hinspire93

Hi, I own a JDM Honda Legend 2005 with 51K km on the odometer. Yesterday the CHECK ENGINE light went on during driving and in a few minutes the SH-AWD came on. The car did not show any signs of technical failure - the torque indicators continued showing torque distribution as usual. Went to the dealer, they hooked up a scanner which displayed a P0325 engine code (no signal from knock sensor) and a 77-1 SH-AWD error code without description. Has anyone experienced this before? Any ideas how a knock sensor failure may be affecting SH-AWD? Is there any actual trouble with SH-AWD? Can the car be driven until the sensor is replaced? Thanks for any feedback....

TampaRLX-SH

There have been a few postings where members had warning lights due to sensor issues. The SHAWD warning is usually a secondary warning to the emissions issue / knock sensor.

If I remember there is a TSB about this with the EGR also causing the SHAWD warning. The members that reported these issues had no problems with the SHAWD and the sensor(s) was replaced.

I would suspect your knock sensor caused the cascade of warnings, including the SHAWD.

jfarabaugh

I had an EGR error code (can't recall whcih one right now) and the SHAWD light would come off and on for the 3 days the EGR code was on until I got it to the dealer. The tech told me it was common for both to come on at the same time.

neuronbob

I looked through the Official RL TSB Thread and couldn't find a TSB on this specific issue.

Chas2

I think it is pretty common for an emissions related Check Engine Light to trigger a VSA type of error. In two Toyotas we have, an failure in an emissions system solenoid for the gas tank vapor control system caused a disabling of the VSC, and a loose gas cap in one of them triggered the same error.

At least, in relatively newer cars, such as the RL, a loose gas cap is at least called out on the MID, and does not throw a CEL. The RL will reset itself once the cap is tightened after driving for several miles above a certain speed, as detailed in the OM. The older Toyota will reset the CEL after you drive for 50-100 miles after tightening the cap. Go figure.

Chulodee

I had the exact same problem and the cause was my battery was dying out! Once replaced, i never got it again.

GoHawks

I had the same thinghappen to me. THe EGRvalve was replaced along with all the injectors.

JCD

Hi. Both of my warning lights came on too...almost at the same time...suspiciously right after I hit 50,000 miles. (2005 RL)

I'm taking it to Acura dealer this week.

What should I expect them to do? SHould there be any cost associated with it?

Thanks.

deaddawg

This is happening to my car now. 2005 RL with 120k KM (~75k Miles) The SH-AWD light came on at the same time as the Check Emission light, but the SH-AWD turned off later.

I took it to the dealer, had to pay $120 and they told me I have to replace to o2 sensor. They also said it is not covered under my Acura Plus warranty.

The code on my printout says "CODE P2251 HO2S B1 SI VS LINE VOLTAGE HIGH"

I was quoted $273+tx for the o2 sensor and $96+tx for labour.

Does this sound right? Would it have anything to do with the injectors that I have read from here? Should this part be covered under Acura PLus (as well as this diagostics fee I had to pay)

Thanks.

azcohen

I have the same issue - 05 RL, 70K miles. My battery has been a little weak to turn over in this cold weather. Yesterday, my Check Emissions light came on, followed by the SHAWD light. I see in this thread that someone fixed it by replacing the battery - that may be a good fix for me. Let me know how yours was resolved.

deaddawg

My battery was replaced 4 months ago, so likely not the case. I am thinking I need to do the o2 sensor. Going to try fuel additives as a couple people have told me that has fixed it for these cars. If that does not work, I will replace the sensor.

azcohen

Interesting, I got this warning after I filled my tank with regular gas accidentally after only using super for an extended period. I'll fill with super next week or put in a fuel booster and see if that does the trick.

JCD

The dealer charged me $135 for diagnosis to tell me I needed all fuel injectors replaced...$915. I said the car's running fine...he said I might not pass emission inspection. I said I'll put up with the annoying lights on the dash and wait til I go in for my emission test in a year or so. If the car passes then I'll know this is a rip-off where the lights went on...NO problems with the car...but the dealer wanted to rip me off with some "repair" I did not need.

CFoote

The EGR/Fuel injector TSB referred to in this thread would only be triggered by a P0401 code. This code would show up in the Navigation display in your car.

http://www.in.honda.com/rjanisis/pubs/SB/B08-006.pdf

FYI, out of warranty this is about a 2k job....(labor included)

JCD

Thanks Mr. Foote. That info could prove to be very useful to me.

slainte_0317

Does anybody know if this is covered under the AcuraCare warranty? I had the same problem, both lights came on (CHECK ENGINE and SH-AWD) at the same time, then the SH-AWD went out and has not returned. Since the CHECK ENGINE is still on, I stopped by Autozone and had them scan it. P0401 EGR Insufficient flow is the only code showing. Sounds like TSB 08-006, but trying to figure out if it will be covered under the extended AcuraCare warranty.

slainte_0317

Looks like it should be covered: https://acurazine.com/forums/showthr...&highlight=egr

slainte_0317

As it turns out, everything was included under AcuraCare except the EGR ($220 + install). Unfortunately, according to the Serv Mgr, he thought it was covered until he was finishing up the paperwork and the system rejected. I guess I could dispute it since there was a TSB, but technically I don't think the EGR is covered under AcuraCare. Anyone have any insite on this one?

db22

I thought that emission control issues were a federally mandated 100k warranty?

