bma4406

Egr Valve Cleaning

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Can anyone direct me or help me with detailed instructions on cleaning the EGR Valve on a 1996 Acura TL.

I don't know very much about the car, I have a jeep cj. So any help is appreciated with locations of all the components.

Thanks

ALso does anyone have a diagram of where the different O2 sensors are located?

TexasHonda

Do you have a 2.5TL or 3.2TL?

regards

bma4406

3.2 TL.

Thanks

DJRamzy

Hmm this thread could be of interest to me.... subscribing.....

bma4406

Yea I am gettting the check engine light with a EGR code and O2 sensor,
sensor 1 bank 2 or vice versa, I have to go back and look, still need to know which one is which.

TexasHonda

Post codes and I'll try to help. Some codes such as "insufficient EGR flow" don't necessarily mean the EGR is blocked, but may indicate the EGR distribution manifold is blocked. O2 sensors are similar. Some can indicate faulty sensors, and others indicate possible fuel delivery problems or air metering problems.

good luck

bma4406

Ok,

WIll Do, I have to go out of town, but will get the actual codes when I return.

I had the local Radio shack pull the codes for me, showed some type of EGR code, and those baby's are quite expensive. I wanted to try the cleaning of the EGR route first.

Just some off the research on this forum, that seemed to be the first option.

Thanks

bma4406

Radio shack ...................... what am I talking about

Meant to Say Auto Zone!

Ken1997TL

Do you live in the US? Have under 150,000 miles?

If so, you can get your sensors replaced for free. Its part of an EPA mandated warranty.

ELA.TL

yup.. just got mine done this week due to engine light going on. With the replacement I also got free spark plugs, ignition coils,oil change, oil filter and a free car wash (that was real cool)

You can call the dealer and have them run your vin. just make sure they dont offer you some other BS as they will try and say its not that or some other BS.

Good Luck

bma4406

We tried to have the deal fix it, with the recall.

We had 151,430 miles at that time and they would not complete the repair.

THe were complete a- holes.


I got my codes if anyone can help.

1. P0141 - 02 Sensor - Bank 1 Sensor 2

2. P0401 - EGR Insuficient Flow

Thanks

TexasHonda

P0141 means the heater circuit on the O2 sensor aft of the catalytic converter is likely out. It could mean wiring, connector, or ECU problem but most likely the heater element simply burnt out. If you check the correct wires w/ VOM you should measure open circuit (infinite resistance). A new O2 sensor is necessary. Check ebay for best deals.

P0401 is insufficient EGR flow. This most likely means the EGR manifold ports are partially or completely blocked, or EGR valve is blocked. The valve is working electrically, but low or no flow is being detected.

good luck

ELA.TL

If there is another dealership around your area.. try going to another one. They might be able to help you out. Some of them dont know. Is the limit 150k miles??? I am not sure about that one, mine had 124k.

Good Luck

bma4406

So Texas Honda,

Can I clean the EGR Valve?

Or just replace it?

Will a chiltons manual explain the process to replace the o2 sensor and the EGR Valve?

Thanks for the info.

bma4406

Also,

Bank 1 Sensor 2 - This is not the sensor in the engine compartment right?
This is the sensor close to the c. converter?

what is the general location of the EGR Vavle?

TexasHonda

In my experience, I've never seen a blocked EGR. It's always the EGR passages or the EGR manifold. If you bridge a vacuum line directly from TB vacuum source to the EGR and it causes a stumble or engine speed increase, you know the EGR is opening.

The design of the valve makes it very difficult to clean mechanically. You can only spray throttle body cleaner and blow air through the EGR. The EGR manifold and passages can be disassembled and cleaned.

Not familiar w/ Chiltons manuals. Haynes generally covers this so Chilton's probably does also.

Bank 1, Sensor 2 is the sensor behind the catalytic converter.

EGR valve is usually on back side of engine mounted behind the intake manifold. Your Chiltons should have this location.

good luck

bma4406

Thanks Texas Honda,
Lots of good info. I am going to get the manual as well.

bma4406

OK<

I got the EGR cleaned up...... whoa I could not beleive all the crap in the EGR system


How the hell do I access the o2 sensor behind Cat?

Go90go

You have to un-bolt the cat from the Y-Pipe and angle it down. Support the cat with a stand so you don't bend your piping. Un-bolt the shield for the wiring as well so you have some working length.

~Cheers~

bma4406

ok,

I am un bolting the front of the cat?

The bolts have springs on cat side right?

How far can I drop it down?

I am working off of ramps and a floor jack!

THanks
Brad

bma4406

Disregard the question.
I had a shop replace the sensor for me.

Carter31

Yes i live in the US and yes i have under 150,000 so now what... do i just call the dealership and tell them that my check engine light came on and they need to replace my sensors and spark plugs or what?

bma4406

just bring it in, tell them you have check engine light.
They are supposed to fix anything that is setting the C E L off.

seattle dale

ok, WTF. Why is the Stealer tellin me, the only thing warrantied after 50,000 miles on my 2003tls is the tranny. They tell me the only year that extended the warranty, to 80,000 on the egr valve is the 99tl. So are they feeding me a line of bull shit. When you say the epa mandates that they warranty to 150,000 are you talking about the egr valve? I have my car @ the Stealer as we speak, with my VSA & engine light on, the guy told me, minimum of $99.00 to look @ my car. If you could can someome respond fast, Picking up my car tomorrow. Thanks in Advance

KADAW

I think everyone here is talking about the 96-99 tls.. right? and yours 2003?

and i dont want u to think im posting as an a$$,
just trying to get it stright, cuz i think what is coverd for is only the 96-99 tls...

seattle dale

opps, just did a search & this was right up my alley, didn't realize i went to 1st generation. But saying that if the epa is involved, would that not apply to all our cars?

KADAW

thats aite,

well now that i got that clear, lol iono how to help u cuz i though it was just for the 96-99.. maybe some one will chime in with more info goodluck

seattle dale

Thanks mang, I need help fast, a link or something to show to the stealer tomorrow, b4 they try to hose me!

Carter31

i brought my car in and they said it's not under warranty only the 95 and 96 and not 97-98

seattle dale

Thats funny the fuc*in dealer told me only the 99tl was warranteed to 80K; WTF!!! So i wonder who the hell is tellin the truth?

KADAW

ahh sh*t, in all my post here it should have said 96-98 lol im making things more f-up then helping imma get out of here lol

seattle dale

think i found the link, but seems pretty complex. At least i'll have something to show to the stealer tomorrow., After the rep gave me a line of bullshit. Here it is


http://www.epa.gov/otaq/consumer/warr95fs.txt

racerock

Pull out the warranty book from your glove compartment. It clearly identifies exactly how long your federal emissions warranty is. It changes year to year. If you don't have it, do a search on line, and there are places that track it.

racerock

Just cleaning the EGR will not necessarily correct the low flow. I believe that on mine, they had to remove the crossover and clean it and the heads out.

BTW, started my repair by cleaning the EGR and what I could in the crossover. Helped at first, and then, believe it or not, got worse. That is when a trip to a friends friend at the dealer was made...

bma4406

Yeah,

Once the computer reset, it still gave me the egr flow.

Well 274 later the dealer recleaned it.

just passed this morning finally.