Need some help

89HondaLegend · 05-06-08, 08:06 PM

Where do you turn when you need answers... The Acura Legend forum

Still have a problem with my mother's G2, any chance you guys might be able to suggest what is causing the problem... The G2 guys haven't been able to assist so far.

Problematic G2 Legend

NuclearSymphony · 05-07-08, 01:15 AM

Wow, all the times we've been trying to get ahold of clear G1 corners, and you're giving them away! Wish I knew more about G2s, it seems to definitely be fuel delivery/ECU related. Intermittant, too, if it ran fine yesterday and today it's pig rich.

bandoni™ · 05-07-08, 01:56 AM

might sound out of the ordinary steve but how are the ground connections? also how is the wiring leading to the o2 sensors? also you may want to check for any shorts leading to the ecu, it almost sounds as if the o2 sensors arent working at all IE it running "pig rich"

Muffo · 05-07-08, 05:27 AM

can ya gey hold of another ecu and swap it to see if it does anything

89HondaLegend · 05-07-08, 06:37 AM

Will have to try and get my hands on one from a Honda wrecker. Only problem is that it won't be that cheap and there is no gaurentee of it's condition.

I have attached a link in the other post that shows the excessive fuel coming out of the exhaust.

I will have to check the timing, and recheck everything

Thanks for the suggestions guys, really appreciate it. Any more are welcome.

Muffo · 05-07-08, 06:43 AM

timing shouldnt affect it and youd know if it was that bad. Pity you dont know some1 who has a g2 to just swap the ecu with and if it fixes it then you know you just need a new one. Was there any particular thing that happened when this problem first showed its face

89HondaLegend · 05-07-08, 06:54 AM

The fluctuating idle was the first symptom, it has never gone away, bleeding the cooling system after hours will still result in a fluctuating idle. Perhaps a vacuume line, but what one would cause it to run as rich as it is?

It got so bad that it didn't start, that's when the igniter was replaced with another one... this one could be faulty as it is second hand, I suppose I will have to get my hands on another one to see.

Honda did get the timing off by 1 or 2 degrees when they repaired the BHG. They then corrected it and it was running at 1500 RPM idle but not running rich.

We have had a combination of high and low idle and very rich mixture... I am lost for answers.

bandoni™ · 05-07-08, 10:43 AM

hey steve I am going to the pick and pull today do you want me to see if i can find you a spare ecu? I am sure the shipping to australia isn't that bad.

legend89chopped · 05-07-08, 02:43 PM

INTERMITTENT fuel delivery problems are usually due to a short to ground in the injector circuit. The ECU supplies a ground to activate each injector, and if there's a short, an injector on that circuit would be wide open all the time. That's my first guess.

And just to recap the obvious, check ECU grounds and connections, but I thiink that's been stated.

Also, check if the G2's have a resistor pack for the injectors like the G1's. It could also be at fault.

89HondaLegend · 05-08-08, 04:42 AM

Thanks Bandoni, if I am not too late that would be swell. Don't know what time or day it is there atm lol. I just got home from work and am off to my other job so I will catch up with you later.
Many Thanks.

Houston88L · 05-08-08, 08:48 AM

Ok let's start with some basic stuff here.
1.Does it have vacume going to the fuel pressure regulator ?? Pull the vacume line off the regulator and look were the line connects is it wet in there?? If it is then regulator is blown . With the idle being high I suspect a vacume leak.Take some carb cleaner and spray around the intake and vacume lines if it smoothes out you found your leak.
2.The tw sensor... The G1s have two sensors one for the gauge and one for the ecm don't know about the G2s it might be set up that way also. Could have changed the wrong one IT HAPPENS !!!
3. Are you running the factory brand and heat range plugs in it ??
4.Recheck air filter and air tubes going to it could have some critters living in there LOL .Check all that and repost. HOPE THIS HELPS !!!

bandoni™ · 05-08-08, 09:03 AM

sorry steve there were no g2s at the wrecking yard

, rosalinda and I looked for ya.

legend_fan27 · 05-08-08, 10:54 AM

well im not completely sure if the legends have them but my friends miata did the same thing. could be the Idle Air Control Valve(IACV). not sure how to test.but just use your fingers and plug some holes for a second or two and see how it differs. also you can test your coil packs with a multi meter.set it to ohms. just take the two leads and put one on each side ...not sure what factory specs are but , if you set it to volts it should read overload or OL.hope this helps

89HondaLegend · 05-09-08, 10:42 AM

Thanks guys, really appreciate the help.
I will test a couple of things and post back in the morning. I am desperate for sleep. WORK WORK WORK.

Thanks for looking Bandoni, I appreciate it.

