96 R/T Check Engine Code 505 Idles up and down. - 3000GT/Stealth International Message Center

94 White RT · 06-02-2008, 09:51 PM

I have a 96 Stealth R/T non turbo 5 speed Cali-spec, that I just bought and the idle goes up and down from about 1200-1600. The car is throwing a check engine code of P0505. I tried swaping out the TPS and no luck. I think the ecu on the car may have been changed by the prior owner. Is there anthing else I can do to fix this or do I need to take it to a mechanic. Any help would be great. Thanks.

94 white rt.

blusilvr · 06-03-2008, 08:20 AM

where u find it, what color is it? post pics

ooeygooey · 06-04-2008, 12:30 AM

When you swapped out the TPS did you set it right or just bolt it back on the intake?

SOHC3000GT · 06-04-2008, 03:08 AM

IAC malfunction...

94 White RT · 06-08-2008, 08:25 PM

When I put it in I set it. Also if it is a IAC malfunction how can I prove this and what do I need to replace to fix it?

94 White RT · 06-08-2008, 08:26 PM

I found it locally, and it is Red with Tan leather.

QUOTE=blusilvr;4883119]where u find it, what color is it? post pics[/quote]

blusilvr · 06-08-2008, 09:18 PM

sweet , I have never seen a red/tan 96 rt na.

94 White RT · 06-11-2008, 07:12 PM

Anyone?

ZombieMaster · 06-11-2008, 07:23 PM

OBD1 and OBD2 Codes -

94 White RT · 06-15-2008, 07:00 PM

I wound think that a Idle Control system malfunction would be the IAC valve, which I swapped out with another car, and it still did not fix it. What other checks can I do to narrow down the problem.

Quote:

Originally Posted by ZombieMaster

OBD1 and OBD2 Codes -

06-02-2008, 09:51 PM	#1 (permalink)
94 White RT Forum Member Join Date: Jun 2003 Trader Rating: (11)	96 R/T Check Engine Code 505 Idles up and down. I have a 96 Stealth R/T non turbo 5 speed Cali-spec, that I just bought and the idle goes up and down from about 1200-1600. The car is throwing a check engine code of P0505. I tried swaping out the TPS and no luck. I think the ecu on the car may have been changed by the prior owner. Is there anthing else I can do to fix this or do I need to take it to a mechanic. Any help would be great. Thanks. 94 white rt.

06-03-2008, 08:20 AM	#2 (permalink)
blusilvr NO Barack HUSSEIN Osama!! Join Date: Sep 2001 Location: WhereILiveFreeorDie Drives: PiMpMobile Trader Rating: (67)	Re: 96 R/T Check Engine Code 505 Idles up and down. where u find it, what color is it? post pics __________________ Lamborghini Marketing VP describing Countach- "on the down side, you can't take packages, there are only two seats so no kids, only a beautiful woman. The white one, she is like a virgin. The red one is like a mature woman, the black one like an intriguing woman."

06-04-2008, 12:30 AM	#3 (permalink)
ooeygooey Forum Member Join Date: Aug 2007 Location: Sugar Grove,Illinois Trader Rating: (0)	Re: 96 R/T Check Engine Code 505 Idles up and down. When you swapped out the TPS did you set it right or just bolt it back on the intake?

06-04-2008, 03:08 AM	#4 (permalink)
SOHC3000GT SOHC Power!!! Join Date: Apr 2006 Location: A nice city in KS Drives: A Mitsu made turd... Trader Rating: (97)	Re: 96 R/T Check Engine Code 505 Idles up and down. IAC malfunction... __________________ '93 Green 3000GT Fidanza 2.1 cltuch / Fidanza flywheel / 3SX ss clutch line / 3SX crank pulley / Lethal_VR4 manual steering rack / TT radiator / BigTyla ground wires / ebay intake / '99 lifters / TT fuel pump / Maximal solid motor mounts / 3SX long headers / TT race pipe / TT cat-back / KSport coilovers / Maximal rear toe & camber arms / UP rear strut bar / Seattle short shifter / TurboBob 8,800 rpm ECU PM me about 3S service in the Kansas City area.

06-08-2008, 08:25 PM	#5 (permalink)
94 White RT Forum Member Join Date: Jun 2003 Trader Rating: (11)	Re: 96 R/T Check Engine Code 505 Idles up and down. When I put it in I set it. Also if it is a IAC malfunction how can I prove this and what do I need to replace to fix it?

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06-08-2008, 08:26 PM	#6 (permalink)
94 White RT Forum Member Join Date: Jun 2003 Trader Rating: (11)	Re: 96 R/T Check Engine Code 505 Idles up and down. I found it locally, and it is Red with Tan leather. QUOTE=blusilvr;4883119]where u find it, what color is it? post pics[/quote]

06-08-2008, 09:18 PM	#7 (permalink)
blusilvr NO Barack HUSSEIN Osama!! Join Date: Sep 2001 Location: WhereILiveFreeorDie Drives: PiMpMobile Trader Rating: (67)	Re: 96 R/T Check Engine Code 505 Idles up and down. sweet , I have never seen a red/tan 96 rt na.

06-11-2008, 07:12 PM	#8 (permalink)
94 White RT Forum Member Join Date: Jun 2003 Trader Rating: (11)	Re: 96 R/T Check Engine Code 505 Idles up and down. Anyone?

06-11-2008, 07:23 PM	#9 (permalink)
ZombieMaster 12212012 Join Date: Apr 2002 Location: Rossville, IL Drives: 92RT/TT, 02WRX Trader Rating: (1)	Re: 96 R/T Check Engine Code 505 Idles up and down. OBD1 and OBD2 Codes - __________________ '92 Stealth RT/TT '02 WRX Wagon 94 SL - parting out