Hi, I got the following on getting my 98 Accord (EX 4 Cylinder) check engine light read at an autozone:

At the top, it says:

"... Most likely solution is Replace Engine Control Module (ECM)"

Followed by:

"Definition
p1164 - The PCM detected the heated oxygen sensor 1 signal did not switch (remained ? lean ?) for a predetermined period of time"

"Error Codes Read
P1166 HO2S (B1) (S1) Heater Failure
P1167 HO2S S1 Heater Failure"

Kindly suggest next steps. Is this going to be costly to repair ?
The check engine light has been ON for some time (is not going away by detaching the battery etc), and I am not going to pass the smog test with it. I need to get the Smog passed within 4-5 days.

Should I try to get this repaired (what exactly needs to be repaired ? and what would be a cost estimate ?) ? California has a cash for clunkers that can probably get me $ 1000 for the car. The KBB value for the car would be about $ 1400 or so I think.

Thanks a lot for your help.

 

I don't understand why the printout says likely PCM, because the actual problem may not be the PCM.

The P1166 and P1167 point towards a problems with the heating element in the primary O2 sensor. These codes can come from a bad O2 sensor, a wiring/electrical issue, or a bad PCM.

Odds are the O2 sensor needs replaced, but I recommend troubleshooting to figure out the problem.

Do you have a volt meter? Do you know how to test for power on a wire and ground?

 

Also, I think P1166 & P1167 only apply to the F23A4 ULEV engine. So another possibility is the O2 sensor was mistakenly replaced with the corresponding sensor from a non-ULEV engine.