Meaning of OBD2 codes

On this 98 Honda I have been working on I get several "bank 1, sensor
1" codes. What does "bank 1" mean?

this is a 4 cyl.

Example is a code 0171 system too lean bank 1 sensor 1, and 02 sensor,
bank one sensor 1, etc.

 

From http://www.findarticles.com/p/articles/mi_m0BQA/is_4_81/ai_85283493 :
_____
Bank 1 is always the Bank where cylinder #1 is, in this case, the driver's side
(left) bank, and Bank 2 is the opposite (right) bank. After the point where the
pipes meet, everything is Bank 1.

Now, as for counting 02 sensors, one is located by the left exhaust manifold,
which is Bank 1, Sensor 1 (scanner shows "B1-S1"). Moving back, the sensor in
front of the catalytic converter after the Y-pipe is Bank 1, Sensor 2. After the
Y, it's all Bank 1, but we still count the sensor in the manifold as 1. So now
the sensor behind the catalytic converter is Bank 1, Sensor 3 (scanner shows
"B1-S3").
_____

Googling for {0171 codes Honda}might provide still more insight to your car's
problem.

 

On 3 Aug 2004 10:58:27 -0700, (Don) wrote:

||On this 98 Honda I have been working on I get several "bank 1, sensor
||1" codes. What does "bank 1" mean?
||
||this is a 4 cyl.

Caroline
The OBDII codes are meant to be universal. You still have Bank 1, even if
it's the only bank. If you had a VW with the W8, I guess there might be a Bank 3
and Bank 4.


Texas Parts Guy

 

Yes, I follow. I didn't want to clutter up my previous post. I figured it would
be clear than many cars of course have a single bank but OBD II "doesn't care."

I should add that I think the 1998 Accord has a MAP (manifold air pressure)
sensor, not an MAF (mass air flow) sensor. So the original poster might be
looking at replacing it or seeking leaks in its vicinity for his car's fuel trim
and lean problems.

Again, I write this as an amateur's guess, based merely on some searching on the
'net and personal curiosity.