05-07-08, 01:15 AM	#2 (permalink)
NuclearSymphony TopGear Fanatic Join Date: Oct 2007 Location: Behind the WHEEL Posts: 756 Car 1: 1990 KA4 5M Car 2: BMW M7 Project iTrader: (3)	Wow, all the times we've been trying to get ahold of clear G1 corners, and you're giving them away! Wish I knew more about G2s, it seems to definitely be fuel delivery/ECU related. Intermittant, too, if it ran fine yesterday and today it's pig rich. __________________ ZF Clubsport Online Store ZF Clubsport Blog

05-07-08, 01:56 AM	#3 (permalink)
bandoni™ putting the ass in class Join Date: Jun 2006 Location: casa grande, az Posts: 3,701 Car 1: 90 honda accord ex5speed Car 2: 89 legend sedan auto iTrader: (3)	might sound out of the ordinary steve but how are the ground connections? also how is the wiring leading to the o2 sensors? also you may want to check for any shorts leading to the ecu, it almost sounds as if the o2 sensors arent working at all IE it running "pig rich" __________________ sig by doubleglow the sigwhisperer ƃuıʇsod ǝɹoɟǝq ɥɔɹɐǝs plnoɥs sɹǝsn ʍǝu join the acura legend flickr group visit my flickr page

05-07-08, 05:27 AM	#4 (permalink)
Muffo Registered User Join Date: Nov 2007 Location: Australia Posts: 539 Car 1: 88 ADM coupe Car 2: 88 JDM coupe Car 3: 87 coupe iTrader: (0)	can ya gey hold of another ecu and swap it to see if it does anything __________________

05-07-08, 06:43 AM	#6 (permalink)
Muffo Registered User Join Date: Nov 2007 Location: Australia Posts: 539 Car 1: 88 ADM coupe Car 2: 88 JDM coupe Car 3: 87 coupe iTrader: (0)	timing shouldnt affect it and youd know if it was that bad. Pity you dont know some1 who has a g2 to just swap the ecu with and if it fixes it then you know you just need a new one. Was there any particular thing that happened when this problem first showed its face __________________

05-07-08, 10:43 AM	#8 (permalink)
bandoni™ putting the ass in class Join Date: Jun 2006 Location: casa grande, az Posts: 3,701 Car 1: 90 honda accord ex5speed Car 2: 89 legend sedan auto iTrader: (3)	hey steve I am going to the pick and pull today do you want me to see if i can find you a spare ecu? I am sure the shipping to australia isn't that bad. __________________ sig by doubleglow the sigwhisperer ƃuıʇsod ǝɹoɟǝq ɥɔɹɐǝs plnoɥs sɹǝsn ʍǝu join the acura legend flickr group visit my flickr page

Remove Advertisements Sponsored Links
The Acura Legend & Acura RL Forum Advertisement

05-08-08, 08:48 AM	#11 (permalink)
Houston88L Registered User Join Date: Sep 2004 Location: Houston Texas Posts: 141 Car 1: Acura Legend 1988 L White&Grey iTrader: (0)	Ok let's start with some basic stuff here. 1.Does it have vacume going to the fuel pressure regulator ?? Pull the vacume line off the regulator and look were the line connects is it wet in there?? If it is then regulator is blown . With the idle being high I suspect a vacume leak.Take some carb cleaner and spray around the intake and vacume lines if it smoothes out you found your leak. 2.The tw sensor... The G1s have two sensors one for the gauge and one for the ecm don't know about the G2s it might be set up that way also. Could have changed the wrong one IT HAPPENS !!! 3. Are you running the factory brand and heat range plugs in it ?? 4.Recheck air filter and air tubes going to it could have some critters living in there LOL .Check all that and repost. HOPE THIS HELPS !!!

05-08-08, 09:03 AM	#12 (permalink)
bandoni™ putting the ass in class Join Date: Jun 2006 Location: casa grande, az Posts: 3,701 Car 1: 90 honda accord ex5speed Car 2: 89 legend sedan auto iTrader: (3)	sorry steve there were no g2s at the wrecking yard , rosalinda and I looked for ya. __________________ sig by doubleglow the sigwhisperer ƃuıʇsod ǝɹoɟǝq ɥɔɹɐǝs plnoɥs sɹǝsn ʍǝu join the acura legend flickr group visit my flickr page

05-08-08, 10:54 AM	#13 (permalink)
legend_fan27 Registered User Join Date: Apr 2006 Location: SD Posts: 277 Car 1: 95 achieva Car 2: 87 legend(junkyard) iTrader: (0)	well im not completely sure if the legends have them but my friends miata did the same thing. could be the Idle Air Control Valve(IACV). not sure how to test.but just use your fingers and plug some holes for a second or two and see how it differs. also you can test your coil packs with a multi meter.set it to ohms. just take the two leads and put one on each side ...not sure what factory specs are but , if you set it to volts it should read overload or OL.hope this helps

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread: