Odd thing happend today going to store, RPM dance

Double Glow · 11-11-07, 11:42 PM

I let her warm up and everything was fine, but i put her in d4 to leave and my revs kept going from the normal 600, to 400 then to 0 and bouncing between them. 400-0-400-0-400-0-400-0! Put her in N Then i would tap the gas and theyde go back up to 600 for a minute then start the 400-0 thing again. With every 0rpms i would think it would have died until it went back up to 400 again. Then 1/2way to the store, with the legend in d4, it went to 400-300-200-100-0 and the car was shaking then it died!!!! OMG! So i started it back up and everything was fine, and has been since then. WTF was that tho! It freaked me out! Sparkplugs? Clogged fuel lines?, Timing? I just put new oil 10w30 synthetic in 100miles ago!

*stevieray* · 11-12-07, 12:23 AM

Might be the Idle Air Control Valve (IACV). It has a rubber diaphragm in it that hardens with age and doesn't open & close like it should. The IACV can be taken apart and the rubber cleaned & reconditioned.

EDIT: Went back and reread your post and I think you may have had some trash in the fuel system that eventually got caught in the filter. People don't realize how much crap is down in the bottom of buried gas tanks.

Double Glow · 11-12-07, 12:38 AM

i never let my legend get below 1/2tank, and its 93...if i have crap in my tank il be pissed.

BUSINESSMAN07 · 11-12-07, 12:45 AM

was it cold? someone told me very small vaccume leaks are evident when its cold. and you are running thin, oil. if it wasnt cold then I would say, somthing in the fuel delivery department, maybe change that fuel filter.

Double Glow · 11-12-07, 01:15 AM

it was 47*...vacuum leaks might do this...I wonder what hose....time to get th e spray bottle and check...gives me an excuse to detail the engine bay!

Josh · 11-12-07, 05:05 AM

Whenever I was having RPM swings like that it all ended up being due to air in the cooling system. The computer picks up on the air in the system and causes problems with the thermostat, idle control etc. Once I had my BHG fixed, and then had to find a small loose hose clamp and properly bled my system again, runs like a top...no fluctuation in the RPM's etc., at idle.

blkonblkcpe · 11-12-07, 10:11 AM

OKAY LISTEN UP DWEEBS! I have zero cooling system problems, new hoses, all 22, new T-stat, new HG's, new radiator and cap.

Last week or a couple weeks ago, mine started doin the same thin as double G's

It was EXACTLY what I thought. AIR FROM THE HEAT SYSTEM!

Figure it out, summer's over, we are using our heaters for the first time, and all summer, the heater core has been closed off from the rest of the system. Trapped air has been sitting in there all summer, and when you open the heater valve, guess what, TIME TO BLEED AGAIN!

I used the DIY in Mike Diaz's sig, and it runs perfect again........

tjwahid · 11-12-07, 10:54 AM

its definatley the idle air control valve....happened to me (and few other legends i know of) just change the IAC and u should good to go

and also run some seafoam through our system

blkonblkcpe · 11-12-07, 11:24 AM

Hmmmmmmmm, well...................

Bleeding air don't cost nothing, but go ahead and throw parts at it, why not!

Double Glow · 11-12-07, 01:28 PM

im with blkonblk, this makes perfect sense, ive only run the heat for 2 days prior, and even then only the mile to school. Off to the DIY!

blkonblkcpe · 11-12-07, 05:22 PM

UPDATE PLEASE!

NoT A MyTh · 11-12-07, 05:40 PM

this happaned to me too man but what i did just for perks is on a cold morning i took the radiater cap of and it bursted like air was trying to escape added a little antifreeze and changed the cap never did it again

Double Glow · 11-12-07, 08:26 PM

I dont have money for antifreeze, i must deal with it until Friday. Extra Suck because tomorrow i dont have class and its going to be 70s!

aruca1 · 11-13-07, 06:53 PM

Had erratic idle after warm up from 1k to 2k rpm in P/N. Bleed 5+ times in a week seems to be fine now.

Double Glow · 11-14-07, 11:02 PM

It was 75 today! So i took the time and bled out the air a few quick times, everything is back to normal! Woot!

