|
|
Amber13037
New User
Oct 28, 2019, 6:00 AM
Post #1 of 7
(2809 views)
|
FREEZE FRAME
|
Sign In
|
|
2006 Chevy Malibu LT 4 cyl. Is coding P0420 and is giving me a freeze frame reading that I have not a clue how to read but would like to make my own repairs. I have already replaced 02 sensor and cat. Converter. I do have an exhaust leak but is that the actual reason for the code?
DTCFRZF P0420
FUELSYS1 OL
FUELSYS2 NA
LOAD_PCT% 16.5
ETC. 189 F
SHRTFT1 0.0
LONGFT1 0.0
MAP (inhg) 11.2
RPM ( /min) 776
VSS (mph) 0
SPARKADV 2
IAF (F) 54
MAF (lblmin) 0.533
TP (%) 27.1
If anyone can help me read this to tell me what the possible issue is I would greatly appreciate it!
(This post was edited by Amber13037 on Oct 28, 2019, 6:44 AM)
|
|
| |
|
|
Hammer Time
Ultimate Carjunky
/ Moderator
Oct 28, 2019, 6:39 AM
Post #2 of 7
(2805 views)
|
None of that stuff really matters in this situation.
The P0420 means that your bank 1 or only Catalytic Converter is no longer doing it's job. In order to set this code the rear 0/2 sensor and the upstream 0/2 sensor have to mirror each other for a period of time meaning there is no chemical change after passing through the Cat. 99% of the time, this is a bad Converter. The other 1% it can be caused by an air leak between the two sensors, very rare.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
|
Amber13037
New User
Oct 28, 2019, 6:47 AM
Post #3 of 7
(2798 views)
|
I’ve replaced all three what are the odds of a bad 02 sensor?
|
|
| |
|
|
Hammer Time
Ultimate Carjunky
/ Moderator
Oct 28, 2019, 6:50 AM
Post #4 of 7
(2796 views)
|
Replaced all 3 what?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
|
Tom Greenleaf
Ultimate Carjunky
/ Moderator
Oct 28, 2019, 7:15 AM
Post #5 of 7
(2792 views)
|
Quote from top ">I do have an exhaust leak <"
How about fix that first then deal with codes?
T
|
|
| |
|
|
Amber13037
New User
Oct 28, 2019, 7:45 AM
Post #6 of 7
(2785 views)
|
Both 02 sensors and the cat converter
|
|
| |
|
|
Hammer Time
Ultimate Carjunky
/ Moderator
Oct 28, 2019, 8:25 AM
Post #7 of 7
(2777 views)
|
As I stated in my first answer, an exhaust leak is one of the things that will cause that code. It introduces oxygen that corrupts the sensor readings.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
|
|
| |
|
Auto Repair Home
SEARCH
WHO'S 
LOG 
1989 toyota pickup 3.0 crank no start
Please Help - Knock sound & engine fail
