rushabh21

Hi,
I recently replace O2 (front) oxygen sensor and EGR valve for my 2001 Honda Accord LX V4, VTECH ULEV.
Check Engine light showed me 3 codes. p1166, p1167 and p1491
First 2 refers to replacing front O2 sensor and the last one on EGR valve lift insufficient. You will find many forums talking about these issues with Honda Accord V6 2000 to 2003 model.
EGR Valve replacement was not enough. The passages need to be cleaned as well.
My situation was little different.
So I got codes from Jiffy Lube and then Autozone and then asked Honda Dealer. Dealer asked for $99 diagnostics. I told them, that I have run the codes at multiple places and I know the issue. You tell me how much will it cost to fix the check engine light.
They agreed for a $50 diagnostics. I got that done and found out the part numbers to be replaced for fixing these codes.
Part Numbers:
oxygen sensor Front 36531-PAA-306 or Denso 234-9014
EGR Valve: 18011-PAA-A00

Estimates from Bill Page Honda Dealer in Falls Church, VA
O2 part $341.35
labor $145.50
total $487
EGR part $184
labor $388
total $572

I didnt want to spend $1100 at honda dealer.

So I went out and researched online.
Bought the parts from
https://www.hondapartsnow.com
Cost was
EGR = $122
O2 Sensor Front = $218
Total with Shipping = $360

Already saved $167 against Honda Quote
Now replacing O2 sensor is very easy. Since its in the front you can do it yourself. My case, the sensor was jammed and I didnt want to risk it so went for a service station.

Then found a good service station in Vienna, VA.
Address to that service station:
Schmitz Exxon Service, Inc
8526 Leesburg Pike Vienna, VA 22182-2405

They replaced the 2 parts and cleaned the EGR Valve passages for $168. The passages in 2001 V4 ULEV were not so difficult to clean, it seems.

Again saved $365.00 against Honda Dealer.

So total cost to me was
$50 for Diagnostics +
Parts $360 +
Labor $168
= $578.00

Hope this information helps you all!

phootbag

I see no problem charging an hour of labor to diagnose 2 DTC's. Actually, that seems like a pretty good deal.

dajuad

I just had this problem and was wondering just where this air fuel ratio sensor and the oxygen sensor are located? Is there a photo or diagram?

dajuad

rushabh21

https://honda-tech.com/forums/honda-accord-1990-2002-2/how-determine-o2-sensor-bad-2670079/

This link has the picture..Of both.

361 accord

well, "the honda dealership" is always going to be the most expensive place for parts and service

i know you tried, but you could have replaced that front sensor yourself

drive around some and then spray some PB blaster on the threads, give it a few minutes and spray it a little again, go rent a special O2 sensor socket and maybe a breaker bar

you gotta use either that special socket or use a regular wrench, try the closed-end first since the open ends are more likely to slip off or round the corners

overkill method
1.remove heat shield so your wrench gets full contact on the nut
2.go drive around some
3.spray PB blaster on the threads of it before you even bother trying to take it off
4.take off the connector and feed it and the wires through a box-end wrench
5. take if off, if you need more power, stick another wrench on the open-end of the wrench you are already using
6. put some anti-seize on the threads of the new one and put everything back

dajuad

Where is the Oxygen sensor located?

dajuad

Let me repeat the question: a diagram was provided showing the air fuel ratio sensor
https://honda-tech.com/forums/showthread.php?t=2670079. However, where is the oxygen sensor located.

poorman212

air fuel, O2 sensor, lambda-what ever you want to call it......The spark plug looking thing with wires....

From Wiki:
"An air-fuel ratio meter monitors the air-fuel ratio of an internal combustion engine. Also called air-fuel ratio gauge, air-fuel meter, or air-fuel gauge. It reads the voltage output of an oxygen sensor, sometimes also called lambda sensor, whether it be from a narrow band or wide band oxygen sensor."

phootbag

An Air Fuel sensor uses electrical current differential to send feedback to the ECM. Oxygen sensors use a voltage signal to send feedback to the ECM. Typically, in the newer Honda's, the Air Fuel Ratio sensor is the primary sensor. The secondary sensor is still a typical oxygen sensor.

rushabh21

As I mentioned, the O2 sensor in front was not an east task to remove. Thus paid for this work.

kidcool1977

I think rockauto.com is even cheaper then OEM online honda dealers.