11-11-07, 11:42 PM	#1 (permalink)
Double Glow Youre wrong... Join Date: Oct 2006 Location: Roanoke, VA Posts: 4,856 Car 1: 94 Legend L Sedan Car 2: 94 Honda Civic Dx iTrader: (1)	Odd thing happend today going to store, RPM dance I let her warm up and everything was fine, but i put her in d4 to leave and my revs kept going from the normal 600, to 400 then to 0 and bouncing between them. 400-0-400-0-400-0-400-0! Put her in N Then i would tap the gas and theyde go back up to 600 for a minute then start the 400-0 thing again. With every 0rpms i would think it would have died until it went back up to 400 again. Then 1/2way to the store, with the legend in d4, it went to 400-300-200-100-0 and the car was shaking then it died!!!! OMG! So i started it back up and everything was fine, and has been since then. WTF was that tho! It freaked me out! Sparkplugs? Clogged fuel lines?, Timing? I just put new oil 10w30 synthetic in 100miles ago! __________________ "Recognition is the greatest motivator." My Myspace&My Facebook

11-12-07, 12:23 AM	#2 (permalink)
stevieray Swollen Member Join Date: Jan 2002 Location: Franklin, TN Posts: 7,583 Car 1: '95 LS Coupe Car 2: '91 LS Coupe Car 3: '97 NSX-T iTrader: (14)	Might be the Idle Air Control Valve (IACV). It has a rubber diaphragm in it that hardens with age and doesn't open & close like it should. The IACV can be taken apart and the rubber cleaned & reconditioned. EDIT: Went back and reread your post and I think you may have had some trash in the fuel system that eventually got caught in the filter. People don't realize how much crap is down in the bottom of buried gas tanks. __________________ *"King of Kleen"* "Know this. Being able to purchase a Legend and being able to afford a Legend are two separate things. Realize nothing post-purchase is cheap." - LegendGS

11-12-07, 12:38 AM	#3 (permalink)
Double Glow Youre wrong... Join Date: Oct 2006 Location: Roanoke, VA Posts: 4,856 Car 1: 94 Legend L Sedan Car 2: 94 Honda Civic Dx iTrader: (1)	i never let my legend get below 1/2tank, and its 93...if i have crap in my tank il be pissed. __________________ "Recognition is the greatest motivator." My Myspace&My Facebook

11-12-07, 01:15 AM	#5 (permalink)
Double Glow Youre wrong... Join Date: Oct 2006 Location: Roanoke, VA Posts: 4,856 Car 1: 94 Legend L Sedan Car 2: 94 Honda Civic Dx iTrader: (1)	it was 47*...vacuum leaks might do this...I wonder what hose....time to get th e spray bottle and check...gives me an excuse to detail the engine bay! __________________ "Recognition is the greatest motivator." My Myspace&My Facebook

11-12-07, 10:11 AM	#7 (permalink)
blkonblkcpe RALPHS HANDS ARE CLEAN! Join Date: Jan 2006 Location: Minnesota Posts: 10,034 Car 1: 91 LS Black window trim EDM/Hids Remus 2 1/2 cat back Headers stage 3 ecu Car 2: ,Red tails, Type 2 Car 3: 6 speed, EDM spoiler iTrader: (35)	OKAY LISTEN UP DWEEBS! I have zero cooling system problems, new hoses, all 22, new T-stat, new HG's, new radiator and cap. Last week or a couple weeks ago, mine started doin the same thin as double G's It was EXACTLY what I thought. AIR FROM THE HEAT SYSTEM! Figure it out, summer's over, we are using our heaters for the first time, and all summer, the heater core has been closed off from the rest of the system. Trapped air has been sitting in there all summer, and when you open the heater valve, guess what, TIME TO BLEED AGAIN! I used the DIY in Mike Diaz's sig, and it runs perfect again........ __________________ DEMOCRACY IS TWO WOLVES AND A LAMB VOTING ON WHAT TO HAVE FOR LUNCH. LIBERTY IS A WELL ARMED LAMB CONTESTING THE VOTE.

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11-12-07, 05:05 AM	#6 (permalink)
Josh Registered User Join Date: Nov 2002 Location: Kentucky Posts: 442 Car 1: 91 Legend L Sedan iTrader: (0)	Whenever I was having RPM swings like that it all ended up being due to air in the cooling system. The computer picks up on the air in the system and causes problems with the thermostat, idle control etc. Once I had my BHG fixed, and then had to find a small loose hose clamp and properly bled my system again, runs like a top...no fluctuation in the RPM's etc., at idle.

