ECU Codes and what they mean...G1 & G2 - Page 3

KokDahkJeE · 08-27-04, 08:25 AM

For Second Generation

to locate the service connector, its under the carpet

its the black and white wires where you stick your nifty paper clip

exmurderblah · 12-12-04, 07:39 AM

do i put the paper clip in both wires?and where should the
ignition be turned to?

***LegendGS*** · 12-12-04, 08:11 AM

Yes, in essence, you want to make a connection between the two wires. The ignition needs to be turned to the second position (third position being the one that starts the car).

exmurderblah · 12-12-04, 10:56 AM

i need all the D4 codes to determine problem.if any one can help out. Also, is there codes for the check engine light?

jessie64 · 12-28-04, 06:09 PM

...I'm new. What can I say. Oh. Did I mention that I am mechanically inclined? I screw up everything. But, before I screw this up...
I have read all the posts, and think I have a pretty good idea of what to look for, and understand the light sequence. I went to the Helm site, but, I'm not sure WHAT I'm looking for there. I saw several items in the DIY section, but, have no idea which one I need to read the codes.
I just bought the car today, and the check engine light has come on. The seller had no clue (go figure, it was his son's car and been sitting for about a month). What, EXACTLY, do I need to get the codes? Thanks for the help.
Jessie
Oh...it's an 89 Legend, automatic trans.

Legend_master · 12-28-04, 06:31 PM

Quote:

Originally Posted by jessie64

...I'm new. What can I say. Oh. Did I mention that I am mechanically inclined? I screw up everything. But, before I screw this up...
I have read all the posts, and think I have a pretty good idea of what to look for, and understand the light sequence. I went to the Helm site, but, I'm not sure WHAT I'm looking for there. I saw several items in the DIY section, but, have no idea which one I need to read the codes.
I just bought the car today, and the check engine light has come on. The seller had no clue (go figure, it was his son's car and been sitting for about a month). What, EXACTLY, do I need to get the codes? Thanks for the help.
Jessie
Oh...it's an 89 Legend, automatic trans.

Look under the passenger seat there is a little metal box covered by a piece of black plastic (with a clear plastic window) and a light that flashes when you have the key in the aux position. Count the amount of times it blinks and use this list below to to diagnose the problem.

1986-1990 Legend (G1)
Code # Explanation
1 Front Oxygen Sensor
2 Rear Oxygen Sensor
3 Manifold Absolute Pressure Sensor
5 Manifold Absolute Pressure Sensor
4 Crank Angle Sensor
6 Coolant Temperature Sensor
7 Throttle Angle Sensor
8 Top-Dead-Center Position Sensor
9 Number 1 Cylinder Piston Position
10 Intake Temperature Sensor
12 E.G.R. System
13 Atmospheric Pressure Sensor
14 Electronic Idle Control Module
15 Ignition Output Signal
17 Vehicle Speed Sensor
18 Ignition Timing Adjustment

phan_nam420 · 01-21-05, 12:44 PM

I am hella lost? This will help prevent future problems by finding out what your ECU is reading? will this help fix my shimmy problem? ( swurving left to right on the freeway on some roads)

ANY DIY on how to acess this unit?

*Daddymac117* · 01-21-05, 01:02 PM

Quote:

Originally Posted by phan_nam420

I am hella lost? This will help prevent future problems by finding out what your ECU is reading? will this help fix my shimmy problem? ( swurving left to right on the freeway on some roads)

ANY DIY on how to acess this unit?

the ECU only spits out codes when theres somethin electrically or mechanically wrong with the engine...if theres nothing wrong, it wont tell you any codes, so you cant prevent anything that may happen later...

and it doesnt deal with anything other than the engine, so no it wouldnt fix your shimmy problem

phan_nam420 · 01-21-05, 01:20 PM

Quote:

Originally Posted by Daddymac117

the ECU only spits out codes when theres somethin electrically or mechanically wrong with the engine...if theres nothing wrong, it wont tell you any codes, so you cant prevent anything that may happen later...

and it doesnt deal with anything other than the engine, so no it wouldnt fix your shimmy problem

Aww dang it i'm out of luck. Ok, so i should check my ECU for code readings every oil change? once a month? (examples) just to make sure that my engine is running smoothly and nothing is wrong electronically?

Ok i would like to check my ECU thing , because i never did when i got the vehicle. What do i do again.??!?? cuz after reading all the post's i'm still lost.. and kinda thinking.. like what the heck are they talking about. Thanks again MAN your THE MAN!!!

Let me know !please

*Daddymac117* · 01-21-05, 01:47 PM

Quote:

Originally Posted by phan_nam420

Aww dang it i'm out of luck. Ok, so i should check my ECU for code readings every oil change? once a month? (examples) just to make sure that my engine is running smoothly and nothing is wrong electronically?

