98 C5 - get codes without DIC

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Feb 24, 2018 | 11:16 AM

#41

ant-knee470

Thread Starter

Burning Brakes

Joined: Mar 2009

Posts: 944

Likes: 11

From: Davie Florida

Latest update guys,

CEL came back on...
Here's a list of new codes after the new o2 sensors were put in..

10 PCM - 5 Codes
PO141 HC
PO153 HC
PO161 HC
PO327 C
PO332 C

28 TCS - 1 CODE
C 1241 HC

38 RTD - NO CODES

40 BCM - 3 CODES
B 2721 H
B 2722 H
B 2723 H

58 SDM - NO COMM.

60 IPC - NO CODES

80 RADIO - NO CODES

99 HVAC - NO CODES

A0 LDCM - 1 CODE
U 1064 H

A1 RDCM - 1 CODE
U 1064 H

A6 SCM - NO CODES

B0 - RFA - NO CODES

From what I can gather it saying the rear o2 sensors are not working more or less.. Looks like the knock sensor codes are back to..
Where should I go from here.. Do I replace the rear o2 sensors or should I start with the knock sensors..

Thanks all,

Ant...

Last edited by ant-knee470; Feb 24, 2018 at 11:47 AM.

Feb 24, 2018 | 11:46 AM

#42

ant-knee470

Thread Starter

Burning Brakes

Joined: Mar 2009

Posts: 944

Likes: 11

From: Davie Florida

[QUOTE=lionelhutz;1596661055]Continuity check the bad ones. If the continuity between the sensor negative wire and the case doesn't exist then post up a warning for that brand so others know they don't work and why.[/QUOTE

Just did a continuity test, And they have no continuity...
I got them on e-bay...

New Premium High Performance O2 Oxygen Sensor Chevrolet GMC Vehicles GA24012

Hope this helps

Ant...

Feb 26, 2018 | 06:16 AM

#43

ant-knee470

Thread Starter

Burning Brakes

Joined: Mar 2009

Posts: 944

Likes: 11

From: Davie Florida

Did some poking around in the engine compartment and found the pcv valve tubing is deteriorated and leaking vacuum, Not sure if this would cause any codes... I ordered new tube, will be in mail in next couple days... I think I am going to order the two rear o2 sensors next.. I know the PO did no kind of maintenance to the car what so ever so it can't hurt..

Not sure why this code showed up:

P0153 Heated Oxygen Sensor (HO2S) Slow Response Bank 2 Sensor 1 , This sensor is new... Could it be defective?
I will unplug it and check the wiring to that sensor again..

Any other thoughts

Thanks,

Ant...

Last edited by ant-knee470; Feb 26, 2018 at 06:26 AM.

Feb 28, 2018 | 12:41 PM

#44

ant-knee470

Thread Starter

Burning Brakes

Joined: Mar 2009

Posts: 944

Likes: 11

From: Davie Florida

Hello Again all..

Just ordered 2 used rear OEM o2 sensors for a test ( B-4 I spend 300.00 at the steelership ).. After changing the front o2 sensors I got the new codes shown above... First set of codes said front o2 sensors were not functioning.. then after swapping out the front two I cleared codes and CEL came back on saying the rear o2 sensors were not working.. Kind of weird that first set of codes said front o2 sensors then it switch to the rear o2 sensors... I don't understand why I did not get the code for the rear sensors when I first pulled the codes,, Why only after I swapped the fronts??? I bought the front o2 sensors at advanced auto and The guy told me they are oem sensors ( DENSOS ) ..

Thanks All,

Ant...

Last edited by ant-knee470; Feb 28, 2018 at 12:44 PM.

Feb 28, 2018 | 10:31 PM

#45

ant-knee470

Thread Starter

Burning Brakes

Joined: Mar 2009

Posts: 944

Likes: 11

From: Davie Florida

WOOOO WHOOOOO

2 codes left and that CEL is gone baby.... Got off of work and said let me try and clear the codes and reset the computer again WTH... Cleared them and took the car for a ride, Went on about an hour ride, came back and checked the codes.... Looks Like ill be pulling the manifold this weekend..

10 PCM -2 Codes

PO327 C - Knock Sensor (KS) Circuit Front
PO332 C - Knock Sensor (KS) Circuit Rear

Ant

Last edited by ant-knee470; Feb 28, 2018 at 10:35 PM.

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