p1035 problems
Thread Starter
Joined: Nov 2008
Posts: 8
p1035 problems
HI, I AM NEW TO THIS BLAZER FORUM BUT I HAVE A 1998 BLAZER LT 4WD . I HAVE REPLACED 3 OUT OF THE 4 SENSORS AND THE SAME CODE OF P0135 KEEPS COMING UP AS A CHECK ENGINE LIGHT. I WOULD LIKE TO KNOW IF ANYBODY CAN HELP ME FIX THE PROBLEM......
RE: p1035 problems
Being that you have a 98, you only have 3 sensors. What drove you to replace all three of them though? I hope that a shop did not con you into replacing them.
P0135 = HO2S Heater Circuit Bank 1 Sensor 1
B1S1 is the driver side upstream sensor.
P0135 = HO2S Heater Circuit Bank 1 Sensor 1
B1S1 is the driver side upstream sensor.
This Diagnostic Trouble Code (DTC) determines if the HO2S is functioning properly. It checks for an adequate number of HO2S voltage transitions above and below the bias range of 300-600 mV This DTC sets when the Vehicle Control Module (VCM) fails to detect a minimum number of voltage transitions above and below the bias range during the test period. Possible causes of this DTC are:
* An open or a short to voltage on either the HO2S signal or HO2S low circuits
* A malfunctioning HO2S
* A problem in the HO2S heater or its circuit
* A faulty HO2S ground
This DTC determines if the HO2S heater circuit is functioning properly by monitoring the amount of time required for the HO2S to reach operating temperature. This DTC sets when the VCM fails to detect HO2S voltage transitions above and below the bias range within a specified amount of time. Possible cause of this DTC are listed below.
* An open circuit in either the HO2S ignition positive or the HO2S heater ground circuits
* An HO2S heater element problem
* An open or a short to voltage on either the HO2S signal or HO2S low circuits
* A malfunctioning HO2S
* A problem in the HO2S heater or its circuit
* A faulty HO2S ground
This DTC determines if the HO2S heater circuit is functioning properly by monitoring the amount of time required for the HO2S to reach operating temperature. This DTC sets when the VCM fails to detect HO2S voltage transitions above and below the bias range within a specified amount of time. Possible cause of this DTC are listed below.
* An open circuit in either the HO2S ignition positive or the HO2S heater ground circuits
* An HO2S heater element problem
Thread Starter
Joined: Nov 2008
Posts: 8
RE: p1035 problems
what made me replace all of them is because i had a code of p0147 and p0135. p0147 was senor 3 so i figured that if 1 and 3 are bad i'll just replace all 3. What drives me crazy is that when I clear the code i'll drive about 25 miles before it strikes on again. So what is there that I can do?.... Bad ground?
RE: p1035 problems
Ok, you did not state that... With more than one O2 sensor code, you really have to start looking at the wiring and grounds. It is VERY rare for two O2 sensors to go bad at the same time.
I am trying to get the diagnostic listing posted for both of these codes, but am having some difficulties. You need to see what is common between these two codes. Grounds would be one of them.
I am trying to get the diagnostic listing posted for both of these codes, but am having some difficulties. You need to see what is common between these two codes. Grounds would be one of them.
Thread Starter
Joined: Nov 2008
Posts: 8
RE: p1035 problems
I DID NOT FIND ANYTHING IN THE WIRES NEAR THE SENSORS SEEMS TO ME ALL WIRES GOING TO THE CLIP AND SENSOR LOOKS GOOD AND HAVE NO CORROSION OR ANYTHING. SO IN OTHER WORDS, CAN I GROUND THE O2 SENSOR MANUALLY BY MAKING A GROUND WITH ANOTHER WIRE?.......
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upblazer95
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Apr 4, 2009 08:27 PM
