LAST EDITED ON 29-Mar-01 AT 06:21 PM (PST)

Well, I just got my RC 370cc's installed today, and my fpr, at idle, is set at 29 psi. Under full boost I see about 60 psi and it's air/fuel is showing very "rich". The S-AFC is on its way.

PROBLEM:
1. The "Check Engine" stays on.
2. When rolling from a stop, with little pressure on the gas,
the car stutters real bad--sometimes even cutting off.
3. From a stop, if I rev it up a little before taking off,
the car will hesitate just a little. But, it sounds like
I'm wanting to race the next guy.

PLUS:
1. Once the initial hesitation is overcomed the car takes off
a lot stronger--without the "hesitation" I experienced
before the 370cc's were installed.
2. Hesitation on the freeway is almost non-existent. The car
accelerates stronger and faster.

My question is, has anyone experienced this situation or knows of anyone who has? Don (PHAT99ECLIPSE), did you friend have this problem? Any input by anyone is greatly appreciated.

~fly1
http://fastgs.homestead.com/fastgs.html

that equals internal carbon build and a bad cat if you take too long. I would drop the stocks back in until you get the FC.

Skrilla
'97 Base Talon NA
"Technology: The Only Replacement for Displacement"
"Peace and Turbo Grease"

I hope to get the s-afc this saturday. I hope I didn't do too much damage already.

~fly1
http://fastgs.homestead.com/fastgs.html

I'll try to get ahold of him tonight and see what he says though... email me me offline with specific symptoms and I will ask them all to him, might even be able to give your email addy to him to get with you directly...

DoN

'99 GS Sports Edition
Star Stage 2, CFDF Clutch
Greddy Manual Boost Controller
Greddy BOV and EVO Exhaust
Greddy TT and shift knob
AF/X Underdrive Pulley
AEM Big Brake Kit
B&M Edge Short Shifter
Eibach Sportlines with Tokiko Blues

Did you want to email me or did you get the problem worked out?

Later,
DoN

'99 GS Sports Edition
Star Stage 2, CFDF Clutch
Greddy Manual Boost Controller
Greddy BOV and EVO Exhaust
Greddy TT and shift knob
AF/X Underdrive Pulley
AEM Big Brake Kit
B&M Edge Short Shifter
Eibach Sportlines with Tokiko Blues

LAST EDITED ON 31-Mar-01 AT 06:44 PM (PST)

Sorry man, I've been pretty busy. I still experience the running "rich" symptom now but hopefully that'll be gone tomorrow. I just installed an APEXi S-AFC this afternoon and a friend of mine will help me set it up tomorrow morning. Thanks for trying to help. I really appreciate it.

~fly1
http://fastgs.homestead.com/fastgs.html

Which FMU setting are you going to use with the 370cc's ?
(5:1) ?

fly 1, what year is your car? OBDI or OBDII? can you check the error codes by cycling the ignition key?

just wondering exactly what the ecu registers that as.

LAST EDITED ON 03-Apr-01 AT 06:14 PM (PST)

My car is a '98 GS, so it's OBDII. I tried the key cycling thing and it either didn't work or I didn't do it correctly. I haven't reset the ecu and I won't until I find out what caused the CEL to come on and stay on--still on, even after the S-AFC is installed. I've been getting off work very late, so I haven't gotten a chance to pick up an engine code troubleshooter unit. The S-AFC got rid of the rough idling and "stuttering" that I experienced before. My car actually runs really strong now.

Oh BoostnRS, to answer your question, I have HRC's adjustable FPR; I set the, at idle fuel pressure to 29 psi, and it was still very rich, which caused the prior rough idle problem. With
the S-AFC, I leaned it out and everything is fine now. I still have to set high throttle--rain mixed with snow prevented me from taking the car out to tune the top end. My current settings:

TH-point: Lo 30% Hi 80%
Ne point: 1k:-10 2k:-10 3k:-10 3.5k:-10 4k:-10 5k:-10 6k:-10 7k:-10

Right now, I'm playing on the safe side. Once I get an EGT gauge, I'll do a more precise trimming.

~fly1
http://fastgs.homestead.com/fastgs.html

yeah i believe they disabled the key-cycling feature in 97 or 98. sucks. anyway, i'm glad the afc seems to be working for ya. i suspect that whatever tripped the check engine light is no longer a problem. good call on saving the error code by not resetting the ecu. i'm just as curious as you about what code was stored. gimme an update after you retrieve it with the scan-tool.