, catback, stock gutted midpipe, pulleys, front mount and power fc..relevent mods anyhow..

Well I just installed some 850CC injectors in the primary slots, and I noticed during second gear and up during the transition i get harsh breakup. I was wondering if this was due to me not resetting my ecu by disconnecting my battery or incorrect settings on my power fc. I am running a basemap from this basemap site, with same mods as me. I did however change the injector settings on the pfc to the following:

FR.PR 64.5% +0.04 ms
RR.PR64.5% +0.04 ms

While it is nice to get a 70% duty cycle at +- 13psi, it is not nice to have a nasty breakup in second gear causing the car to surge. Any help would be appreciated.
Also the map im running is the suganuma map off this site.

 

heres a solution, buy a protege 5 and turbo it woooo

 

No thanks i like running under 16 second quarter mile times thx^_^

 

Actually i think i may have figured out why, but i cannot test it because its raining outside, its either what i thought before or, its pfc sensing overboost and cutting fuel.

 

wideband!!!!!!.........

 

Did you change the injector size?

 

The setting on the pfc , yes, i have 850 primaries now, and i changed the pfc accordingly.

 

Best bet would be to put a o2 or wb on it to see if you are rich or lean during the stumble/surge. You may need to play with the inj overlap or the Sec transition settings to get it right.

 

should be 64.7%

 

Ok figured out the problem....BAD PLUGS, LOL, first thing i should have checked for, anyways, i also get break up still but that is due to my car running extremely rich at anything past 13 psi. Wish i could go test drive my car, but my master cylinder crapped on me and the brakes keep locking up.

 

First thing you should do is turn the boost down and drive easily until you can get a wideband on there.

13 psi with those mods and the base map will be lean. I'm assuming by base map you mean the default map that comes with the PFC. That map doesn't have enough fuel for your mods and the timing is to aggressive for street port.

Jack

 

Just read you post over and see its a base map for your mods. I still say turn the boost down until you get a wideband on there - every car is different.

Jack