Has anyone else had the code p1421 come up with the check engine light? - Nissan Titan Forum
Titan Problems & Dealer Service Having a problem with your truck? Dealer service got you down? Let us know here.

 
LinkBack Thread Tools Rate Thread Display Modes
#1 (permalink) Old 08-02-2010, 01:28 PM
Registered User
 
cp.16's Avatar
 
Join Date: Jun 2006
Location: New Hampshire
Posts: 239
Thanks: 89
Thanked 18 Times in 10 Posts
iTrader Score: 1 reviews
Has anyone else had the code p1421 come up with the check engine light?

Has anyone else had the code p1421 come up with the check engine light?

2007 Chevy Suburban until further notice.
cp.16 is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 08-02-2010, 01:50 PM
Registered User
 
sudden urge's Avatar
 
Join Date: Jan 2006
Location: Chicago area
Posts: 6,821
Thanks: 781
Thanked 1,191 Times in 870 Posts
iTrader Score: 4 reviews
Re: Has anyone else had the code p1421 come up with the check engine light?

Service Bulletin 121710 for Nissan ENGINE AND ENGINE COOLING | AutoMD

Chicago area 05 KC SE 4x2 FFV, smoke, 2.94 gearing. Mods: Hypertech Max Energy, JBA catback, Airaid 4" MXP CAI, Hellwig HD traction springs, 08 rear shackles, Nasta nerf bars, Kenwood KSC-SW1 powered sub. Best full street trim (5120#) 1/4 mile track time of 14.632 running Bully Dog 87+2 and S&B CAI. 1/8 mile 9.30@74.49 with a 2.11 60'.
sudden urge is offline  
The Following User Says Thank You to sudden urge For This Useful Post:
cp.16 (08-02-2010)
#3 (permalink) Old 08-02-2010, 04:04 PM
Premium User
Nissan Titan Status - Premium Member
 
baseballfanz's Avatar
 
Join Date: Jun 2005
Location: Sugar Land, Republic of Texas
Posts: 16,995
Thanks: 2,174
Thanked 3,243 Times in 2,154 Posts
iTrader Score: 1 reviews
Re: Has anyone else had the code p1421 come up with the check engine light?

Here's some infos.

The manual say the first thing to do is the
-Idler air volume learning (the procedure is posted here somewhere)
-Check intake system
-Check fuel injection system
Attached Thumbnails
Click image for larger version

Name:	Capture.JPG
Views:	241
Size:	33.4 KB
ID:	107680  


2014 Wrangler Unlimited Sahara

Titan/Armada Part Numbers

Frequently asked fuse locations


305.5 WHP, 370.4 ft/lbs tq
baseballfanz is offline  
#4 (permalink) Old 08-03-2010, 03:41 AM
Registered User
 
cp.16's Avatar
 
Join Date: Jun 2006
Location: New Hampshire
Posts: 239
Thanks: 89
Thanked 18 Times in 10 Posts
iTrader Score: 1 reviews
Re: Has anyone else had the code p1421 come up with the check engine light?

It happened on my vacation randomly. I started it one morning and it came on. I was far from any dealer so I bought a simple reader saw the code read up on it to see if my truck was in any danger. I cleared it and checked everything and figured if it came back on by the time I returned back home I would take it to my dealer. I have driven 1500 miles since then 1400 from my trip and it has not come back on. So now I am not sure if I should not tell my dealer when I take it in for service (recalls, inspection) or just wait and see if it comes back on and take it in then. The funny thing is since then it seems that my truck has finally woken up and is peppy. I now have 18000 on her.

2007 Chevy Suburban until further notice.

Last edited by cp.16; 08-03-2010 at 03:45 AM.
cp.16 is offline  
#5 (permalink) Old 08-03-2010, 05:19 AM
Banned
 
Join Date: Jun 2009
Posts: 88
Thanks: 11
Thanked 10 Times in 8 Posts
iTrader Score: 1 reviews
Re: Has anyone else had the code p1421 come up with the check engine light?