Ok i would like to check my ECU thing , because i never did when i got the vehicle. What do i do again.??!?? cuz after reading all the post's i'm still lost.. and kinda thinking.. like what the heck are they talking about. Thanks again MAN your THE MAN!!!

Let me know !please

well theres no need to even check the ECU unless your Check Engine light is on...if not, dont worry about it...thats a good thing lol.

No check engine light = no major problem = ECU wont even say anything to you

just curious, did you go back to the FIRST post where Leon explained how to do everything? lol...or you did, and you just still didnt understand it?

Quote:

Originally Posted by Leon Millette

Location of ECU on 1991-1995 Legends

On the 1991-1995 Acura/Honda Legends, you have to jump a service connector located on the passenger side right under the dashboard near the door. The connector has two pin inputs. Connecting them with something like a paper clip will force the check engine light on the dashboard to display the codes.

Extracting Codes

With the car either running or the key in the ON position, perform the necessary steps above and observe the blinking of the light. The light will blink displaying all the codes in sequence and then repeating them.

Reading Codes

The code numbers are read by counting the number of blinks between longer pauses. On 1986-1990 Legends, the code number is indicacted by a series of rapid LED blinks between longer pauses.

On 1991-1995 cars, codes 1-9 are indicated by a series of short flashes; two digit codes use a number of long flashes for the first digit followed by the number of short flashes for the second digit. So a code 43 will be represented by 4 long and 3 short flashes.

The position of codes in a sequence can be helpful in doing diagnostics. A display showing 1-1-1-pause-9-9-9 indicates two problems occurring at different times. A sequence showing 1-9-1-9-1-9 indicates two problems occurring at the same time.

yetchh · 01-28-05, 05:03 AM

hey fullaz did anybody reveal what number the agc fuse is so i can reset my ecu?... mine is all in japanese so i have no idea... thanks again

danboy · 03-10-05, 12:43 PM

Sweet!!! I fixed one problem from those codes. Thanks Leon.
I recently bought a 1988 Honda Legend Exclusive Ti (2.0 litre V6 Turbo - Japan import - I'm in New Zealand). I found the flashing LED under the passengers seat and sorted that one out. NOW, I have another flashing LED under the drivers seat. What could that one be? It's giving me a code of 2 long flashes, and 8 short. Help?

Please?

Legend_master · 03-10-05, 01:28 PM

Quote:

Originally Posted by danboy

Sweet!!! I fixed one problem from those codes. Thanks Leon.
I recently bought a 1988 Honda Legend Exclusive Ti (2.0 litre V6 Turbo - Japan import - I'm in New Zealand). I found the flashing LED under the passengers seat and sorted that one out. NOW, I have another flashing LED under the drivers seat. What could that one be? It's giving me a code of 2 long flashes, and 8 short. Help?

Please?

It's you TCU or your Transmission Electronic controle unit. here is a link to the transmission codes, but I don't know if they apply for your model. YOu kinda have a rare car and alot of the parts are different. hope that helps, and take pictures of the car I wanna see Turbo V6 Legend

.

danboy · 03-10-05, 08:51 PM

Hmm, it doesn't appear to have any of those problems listed in the codes you provided.
Maybe it is different for this model.
All the fluid levels are sweet, the gear changes are nice and the kick-down is ok. Might have to pull it apart.

I bought it as a cheap do'er-up'er. $650NZD ain't bad.

She's a bit scruffy at the moment, so I'll throw some engine degreaser at the engine and clean it up then take some pics for ya. Nothing spectacular, very factory stock standard.
BUT, it's to be a work in progress and I'll keep you updated. Cheers, Dan.

Oh!! Does anyone know where the hell the aircon fan is on these things? The aircon pump works and cools the air, but unless the car is moving, the air doesn't get forced into the cabin. Need to fix the fan unit, wherever it may be??? Bah!! and I discovered an oil leak from out the top of the front rocker cover too.

danboy · 03-10-05, 08:53 PM

Trust me to get something rare and hard to get parts and service for!

08-27-04, 08:25 AM	#31 (permalink)
KokDahkJeE Registered User Join Date: May 2004 Location: MiLe HigH ~ Posts: 514 Car 1: KA8 1, 2, 3, 4, 5, 6, R iTrader: (0)	For Second Generation to locate the service connector, its under the carpet its the black and white wires where you stick your nifty paper clip __________________ 2nd Generation F.A.Q.

12-12-04, 07:39 AM	#32 (permalink)
exmurderblah Banned Join Date: Feb 2004 Location: San Pedro, CA Posts: 129 Car 1: 1994 Acura Legend L iTrader: (0)	do i... do i put the paper clip in both wires?and where should the ignition be turned to?

