p0133

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Jul 17, 2009 | 11:45 PM

woopt

Thread Starter

New Member

Joined: Jul 2009

Posts: 9

p0133

Got code p0133 had other codes pointing to upstream o2 sensor. replaced sensor several time still get low reading at o2 sensor. Slight rough idle in gear when stopped. Run smooth in park and neutral.

Any suggestions

Tom 99 Blazer 4.3 2wd 4d

Last edited by woopt; Jul 19, 2009 at 04:35 PM. Reason: not getting a correct response fo my guestion

Jul 18, 2009 | 02:42 PM

wolfen

New Member

Joined: Jul 2009

Posts: 57

thats for the obd 2 systems right? Cause all I do in mine is jumper A and B, flip the ing switch to run and count the light flashes, then compare them to the book,

Jul 19, 2009 | 04:37 PM

woopt

Thread Starter

New Member

Joined: Jul 2009

Posts: 9

not sure you understand my guestion

got code p0133 had other codes pointing to upstream o2 sensor. replaced sensor several time still get low reading at o2 sensor. Slight rough idle in gear when stopped. Run smooth in park and neutral.

Any suggestions

Tom 99 Blazer 4.3 2wd 4d

Last edited by rriddle3; Jul 19, 2009 at 05:45 PM. Reason: Cleaning Up Double Posts

Jul 19, 2009 | 05:56 PM

rriddle3

BF Guru

Joined: Dec 2006

Posts: 6,594

From: Fort Worth,Texas

I have combined your posts on this issue. Please do not double post since it is against Forum rules.

Jul 19, 2009 | 06:43 PM

cc4usa

New Member

Joined: Jul 2009

Posts: 97

From: Helper,Utah

code p0133 refers to the 02 sensor circuit responding slow on bank 1 sensor 1
1st 02 sensor is responding slow check wiring to sensor for low voltage.