P0420 After Spraying Throttle Body - Page 2 - JeepForum.com
 1Likes
Reply
 
LinkBack Thread Tools
post #16 of 25 Old 09-18-2019, 11:37 AM Thread Starter
Billbo1970
Registered User
2009 WK 
 
Join Date: Mar 2014
Location: Greenlawn
Posts: 79
Quote:
Originally Posted by jtec View Post
Also silicone is a sensor killer.
Even if it's not touching the sensor? It was applied to the no-fouler, allowed to dry & cure 24hrs, and then a second no-fouler in-between to act as a buffer protecting the sensor.


Regards,
Bill

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Billbo1970 is offline  
Sponsored Links
Advertisement
 
post #17 of 25 Old 10-01-2019, 03:47 PM Thread Starter
Billbo1970
Registered User
2009 WK 
 
Join Date: Mar 2014
Location: Greenlawn
Posts: 79
Quote:
Originally Posted by jtec View Post
the voltages pre and post cat are needed to work this code.
Ideally the pre and post voltages are graphed and stacked for comparison.

My thinking if the pre cat are HIGH the post cats might not show improvement ...
With the sensor plugged it COULD not show a acceptable voltage sweep.
@jtec

No more cat related codes (P0420/0430) and the only code that keeps popping back up is P2271 Bank 1 Sensor 2 Rich. Finally got my new scan tool. Here are the screens, I have no idea what this data means!

DTC: P2271
FUELSYS1: OL-Drive
FUELSYS2: OL-Drive
Load Pct: 85.1
ECT: 203oF
SHRTFT1: 0.0
LONGFT1: 0.0
SHRTFT2: 0.0
LONGFT2: 2.3
MAP (inHg): 24.8
RPM (/min): 1785
VSS (mph): 60
SPARKADV: 9
IAT: 66 oF
TP: 28.6%
RUNTM (sec): 408
EGR_PTC: 0.8%
EGR_ERR: 0%
EVAP_PCT: 0
FLI: 37.6%
BARO (inHg): 29.6
VPWR (V): 14.252
LOAD_ABS: 71.1%
EQ_RAT: 0.999
TP_R: 18%
AAT: 64 oF
TP_B: 28.6%
APP_D: 9.0%
APP_E: 4.3%
TAC_PCT: 1.6%







Thanks in advance!!
Attached Thumbnails
20190928_081623.jpg   20190928_081634.jpg   20190928_081647.jpg   20190928_081657.jpg   20190928_081709.jpg  


Regards,
Bill

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Billbo1970 is offline  
post #18 of 25 Old 10-01-2019, 04:27 PM
jtec
Registered User
 
jtec's Avatar
2014 JK Wrangler 
 
Join Date: Oct 2017
Posts: 6,761
P2271-O2 SENSOR 1/2 SIGNAL STUCK RICH

you did remove the anti foulers? recheck the plug in connector at o2 sensor. If there was no issue before the anti foul adventure - I would now suspect the o2 sensor is bad.

When I see the price of OEM I think aftermarket.
When I see the quality of aftermarket I think OEM.
jtec is offline  
 
post #19 of 25 Old 10-01-2019, 05:17 PM Thread Starter
Billbo1970
Registered User
2009 WK 
 
Join Date: Mar 2014
Location: Greenlawn
Posts: 79
Quote:
Originally Posted by jtec View Post
P2271-O2 SENSOR 1/2 SIGNAL STUCK RICH

you did remove the anti foulers? recheck the plug in connector at o2 sensor. If there was no issue before the anti foul adventure - I would now suspect the o2 sensor is bad.
@jtec

Just so I can learn, which elements on the read out lead you to this conclusion?

Regards,
Bill

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Billbo1970 is offline  
post #20 of 25 Old 10-01-2019, 05:23 PM
jtec
Registered User
 
jtec's Avatar
2014 JK Wrangler 
 
Join Date: Oct 2017
Posts: 6,761
with scanner look at freeze frame - and then look at o2 sensor voltages - compare B1S2 to B2 S2 see if they are stuck rich... not sweaping back and forth.. suspecting the 1/2 is fixed with little sweep and -


reading the trouble tree , none of the other causes applied - thats why I asked with no issue before anti foulers used, and be sure to check o2 connector for damage- bent pins ect. and a foot note about contaminated o2 sensors and sealant which seamed likely to apply.

