Help Please Vibration and hesitation

Nashracing24 · 07-10-08, 11:06 AM

Yes, I have a 1991 acura legend coupe. usdm type 2 manifold, obx headers full exhaust cold air intake, asp racing pulley. My car was running fine with the occasional engine light coming on after a about 1min of driving, then it goes off when i turn off. It recently started shaking violently when i started it the other day while idling and almost dying and the i got my catalytic converter put on an it smoothd that out a little. but when i hit the gas to accelerate it is more sluggish than malasses. and wot nothing happens it does it the whole time i am drving what is the problem?? please help
My engine light is on and how exactly do i bridge the computer? mine doesnt have a light on my ecu. i put a paper clip and nothing happend .does the car have to be in ON position to bridge or off then ON after bridging??
PLEASE HELP I tested all of my coils.they show resistance at 1.2ohms or 1.3ohms up never steady 1.2ohms for 3 and 1.1 to 1.2ohms never steady 1.1 for the other three. Do I replace all 6 and that fixes my problem?? plugs are all fine. air intake is good and tightly sealed. idling is normal and sometimes really low. under any accelleration it barely moves like its choking or isnt getting some kind of current through it.
HELP PLEASE ASAP
you guys all are the best

ari_one · 07-10-08, 01:46 PM

For getting the codes, bridge the connector then turn the ignition switch to the on position (don't start). The light should now start blinking your code(s). Report back what codes you get.

Billyjack187 · 07-10-08, 10:23 PM

Sounds like something fun! Kidding of course, I would advise checking your fuel delivery system. Coil packs usually fail one at a time, and an intermittent engine light is vague, read them codes and holla back.

Nashracing24 · 07-12-08, 05:04 PM

05,07 and 15

Nashracing24 · 07-12-08, 05:05 PM

My ABS light is on and it read a code 12

ari_one · 07-12-08, 05:32 PM

05 - is the MAP sensor, manual states most likely a broken hose see manual page 11-46. It is also the only one of the 3 codes that is listed as causing irregular idle.

07 - Throttle Angle Sensor page 11-56
15 - Ignition output signal page 11-64 (possible that igniter is acting up)

ABS 1-2 is a motor or motor relay issue

Nashracing24 · 07-13-08, 03:22 PM

That helps me alot so i should check my vaccuum lines? or seafoam or what do you suggest. I bought another control box I found for a good price with a new map sensor. so do you think the one on my car is stil good? and does me taking out the ecu bother any of those codes or anything coud I have not bolted up something correctly grounding the ecu or something?? i had the leaking in my floor from the heater core.
Thanks

ari_one · 07-13-08, 06:48 PM

Check all your vacuum lines especially those that go to and from the MAP sensor. Otherwise try following the steps in the manual. Can't say I have much experience with that area of the car.

07-10-08, 11:06 AM	#1 (permalink)
Nashracing24 Registered User Join Date: Mar 2008 Location: Georgia Posts: 113 Car 1: 1991 Acura Legend Coupe iTrader: (1)	Help Please Vibration and hesitation Yes, I have a 1991 acura legend coupe. usdm type 2 manifold, obx headers full exhaust cold air intake, asp racing pulley. My car was running fine with the occasional engine light coming on after a about 1min of driving, then it goes off when i turn off. It recently started shaking violently when i started it the other day while idling and almost dying and the i got my catalytic converter put on an it smoothd that out a little. but when i hit the gas to accelerate it is more sluggish than malasses. and wot nothing happens it does it the whole time i am drving what is the problem?? please help My engine light is on and how exactly do i bridge the computer? mine doesnt have a light on my ecu. i put a paper clip and nothing happend .does the car have to be in ON position to bridge or off then ON after bridging?? PLEASE HELP I tested all of my coils.they show resistance at 1.2ohms or 1.3ohms up never steady 1.2ohms for 3 and 1.1 to 1.2ohms never steady 1.1 for the other three. Do I replace all 6 and that fixes my problem?? plugs are all fine. air intake is good and tightly sealed. idling is normal and sometimes really low. under any accelleration it barely moves like its choking or isnt getting some kind of current through it. HELP PLEASE ASAP you guys all are the best

