Got the code P0420 - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
 
Thread Tools
#1 Old 01-04-2009, 05:04 PM
MeenGreen5.2
i'm blue :D
 
MeenGreen5.2's Avatar
 
Join Date: Apr 2007
Location: North Las vegas, NV
Posts: 3,444
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Got the code P0420

catalyst efficiency low-bank 1

i just ordered up a new high-flow y pipe/ cat off of ebay.... i hope its the cat and not the sensors

2010 dodge ram 5.7 sport
deep water blue pearl
BLUE
24"verde rims
stock



BLUE TRUCK CLUB MEMBER #249
Trucks and Guns member #164
MeenGreen5.2 is offline  
Sponsored Links
Advertisement
 
#2 Old 01-04-2009, 07:24 PM
MeenGreen5.2
i'm blue :D
 
MeenGreen5.2's Avatar
 
Join Date: Apr 2007
Location: North Las vegas, NV
Posts: 3,444
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
this thing should bolt right up right?

2010 dodge ram 5.7 sport
deep water blue pearl
BLUE
24"verde rims
stock



BLUE TRUCK CLUB MEMBER #249
Trucks and Guns member #164
MeenGreen5.2 is offline  
#3 Old 01-14-2009, 08:44 PM
PMickey
Mother Mopar
 
PMickey's Avatar
 
Join Date: Oct 2008
Location: Greenville
Posts: 504
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Im havin the same trouble. I got a new hi-flow Cat about a month ago and about 2 weeks after I got it that code "P0420" caused my Check Engine Light to come on. So in hopes that the computer just needed to "relearn" the change, I reset the computer. It went about a week and a half and the light came back on. So for the last two days Ive been trying to get the right O2 sensors here to replace. I just dont know which sensor it is. I had a local shop put a diagnostic tool up there and it gave me the same thing yours did MeenGreen5.2 (catalyst efficiency low-bank 1). Can anyone help us out with this.

Patrick

2001 Dodge Ram 1500, QC 4x4, 5.9 360, 3.92
Superchips 3865
Galls Street Thunder siren, Code 3 L.E.D. Warning Dash Light, (VFD POV)
AEM CAI
Accel 8mm plug wires w/ autolite 3923s
Hi-flow Cat w/ Glasspack
LineX bedliner
Viper Alarm w/Remote Start
Leveling Kit

PMickey is offline  
#4 Old 01-14-2009, 09:40 PM
jmh
Registered User
 
jmh's Avatar
 
Join Date: May 2004
Posts: 127
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Im in the same boat after replacing cat - (p0420 code)

Although its not on my dodge, I am having the same exact issue!

Its my 97 Honda Prelude. When I got the car, some punk had unstalled a gutted cat (had a perma check engine light)

I ordered a high flow cat and replaced. Sure enough, a couple weeks later, the CEL came back.

I carry a code checker/clearer everywhere I go now so I can kill this CEL when it shows up.

My theory is due to the High-flo quality, the cat isnt filtering enough of the hydrocarbons which causes the #2 O2 sensor to endure out of spec exhaust triggering the CEL.

This has been occuring for about the past 5 months and I have yet to see a pattern. I've ran in really hot weather... really cold weather... and my CEL P0420 will trigger completely at random... (hot weather in cold engine and warmed engine and cold weather with cold engine and warm engine). Seems to make no difference.

I already have replaced both of my 02 sensors prior to this (thats when I found the cat was hollowed out) so I suspect them to be good.

I am considering getting a stock cat, but its just so freakin' expensive. ($400).

Good luck! If anyone finds the real cause please post back!

Thx

[ 1996 RAM 2500 v10] - SOLD Dec 2013 - Bought 5/30/2013 w/ 174k miles. Needed a ton of work.
[2004 RAM 1500] - SOLD Feb 2013 w/ 157k miles.
[2005 Durango SLT] - Wife's grocery getter/kid hauler.
[1997 RAM 1500 SLT] -- SOLD 6/25/2012 w/ 193k miles
jmh is offline  
#5 Old 01-14-2009, 09:59 PM
PMickey
Mother Mopar
 
PMickey's Avatar
 
Join Date: Oct 2008
Location: Greenville
Posts: 504
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by jmh View Post
"My theory is due to the High-flo quality, the cat isnt filtering enough of the hydrocarbons which causes the #2 O2 sensor to endure out of spec exhaust triggering the CEL."

"getting a stock cat, but its just so freakin' expensive. ($400)."
Thats what im afraid of.

Patrick

2001 Dodge Ram 1500, QC 4x4, 5.9 360, 3.92
Superchips 3865
Galls Street Thunder siren, Code 3 L.E.D. Warning Dash Light, (VFD POV)
AEM CAI
Accel 8mm plug wires w/ autolite 3923s
Hi-flow Cat w/ Glasspack
LineX bedliner
Viper Alarm w/Remote Start
Leveling Kit

PMickey is offline  
#6 Old 01-15-2009, 06:53 AM
RAMNSPD
Registered User
 
Join Date: Jan 2009
Location: Columbus
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
your other option is as long as you don't have to go through a vehicle inspection, is to get an o2 simulator, it plugs into your o2 plug, but you will need to leave the factory sensor or replace the sensor with a bung plug.
RAMNSPD is offline  
#7 Old 01-15-2009, 09:28 AM
PMickey
Mother Mopar
 
PMickey's Avatar
 
Join Date: Oct 2008
Location: Greenville
Posts: 504
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by RAMNSPD View Post
your other option is as long as you don't have to go through a vehicle inspection, is to get an o2 simulator, it plugs into your o2 plug, but you will need to leave the factory sensor or replace the sensor with a bung plug.
Where could i get one? If changin my sensors dont work.