12-12-04, 08:11 AM	#33 (permalink)
*LegendGS* GS Hog Join Date: Jan 2002 Location: SoCal Posts: 6,863 Car 1: 1994 Legend GS-Auto Car 2: 1994 Legend GS-6 spd Car 3: 1993 NSX-6 spd iTrader: (2)	Yes, in essence, you want to make a connection between the two wires. The ignition needs to be turned to the second position (third position being the one that starts the car). __________________ Please read the Forum Rules and other announcements

12-12-04, 10:56 AM	#34 (permalink)
exmurderblah Banned Join Date: Feb 2004 Location: San Pedro, CA Posts: 129 Car 1: 1994 Acura Legend L iTrader: (0)	Need all D4 codes i need all the D4 codes to determine problem.if any one can help out. Also, is there codes for the check engine light? Last edited by exmurderblah : 12-12-04 at 01:44 PM.

12-28-04, 06:09 PM	#35 (permalink)
jessie64 Registered User Join Date: Dec 2004 Location: Florida Posts: 105 Car 1: 1989 Blue Legend Sedan 4dr iTrader: (0)	Pardon my ignorance, but... ...I'm new. What can I say. Oh. Did I mention that I am mechanically inclined? I screw up everything. But, before I screw this up... I have read all the posts, and think I have a pretty good idea of what to look for, and understand the light sequence. I went to the Helm site, but, I'm not sure WHAT I'm looking for there. I saw several items in the DIY section, but, have no idea which one I need to read the codes. I just bought the car today, and the check engine light has come on. The seller had no clue (go figure, it was his son's car and been sitting for about a month). What, EXACTLY, do I need to get the codes? Thanks for the help. Jessie Oh...it's an 89 Legend, automatic trans.

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01-21-05, 12:44 PM	#37 (permalink)
phan_nam420 Banned Join Date: Jun 2004 Location: San Bernardino HoLdinG it Down RepReseNtinG da 951 & 909 DonT Be HatIng F*$# all yah OnLIne TraSh TaLkers IMPORT FAN rice it OUt or white it ouT Posts: 624 Car 1: I"m a white Man! iTrader: (0)	I'm just new and confused and lost I am hella lost? This will help prevent future problems by finding out what your ECU is reading? will this help fix my shimmy problem? ( swurving left to right on the freeway on some roads) ANY DIY on how to acess this unit?

01-28-05, 05:03 AM	#41 (permalink)
yetchh Registered User Join Date: Sep 2004 Location: uk, nz-dual citizen.. but KIWI born and bred..a Posts: 777 Car 1: size 10 1/2 addidas trainers iTrader: (0)	hey fullaz did anybody reveal what number the agc fuse is so i can reset my ecu?... mine is all in japanese so i have no idea... thanks again __________________ http://img.photobucket.com/albums/v465/yetchh/a249.jpg http://img.photobucket.com/albums/v465/yetchh/a028.jpg LEGEND? sold .... EDIT:- debt paid , back to square one

03-10-05, 12:43 PM	#42 (permalink)
danboy Registered User Join Date: Mar 2005 Location: Rotorua, New Zealand Posts: 3 Car 1: 1988 Honda Legend Ti Exclusive 2.0 Turbo V6 iTrader: (0)	More flashing LED's Sweet!!! I fixed one problem from those codes. Thanks Leon. I recently bought a 1988 Honda Legend Exclusive Ti (2.0 litre V6 Turbo - Japan import - I'm in New Zealand). I found the flashing LED under the passengers seat and sorted that one out. NOW, I have another flashing LED under the drivers seat. What could that one be? It's giving me a code of 2 long flashes, and 8 short. Help? Please?

03-10-05, 08:51 PM	#44 (permalink)
danboy Registered User Join Date: Mar 2005 Location: Rotorua, New Zealand Posts: 3 Car 1: 1988 Honda Legend Ti Exclusive 2.0 Turbo V6 iTrader: (0)	Hmm, it doesn't appear to have any of those problems listed in the codes you provided. Maybe it is different for this model. All the fluid levels are sweet, the gear changes are nice and the kick-down is ok. Might have to pull it apart. I bought it as a cheap do'er-up'er. $650NZD ain't bad. She's a bit scruffy at the moment, so I'll throw some engine degreaser at the engine and clean it up then take some pics for ya. Nothing spectacular, very factory stock standard. BUT, it's to be a work in progress and I'll keep you updated. Cheers, Dan. Oh!! Does anyone know where the hell the aircon fan is on these things? The aircon pump works and cools the air, but unless the car is moving, the air doesn't get forced into the cabin. Need to fix the fan unit, wherever it may be??? Bah!! and I discovered an oil leak from out the top of the front rocker cover too.

03-10-05, 08:53 PM	#45 (permalink)
danboy Registered User Join Date: Mar 2005 Location: Rotorua, New Zealand Posts: 3 Car 1: 1988 Honda Legend Ti Exclusive 2.0 Turbo V6 iTrader: (0)	Trust me to get something rare and hard to get parts and service for!

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