When I see the price of OEM I think aftermarket.
When I see the quality of aftermarket I think OEM.
jtec is offline  
post #21 of 25 Old 10-01-2019, 05:27 PM Thread Starter
Billbo1970
Registered User
2009 WK 
 
Join Date: Mar 2014
Location: Greenlawn
Posts: 79
Quote:
Originally Posted by jtec View Post
reading the trouble tree , none of the other applied - thats why I asked with no issue before anti foulers used, and be sure to check o2 connector for damage- bent pins ect. and a foot note about contaminated o2 sensors and sealant which seamed likely to apply.
@jtec

Is it possible I received a bad O2 sensor right out of the gate? How likely or unlikely is that? I think I will try swapping the O2 sensors on Bank 1/2 sensor 2 and see if the DTC switches to the other bank. Is that a logical troubleshooting step?

Regards,
Bill

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Billbo1970 is offline  
post #22 of 25 Old 10-30-2019, 04:04 PM Thread Starter
Billbo1970
Registered User
2009 WK 
 
Join Date: Mar 2014
Location: Greenlawn
Posts: 79
@jtec

Well the weather and my schedule have finally provided an opportunity for me to tackle this again. I've replaced Bank-1 Sensor-2 with a brand spanking new NTK CARB compliant O2 sensor. Just to confirm, Bank1 is driver's side right? I'm getting P0420 & P0130A codes now... photos attached.
Attached Thumbnails
20191026_111042.jpg   20191026_111053.jpg   20191026_111104.jpg   20191026_111116.jpg   20191026_111128.jpg  


Regards,
Bill

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Billbo1970 is offline  
post #23 of 25 Old 10-31-2019, 02:02 PM
jtec
Registered User
 
jtec's Avatar
2014 JK Wrangler 
 
Join Date: Oct 2017
Posts: 6,761
need to address sensors issues before CAT code. GIGO

Are you sure the code is not P013A ? referance TSB - # 18-010-10 REV. A

Yes left side (driver) is B1.

When I see the price of OEM I think aftermarket.
When I see the quality of aftermarket I think OEM.
jtec is offline  
post #24 of 25 Old 10-31-2019, 04:28 PM Thread Starter
Billbo1970
Registered User
2009 WK 
 
Join Date: Mar 2014
Location: Greenlawn
Posts: 79
@jtec

Thanks for the response! Yes it is P013A on my fancy new scanner & P0130 on my old one (I still use it because it reads faster LOL). By GIGO do you mean Garbage in/out? You are dating yourself my friend! LOL

Just Google'd that TSB, a PCM reprogram... that's odd, never had this code before changing the sensors. I assume this is a dealer only job? Is it something that should be free since there's a TSB on it?

Bill

Regards,
Bill

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Billbo1970 is offline  
post #25 of 25 Old 11-01-2019, 08:30 AM
jtec
Registered User
 
jtec's Avatar
2014 JK Wrangler 
 
Join Date: Oct 2017
Posts: 6,761
Yes I am dated - I still have a point file. In my posts I often use old terms, names for parts (ALDL) - what can one say training and years.

A s far as not seeing code before - have you had that scanner on jeep before-
A TSB is not a freebie warranty concerns are often posted in the fine print last paragraph of TSB - did you see a copy?


you will want to look at o2 sensors esp the B1S2* that is post cat and compare to pre cat.


* this is the reference in TSB - SO is it behaving as TSB alluded to?
Also look at freeze frame for that code,

Will pick up on the post later - mean time ck for exhaust leaks.
any exhaust leak.

When I see the price of OEM I think aftermarket.
When I see the quality of aftermarket I think OEM.
jtec is offline  
Reply

Tags
catalytic converter , p0420 , throttle body

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome