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supercharger idle problem.

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Author	Topic: supercharger idle problem.
1980-2capristang Journeyman Posts: 49 From: cleveland ohio usa Registered: Jul 2000	posted 04-26-2001 02:42 AM hey i was wondering if anyone has any ideas on how to get my car idleing right with the blower. the problems im haveing is at idle (any where below 1400-1500rpm's) it surges.. like when i had it set to 750rpms for idle it would surge upto 1100 and down to as low as 200 and back up to 1100 till it would stall... so i set the idle up to 1450 it still surges a lil but like only a 100-200 rpm difrence. but i want that badass idle of like 800rpm or less (depending on where my alt stops chargeing.) anyone have any idea's on what my problem could be? i was thinking it mite be the ecu's program since it was a prototype ecu (the only one i could get my hands on) all parts are new. all new fi all new sencors new mass... new o2's new fuel injectors. #24. new icu new cap new rotor. the only parts that has to do with the motor and how it runs that i didnt replace with a new part is the fuel pump and ignition coil. but that seems to be working fine for now. so has anyone ever had this problem b4? ------------------ I HAVE A MUT! 1980 capri with 92 stang 5.0 body panles and 88 5.0 ho motor with 93 cobra fuel injection upper and lower intake and 93 cobra ecu. and much much more. IP: Logged
SteveLaRiviere Administrator Posts: 14659 From: Saco, Maine MCA # 47773 Registered: May 99	posted 05-19-2001 08:29 PM Have you checked the voltage at the TPS? ------------------ '72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Loc '94 F-150 XL 5.8L/E4OD/3.55 Limited Slip '97 Probe GTS 2.5L DOHC {Wife's car...} All Fords since 1977 IP: Logged
RESTOMAN Journeyman Posts: 20 From: HUNTINGDON VALLEY, PA. Registered: Mar 2001	posted 06-11-2001 05:15 PM HOW IS YOUR COMPUTER CALIBRATED? WHAT TYPE OF BLOWER ARE YOU USING? DOES THE CAR HAVE A MAF SENSOR? WRITE BACK WITH SOME MORE SPECS ON THE ENGINE CAM,HEADS,ETC. ------------------ 1969 TORINO COBRA 428SCJ 1989 MUSTANG 347 STROKER 2001 HARLEY DAVIDSON F150 IP: Logged
1980-2capristang Journeyman Posts: 49 From: cleveland ohio usa Registered: Jul 2000	posted 06-26-2001 01:07 PM i found out the problem. somehow the blower messed up my idle air valve. it started getting real bad. jumping up as high as 3000rpm. i just unpluged the idle air valve and put a block off plate on it and set my idle at 950rpm's and it works grate now... btw i run a yyy block with gt40 heads e303 cam 1.72 roller rockers. high flow oil pump. full length bbk headers. 2 1/2 inch off road bbk h-pipe. flow master mufflers. ported cobra upper and lower intake. 70mm tb 75mm mass air (pro-M) and 24# injectors... hmm i think that last mod is the powerdyne bd-11a with a 11lbs pully (runs upto 12psi but only at 6500-7000rpm's) and a k&n cone.. i hope i didnt miss anything. well thats my setup. ------------------ I HAVE A MUT! 1980 capri with 92 stang 5.0 body panles and 88 5.0 ho motor with 93 cobra fuel injection upper and lower intake and 93 cobra ecu. and much much more. IP: Logged

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