P1151 Code and some other issues - Ranger-Forums - The Ultimate Ford Ranger Resource
Ford Ranger Forum - Forums for Ford Ranger enthusiast!

Go Back   Ranger-Forums - The Ultimate Ford Ranger Resource Arrow Ranger-Forums Technical Forum Arrow General Technical & Electrical

General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

LinkBack Thread Tools Search this Thread
Old 08-08-2013
Thread Starter

I am: D Schoelman
Join Date: Aug 2013
Location: Croghan
Vehicle: Ford Ranger
Posts: 3
Total Props: 0
P1151 Code and some other issues

Hi there everyone... new to the forums here, been lurking a while, and did some searching but couldn't find what I'm looking for, so decided to make a username and join the forums, everyone seems very helpful afterall.

1999 Ford Ranger 4.0. 160k+ miles on it, just got it a few months ago.

Yesterday it threw a CEL at me, and read the code, it said P1151 HO2S21 lean

My first thought was the MAF, and I could blow it out or soak it in paint thinner for a while to clean it up... but what about the H02s21 lean... that makes me think it's something other than the MAF? Anyone have experience with this, can you point me to best first steps to fixing this...?

EDIT: Yesterday it ran fine all day with the CEL, no shaking or anything other than the CEL. Today's cold start it stalled and took a long time to start, then ran fine.

FYI I've been driving on a military base for the past 3-4 days in a SUPREMELY dusty enviornment... all the roads are covered with something like moon-dust and you can only go about 15mph before you lose sight of the person in front of you due to dust cloud...

I pulled my airbox and it's pretty bad but not awful... blew it out and cleaned it, been wanting to swap for a K&N anyway so this may not be a bad time.... what about getting a replacement MAF from a junkyard truck? will that work or is it frowned upon?

Thanks in advance

Last edited by rushguy; 08-08-2013 at 09:37 AM.
Reply With Quote
+ 0 -
Old 10-07-2013
I am: mark spitzke
Join Date: Apr 2013
Location: santa ana, CA
Vehicle: Ford Ranger
Posts: 2
Total Props: 0
I have fog/driving lights on my truck had a similar situation as in my fog lights (both) stopped working....for no apparent reason. Short time later they came back on. Long story short, (I know...TOO late!) it turns out ford has a CANCELATION SWITCH that kills the "low beams" when you hit the "high beams"! After I did a lil checking, that was it. Just a thought. You might have that cancelation switch on your truck which be cool. BTW- THIS IS MY FIRST ATTEMPT TO POST. FELT GOOOD My apologies for posting here. It was meant in the thread before. THANKS, Boxmacker

Last edited by Boxmacker; 10-07-2013 at 11:57 AM. Reason: My reply posted in the wrong thread SORRY, My 1st time
Reply With Quote
+ 0 -

Similar Threads
Thread Thread Starter Forum Replies Last Post
Occasional P1151 code 08hybridok 2.9L & 3.0L V6 Tech 8 05-28-2014 08:27 PM
2003 Ranger Edge - won't go over 60 and other issues danunderscore 2.9L & 3.0L V6 Tech 8 05-19-2010 10:32 PM
I now it is a dummy gauge but....and a few other issues.... jtfoxman General Technical & Electrical 4 03-16-2010 06:06 AM
P1151 CE Code. (Decomp smell in exhaust.) (LONG POST) Hawklore General Technical & Electrical 4 12-27-2009 02:30 PM
CEL Code P1132 and P1151 olsonk_89 General Technical & Electrical 4 06-08-2005 11:15 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

All times are GMT -6. The time now is 05:55 PM.