okay i basicly i failed my emmisions, i got a 96 civic dx with a b20b motor non vtec, 96-99 acura ls ecu, obd 2, and hre are the fault codes:

overall obd result: fail
fault code result: fail

fault codes: po171, po141

*po141: o2 sensor heater circuit mal function (bank 11 sensor2)

*po171: system too lean (bank 11)

the one im worried abotu right now is the o2 sensor 1, also my check engine lights not on too

plz tell what u think it might be replace sensors or what else?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B20runner &raquo;</TD></TR><TR><TD CLASS="quote">

*po141: o2 sensor heater circuit mal function (bank 11 sensor2)

*po171: system too lean (bank 11)

plz tell what u think it might be replace sensors or what else?

</TD></TR></TABLE>

Did you splice a new O2 sensor in or anything? Likely your o2 sensor failed and now you need a new one. Also not reading correctly and causing you to lean out? :\

 

what u mean splice i havnt doen anything yet

 

not sure what u mean :?

 

Is it an OEM original o2 sensor!? If it is, just replace it, its obviously malfunctioned on you and needs replacing.

Ok, what I'm really trying to say is..........your o2 sensor is dead and you need a new one.

In other words..................replace the o2 sensor.

 

o ok i think it is oem whats a good o2 sensor to get, what brand?

non oem?



Modified by B20runner at 2:37 PM 3/14/2005

 

id go oem. got mine off ebay from sparkplugsource i think and it cost me only 60 dollars i think after shipping

when 02 heater sensor is fried like what happened to me, it throws a code, mine ran extra rich tho... check engine light should have come on... use a paper clip and read ur codes anyway.

 

plz explain this way using a paper clip to read

 

and theres 2 o2 sensors right should i buy both?

 

passenger side kick panel... remove the plastic cover, u will see a 2 wire plug (right beside the ECU), use a paper clip or wire and stick it in both sides, connecting it, or u can buy an expensive harness to do the same thing

then turn ur car to the on position without starting it. watch the CEL to see if there are any codes present.. sometimes u will have codes even tho ur light is not on

 

well, if it already told u that it was sensor 2, when u had ur emissions done, replace the second one, and that should fix it

 

ok ty