I would check your air filter, and see if it's not completely dirty.....
Daytona Coupe is offline  
#6 (permalink) Old 08-03-2010, 06:33 AM
Registered User
 
cp.16's Avatar
 
Join Date: Jun 2006
Location: New Hampshire
Posts: 239
Thanks: 89
Thanked 18 Times in 10 Posts
iTrader Score: 1 reviews
Re: Has anyone else had the code p1421 come up with the check engine light?

It is a bully dog filter with only 10000 on it and I made sure it was clear and tight. Might it have something to do with with the fuel pump recall?

2007 Chevy Suburban until further notice.
cp.16 is offline  
#7 (permalink) Old 08-03-2010, 09:03 AM
Banned
 
Join Date: Jun 2009
Posts: 88
Thanks: 11
Thanked 10 Times in 8 Posts
iTrader Score: 1 reviews
Re: Has anyone else had the code p1421 come up with the check engine light?

Quote:
Originally Posted by cp.16 View Post
It is a bully dog filter with only 10000 on it and I made sure it was clear and tight. Might it have something to do with with the fuel pump recall?
I will take it that it's oiled?
10,000 = about 6+ months of driving.....
I would think it's time for a cleaning.
It also might be over oiled.
Daytona Coupe is offline  
#8 (permalink) Old 08-03-2010, 12:12 PM
Registered User
 
cp.16's Avatar
 
Join Date: Jun 2006
Location: New Hampshire
Posts: 239
Thanks: 89
Thanked 18 Times in 10 Posts
iTrader Score: 1 reviews
Re: Has anyone else had the code p1421 come up with the check engine light?

The air filter is perfect; I am a mechanic and very anal about a clean well maintained truck. This is random anomaly and was trying to decide if to let it go or tell my dealer.

2007 Chevy Suburban until further notice.
cp.16 is offline  
#9 (permalink) Old 08-03-2010, 12:50 PM
Registered User
 
sudden urge's Avatar
 
Join Date: Jan 2006
Location: Chicago area
Posts: 6,821
Thanks: 781
Thanked 1,191 Times in 870 Posts
iTrader Score: 4 reviews
Re: Has anyone else had the code p1421 come up with the check engine light?

Quote:
Originally Posted by cp.16 View Post
The air filter is perfect; I am a mechanic and very anal about a clean well maintained truck. This is random anomaly and was trying to decide if to let it go or tell my dealer.
I didn't read the details in that TSB I posted. Did you read the cause and cure details in it?

Chicago area 05 KC SE 4x2 FFV, smoke, 2.94 gearing. Mods: Hypertech Max Energy, JBA catback, Airaid 4" MXP CAI, Hellwig HD traction springs, 08 rear shackles, Nasta nerf bars, Kenwood KSC-SW1 powered sub. Best full street trim (5120#) 1/4 mile track time of 14.632 running Bully Dog 87+2 and S&B CAI. 1/8 mile 9.30@74.49 with a 2.11 60'.
sudden urge is offline  
#10 (permalink) Old 08-03-2010, 06:49 PM
Registered User
 
cp.16's Avatar
 
Join Date: Jun 2006
Location: New Hampshire
Posts: 239
Thanks: 89
Thanked 18 Times in 10 Posts
iTrader Score: 1 reviews
Re: Has anyone else had the code p1421 come up with the check engine light?

baseballfanz Posted this with a thumb nail which helps to narrow it down.

Here's some infos.

The manual say the first thing to do is the
-Idler air volume learning (the procedure is posted here somewhere)
-Check intake system
-Check fuel injection system

2007 Chevy Suburban until further notice.
cp.16 is offline  
Reply

Jump to top


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
Display Modes Rate This Thread
Linear Mode Linear Mode
Rate This Thread:



  Similar Threads
Thread Thread Starter Forum Replies Last Post
SLIP LIGHT> ABS LIGHT> Check Engine Light????? Cricket7 Titan General Discussion 23 03-16-2014 06:39 PM
engine light on...got code celltechtitan Titan Problems & Dealer Service 6 05-05-2010 12:23 PM
P1027 Service Engine Soon Check engine light Hendge Titan General Discussion 0 01-21-2008 01:28 PM
Check Engine Code #'s inside Cole Titan Problems & Dealer Service 6 09-14-2005 07:15 AM

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
Trackbacks are On
Pingbacks are On
Refbacks are On