azcohen

Does anyone have any definitive updates to this thread? Is there any harm in continuing to drive with my Check Emissions and SHAWD lights on? Will this cost me a boatload if I am out of warranty?

sidguevara

I will purchase the o2 sensor and take to my mechanic to fix. I think it's strange that the light comes on when I fill the gas tank and comes on when the gas level is mid-way.

deaddawg

I am having another problem causing this error now. The dealer says that I have to replace the EGR and Fuel Injectors. When they said neither were covered, I said that the Acura Plus websites says Injectors are covered but EGR is not. Here was the reply:

"That’s correct. It was explained to acura plus that the injectors state that they are cover components but under these circumstances it's not covered. The injectors haven't failed. They still operate within specification although they do need replacing Because the fuel injectors spray pattern now will create unwanted carbon buildup around the EGR valve Opening, which restricts the airflow. It is part of the repair procedure to replace the injectors which will improve the problem and prevent it from happening again."


How is it that the Injectors are malfunctioning and causing carbon build-up on the EGR, but that circumstance causes the Fuel Injector replacement to fall outside of the extended warranty coverage ? Something about that sounds wrong to me.

Any thoughts on how to proceed ?

azcohen

I just bit the bullet and did the repair last week - I could not find a reputable mechanic who would do it so I took it to the dealer. $1150 for an EGR valve and new injectors. The guy told me if I wait any longer, I might need new cat converter as well. He said nothing was covered. Tried to charge me $70 for an engine air filter - I asked him if he had a bridge to sell me too.

poppintec

dam dude it sounds like you got ripped off... thats a lot of money for injectors and egr valve, i did my injectors a while ago i don't remember what it costs but it was nowhere near that you need to find a good mechanic

slainte_0317

That is CR@P! You should fight it. The TSB says they need to replace the EGR and the injectors. So, if you have Acura Care, tell them you want the injectors replaced via the TSB (B08-006). I had mine done earlier this year. Paid for the EGR ($220).

luong47

My RL had the smog check yesterday.
After the 2000rpm idle for a couple of minute, the Power Steering warning light lit up.
When I restart , the warning light went off.
but I still have the power steering warning on the message
info.
I then made the 2000 rpr idle when the car is on P and see this waning light came out again after some time. It returne to normal after engine was restarted.
Any one had the same problem ?

MikePA

I know this is a really old thread but since I am sitting at my Acura dealer now and just got an explanation, I thought I share it.

Short Term Fix - Replace the EGR Valve - $220
Long Term Fix - Replace EGR Valve and Injectors - $800

Acura claims the reason the EGR Valve plugs up is because of the original injector spray pattern which the new injectors fix.

oo7spy

Usually the EGR valve can be remedied with a good cleaning and some WD-40. The carbon buildup can cause the valve to stick. It was common on 2G Legends, but the more troubling issue was the EGR pipe which was completely clogged with carbon buildups and was near impossible to remove with the engine in the car. I hope if I ever have to attempt that on Legend#2 it will be much easier to access the pipe.

Maintenanceman

Just got check engine light and SH-AWD warning today when went to pick up kids from daycare, terrible snow storm.
First came SH-AWD warning and then check engine.
I have that blue tooth dongle and autodoctor for diagnostics, it showed only P0401 Generic -powertrain
exhaust gas re circulation "A" flow insufficent detected
Couldnt clear the code.
Lets see how things go....

oo7spy

Someone here attested to the EGR valve and pipe being very easy to get to on the 4G Legend. I believe they said both are in front of the engine towards the top. Some carburetor cleaner will get all of your carbon buildup out, but before you do all that, how old is the battery?

Maintenanceman

Battery is about one year old.
I was low on fuel and decided to go and fill it, i took it about half full and i used also a bottle of "injector cleaner".
After that i drove a while with high rpm`s (4500rpm), something like 8km`s and came back home.
Now the ELM 327 manage to erase the code and it didnt come back.
Now i am keeping my fingers crossed...
Talked to my car mechanic friend and he said that one option is also to block those egr`s and they wont bother anymore, dunno about that.

oo7spy

Blocking the EGR is acceptable from a pure automotive functionality point of view. In fact, the EGR reduces performance by heating the intake. However, the car is designed to run with the EGR functioning because of environmental reasons. If it doesn't function, it has sensors galore to let you know. As part of the emissions system, and EGR code will throw the check engine light which will in turn adjust your ECU into a "limp" mode that will choke the emissions and kill your performance and MPG.

Bottom line, you need the EGR to fully appreciate your Legend. Cleaning it really is simple, especially if it's easily accessed.

Maintenanceman

I believe that you are right.
I wasnt sure that it would sense that blocking.
I e-mailed yesterday Honda Motor Europe Finland tech support guy about this, he said that Honda has not released any TSB about this problem in Europe or have had any warranty issues with it. He was also wondering that why those injectors should be changed.

Ian Honda Lim

Hi all,

I have a KB1 Honda Legend that is equivalent to the Acura RL in Singapore. The AFS, Check Transmission Light and the D (transmission indicator light) will come on after a long drive, but recently, it comes on even after a short drive.

The Singapore Honda dealer had resetted the ECU on 3 occasions and they mentioned that if it comes on again, they might have to check the wirings.

Have any of you met this problem?

HEAVY_RL

iTrader: (1)

welcome, whats the history on the car?

Modifications?
Accidents?
Anything?

oo7spy

A flashing D usually indicates an issue with the speed sensor in the transmission. Check your transmission mounts.