1998 S70 won't pass Ca smog high NO
I recently purchased a 1998 S70. I took it in today to have it smogged for transfer of ownership and it failed because of high NO. Here are the readings:
15mph:
co2% 15.3
o2% 0
Hc:
Max 54
Ave 9
Meas 2
Co%:
Max 0.50
Ave 0.02
Meas 0.03
NO
Max 430
Ave 57
Meas 543 Fail
25mph:
co2% 15.3
o2% 0
Hc:
Max 37
Ave 7
Meas 1
Co%:
Max 0.47
Ave 0.03
Meas 0.02
No
Max 717
Ave 50
Meas 479
I'm thinking it's the oxygen sensors but would like to get some other opinions before spending $350+ on parts. Thanks for your help.
15mph:
co2% 15.3
o2% 0
Hc:
Max 54
Ave 9
Meas 2
Co%:
Max 0.50
Ave 0.02
Meas 0.03
NO
Max 430
Ave 57
Meas 543 Fail
25mph:
co2% 15.3
o2% 0
Hc:
Max 37
Ave 7
Meas 1
Co%:
Max 0.47
Ave 0.03
Meas 0.02
No
Max 717
Ave 50
Meas 479
I'm thinking it's the oxygen sensors but would like to get some other opinions before spending $350+ on parts. Thanks for your help.
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biodan
Intake, Headers and Exhaust
5
May 28, 2007 10:19 PM