07-10-08, 01:46 PM	#2 (permalink)
ari_one Registered User Join Date: Oct 2005 Location: Phoenix Posts: 1,971 Car 1: 1991 Legend Car 2: 1991 Legend Car 3: 95 ZX-7 iTrader: (37)	For getting the codes, bridge the connector then turn the ignition switch to the on position (don't start). The light should now start blinking your code(s). Report back what codes you get. __________________ Parting out my Red and White 91 L Sedans (mostly type 'F', some type 'E'): http://www.acura-legend.com/vbulleti...nix-az-122896/ or http://phoenix.craigslist.org/evl/pts/912725558.html Parts for sale: http://s265.photobucket.com/albums/i...albumview=grid Controls for sale: http://s265.photobucket.com/albums/i...%20For%20Sale/

07-12-08, 05:04 PM	#4 (permalink)
Nashracing24 Registered User Join Date: Mar 2008 Location: Georgia Posts: 113 Car 1: 1991 Acura Legend Coupe iTrader: (1)	here they are 05,07 and 15

07-12-08, 05:05 PM	#5 (permalink)
Nashracing24 Registered User Join Date: Mar 2008 Location: Georgia Posts: 113 Car 1: 1991 Acura Legend Coupe iTrader: (1)	ALSO My ABS light is on and it read a code 12

07-12-08, 05:32 PM	#6 (permalink)
ari_one Registered User Join Date: Oct 2005 Location: Phoenix Posts: 1,971 Car 1: 1991 Legend Car 2: 1991 Legend Car 3: 95 ZX-7 iTrader: (37)	05 - is the MAP sensor, manual states most likely a broken hose see manual page 11-46. It is also the only one of the 3 codes that is listed as causing irregular idle. 07 - Throttle Angle Sensor page 11-56 15 - Ignition output signal page 11-64 (possible that igniter is acting up) ABS 1-2 is a motor or motor relay issue __________________ Parting out my Red and White 91 L Sedans (mostly type 'F', some type 'E'): http://www.acura-legend.com/vbulleti...nix-az-122896/ or http://phoenix.craigslist.org/evl/pts/912725558.html Parts for sale: http://s265.photobucket.com/albums/i...albumview=grid Controls for sale: http://s265.photobucket.com/albums/i...%20For%20Sale/

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07-10-08, 10:23 PM	#3 (permalink)
Billyjack187 Wrench Join Date: Dec 2007 Location: Colorado Posts: 207 Car 1: 1995 Chevy K2500 Turbo Diesel Car 2: 1992 Honda Accord LX Car 3: 1993 Acura Legend T2 iTrader: (0)	Sounds like something fun! Kidding of course, I would advise checking your fuel delivery system. Coil packs usually fail one at a time, and an intermittent engine light is vague, read them codes and holla back.

07-13-08, 03:22 PM	#7 (permalink)
Nashracing24 Registered User Join Date: Mar 2008 Location: Georgia Posts: 113 Car 1: 1991 Acura Legend Coupe iTrader: (1)	Thanks for your help That helps me alot so i should check my vaccuum lines? or seafoam or what do you suggest. I bought another control box I found for a good price with a new map sensor. so do you think the one on my car is stil good? and does me taking out the ecu bother any of those codes or anything coud I have not bolted up something correctly grounding the ecu or something?? i had the leaking in my floor from the heater core. Thanks

07-13-08, 06:48 PM	#8 (permalink)
ari_one Registered User Join Date: Oct 2005 Location: Phoenix Posts: 1,971 Car 1: 1991 Legend Car 2: 1991 Legend Car 3: 95 ZX-7 iTrader: (37)	Check all your vacuum lines especially those that go to and from the MAP sensor. Otherwise try following the steps in the manual. Can't say I have much experience with that area of the car. __________________ Parting out my Red and White 91 L Sedans (mostly type 'F', some type 'E'): http://www.acura-legend.com/vbulleti...nix-az-122896/ or http://phoenix.craigslist.org/evl/pts/912725558.html Parts for sale: http://s265.photobucket.com/albums/i...albumview=grid Controls for sale: http://s265.photobucket.com/albums/i...%20For%20Sale/

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