Patrick

2001 Dodge Ram 1500, QC 4x4, 5.9 360, 3.92
Superchips 3865
Galls Street Thunder siren, Code 3 L.E.D. Warning Dash Light, (VFD POV)
AEM CAI
Accel 8mm plug wires w/ autolite 3923s
Hi-flow Cat w/ Glasspack
LineX bedliner
Viper Alarm w/Remote Start
Leveling Kit

PMickey is offline  
#8 Old 01-16-2009, 07:03 PM
canadian_mudder
Registered User
 
canadian_mudder's Avatar
 
Join Date: Sep 2007
Location: Alberta
Posts: 549
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Fastman makes the simulators, just put one in my truck, since my converter just mysteriously dissapeared lol. heres the link http://www.thefastman.com/02Simms.asp
might take a bit to get one, mine took almost 2 months, they were on back order.

2000 Dodge Ram 1500 Driftwood 4x4 SLT Ext. Cab
BDS 3" suspension lift
285/75R16 Toyo Open Country M/T
Pacesetter Long tube headers with dual exhaust
AFE Stage 2 Cold air intake
Superchips 3715 programmer
And one sweet rockerguarded gas cap


Trucks and Guns Club member #137
canadian_mudder is offline  
#9 Old 01-18-2009, 12:05 AM
mactizen
Registered User
 
Join Date: Dec 2008
Location: Harrow
Posts: 61
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
spark plug anti-foulers? there supposed to be easy to find and a 5 minute install?

http://forums.evolutionm.net/evo-how...ouler-how.html

Blue - 99 sport - 2wd - 318 ci - leather
Gutted cat,Magnaflow muffler into stock '06 diesel 4" rear exhaust pipe - very bassy
DIY CAI with K&N open element and TB spacer - came with truck
EBAY - HID's lows and fogs
Summit cap, rotor and 8.5mm wires, Autolite's
Auto Meter - trans temp and water temp
CPS mod - best free mod ever
E350 trans cooler in parallel with stock

^this pulls these>84 RX-7 best e.t 9.68@ 141.6 and 04 STi best e.t. 12.36 @ 112
mactizen is offline  
#10 Old 01-18-2009, 12:17 AM
PMickey
Mother Mopar
 
PMickey's Avatar
 
Join Date: Oct 2008
Location: Greenville
Posts: 504
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by mactizen View Post
spark plug anti-foulers? there supposed to be easy to find and a 5 minute install?

http://forums.evolutionm.net/evo-how...ouler-how.html
WOW that is very interesting. If I have anymore trouble, might have to give that a try.

Patrick

2001 Dodge Ram 1500, QC 4x4, 5.9 360, 3.92
Superchips 3865
Galls Street Thunder siren, Code 3 L.E.D. Warning Dash Light, (VFD POV)
AEM CAI
Accel 8mm plug wires w/ autolite 3923s
Hi-flow Cat w/ Glasspack
LineX bedliner
Viper Alarm w/Remote Start
Leveling Kit

PMickey is offline  
#11 Old 01-18-2009, 03:02 AM
moparman2k2
Senior Member
 
moparman2k2's Avatar
 
Join Date: Jan 2008
Location: Ishpeming, MI
Posts: 2,643
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I had to use those simulators with my Hi flow



Mike

Current Rides:
2011 Chevrolet Silverado 1500 4x4 ext. cab LS
2011 Chevrolet Malibu 1lt Allstar edition

Former Rams: 86 W150 RC/LB 4x4, 93 W150 RC/SB 4x4, 00 1500 QC 4x4 Sport, 02 1500 QC 4x4 Sport
moparman2k2 is offline  
#12 Old 02-06-2009, 08:12 PM
jmh
Registered User
 
jmh's Avatar
 
Join Date: May 2004
Posts: 127
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
That's funny. I just found this anti-fouler trick out on a couple of other forums yesterday. I just checked back so I could share.

I bought some anti-foulers yesterday. I plan on rigging them in tomorrow.

[ 1996 RAM 2500 v10] - SOLD Dec 2013 - Bought 5/30/2013 w/ 174k miles. Needed a ton of work.
[2004 RAM 1500] - SOLD Feb 2013 w/ 157k miles.
[2005 Durango SLT] - Wife's grocery getter/kid hauler.
[1997 RAM 1500 SLT] -- SOLD 6/25/2012 w/ 193k miles
jmh is offline  
Closed Thread


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Occasional abrupt sputter & chugging- code P0420 irishboi2000 2G Dodge RAM - General Talk 9 09-27-2008 12:41 AM
Trouble codes for neons 95-99 dodgeneonACR98 Dodge Neon - General Talk 87 02-25-2008 12:15 PM
Trouble Codes for 96-97 Caravans Jmw132001 3rd Gen Caravan Talk (96-00) 0 05-18-2006 09:54 PM
How to decode the VIN flattop 3G Dodge RAM Diesel Talk 9 03-23-2005 09:25 PM

Posting Rules  
You may not post new threads
You may not 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

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