11-12-07, 10:54 AM	#8 (permalink)
tjwahid Toronto Legends Join Date: Mar 2007 Location: Toronto, ON Posts: 133 Car 1: 93 Pearl White LS Car 2: 1997 Honda C-RV iTrader: (0)	its definatley the idle air control valve....happened to me (and few other legends i know of) just change the IAC and u should good to go and also run some seafoam through our system __________________ "driving a legend as your first car is like losing your virginity to a porn star" PIMP THE SYSTEM

11-12-07, 11:24 AM	#9 (permalink)
blkonblkcpe RALPHS HANDS ARE CLEAN! Join Date: Jan 2006 Location: Minnesota Posts: 10,034 Car 1: 91 LS Black window trim EDM/Hids Remus 2 1/2 cat back Headers stage 3 ecu Car 2: ,Red tails, Type 2 Car 3: 6 speed, EDM spoiler iTrader: (35)	Hmmmmmmmm, well................... Bleeding air don't cost nothing, but go ahead and throw parts at it, why not! __________________ DEMOCRACY IS TWO WOLVES AND A LAMB VOTING ON WHAT TO HAVE FOR LUNCH. LIBERTY IS A WELL ARMED LAMB CONTESTING THE VOTE.

11-12-07, 01:28 PM	#10 (permalink)
Double Glow Youre wrong... Join Date: Oct 2006 Location: Roanoke, VA Posts: 4,856 Car 1: 94 Legend L Sedan Car 2: 94 Honda Civic Dx iTrader: (1)	im with blkonblk, this makes perfect sense, ive only run the heat for 2 days prior, and even then only the mile to school. Off to the DIY! __________________ "Recognition is the greatest motivator." My Myspace&My Facebook

11-12-07, 05:22 PM	#11 (permalink)
blkonblkcpe RALPHS HANDS ARE CLEAN! Join Date: Jan 2006 Location: Minnesota Posts: 10,034 Car 1: 91 LS Black window trim EDM/Hids Remus 2 1/2 cat back Headers stage 3 ecu Car 2: ,Red tails, Type 2 Car 3: 6 speed, EDM spoiler iTrader: (35)	UPDATE PLEASE! __________________ DEMOCRACY IS TWO WOLVES AND A LAMB VOTING ON WHAT TO HAVE FOR LUNCH. LIBERTY IS A WELL ARMED LAMB CONTESTING THE VOTE.

11-12-07, 05:40 PM	#12 (permalink)
NoT A MyTh Registered User Join Date: Nov 2006 Location: Columbia,MD Posts: 185 Car 1: 1992 acura legend iTrader: (1)	me to man this happaned to me too man but what i did just for perks is on a cold morning i took the radiater cap of and it bursted like air was trying to escape added a little antifreeze and changed the cap never did it again

11-12-07, 08:26 PM	#13 (permalink)
Double Glow Youre wrong... Join Date: Oct 2006 Location: Roanoke, VA Posts: 4,856 Car 1: 94 Legend L Sedan Car 2: 94 Honda Civic Dx iTrader: (1)	I dont have money for antifreeze, i must deal with it until Friday. Extra Suck because tomorrow i dont have class and its going to be 70s! __________________ "Recognition is the greatest motivator." My Myspace&My Facebook

11-13-07, 06:53 PM	#14 (permalink)
aruca1 Registered User Join Date: Sep 2007 Location: Green,OH Posts: 22 iTrader: (1)	Had erratic idle after warm up from 1k to 2k rpm in P/N. Bleed 5+ times in a week seems to be fine now.

11-14-07, 11:02 PM	#15 (permalink)
Double Glow Youre wrong... Join Date: Oct 2006 Location: Roanoke, VA Posts: 4,856 Car 1: 94 Legend L Sedan Car 2: 94 Honda Civic Dx iTrader: (1)	It was 75 today! So i took the time and bled out the air a few quick times, everything is back to normal! Woot! __________________ "Recognition is the greatest motivator." My Myspace&My Facebook

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