Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #1  
Old 06-12-2011, 11:16 AM
joesticklin joesticklin is offline
Learning to use the forums
 
Join Date: Jun 2011
Posts: 3
Default Rough Idel and Code 1151

Hello to everyone here. I have a ranger 1999 that threw a code 1151. I brought it into the shop and they started by replacing all spark plugs and wires. They cleared the code and after 30 minutes of driving, it threw the same code. I also notice when stopped at a light, the engine (sometimes) runs real rough. Like it wants to shut off, but doesn't. What is wrong with my ranger?
__________________
Joe Sticklin

Ford Ranger 3.0L 2x4wd flareside 1999
Reply With Quote
  #2  
Old 06-12-2011, 11:41 AM
littleblue littleblue is offline
Semper Paratus
 
Join Date: May 2009
Posts: 274
Default Re: Rough Idel and Code 1151

My Ford CD only goes back to 2000, but here is what it shows for your code:

P1151 - Lack of HO2S (heated oxygen sensor switch)-21 Switch, Sensor Indicates Lean A HEGO sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when fuel control system no longer detects switching for a calibrated amount of time. See Possible Causes for DTC P1130

The possiible causes for DTC P1130 are:

Electrical:
Short to VPWR in harness or HO2S
Water in harness connector
Open/Shorted HO2S circuit
Corrosion or poor mating terminals and wiring
Damaged HO2S
Damaged PCM

Fuel System: Excessive fuel pressure
Leaking/contaminated fuel injectors
Leaking fuel pressure regulator
Low fuel pressure or running out of fuel
Vapor recovery system

Induction System:
Air leaks after the MAF
Vacuum Leaks
PCV system
Improperly seated engine oil dipstick

EGR System:
Leaking gasket
Stuck EGR valve
Leaking diaphragm or EVR

Base Engine: Oil overfill
Cam timing
Cylinder compression
Exhaust leaks before or near the HO2S(s)

Hope this helps...
__________________
'00 XLT 3.0 Exted cab
Mods: Roush hood & cai, ASP pwr pulley, hot wtr bypass, 180 therm, e-fan, Gibson exh., 4.10 l/s, FabTech lift, kyb's, bii sway bar. 31x10.50 Yokahama ATs, Panther rims, light bar, SS grille, 03 stang buckets, explorer console, hurst shifter


http://www.cardomain.com/ride/706028/1

Last edited by littleblue; 06-12-2011 at 11:46 AM.
Reply With Quote
  #3  
Old 06-19-2011, 08:30 PM
joesticklin joesticklin is offline
Learning to use the forums
 
Join Date: Jun 2011
Posts: 3
Default Re: Rough Idel and Code 1151

Thank you for your input. I did have the spark plugs and spark plug wires replace by a shop. I also replaced the EGR value, cleaned the MAC and cleaned the IAC. The truck doesn't seem to idel rough all the time. I notice it only idels rough after it has been running for awhile, like driving to work or the store 20 MILES, TURN OFF, then when I start truck back up it will SOMETIMES idel rough. I also noticed the code 1151 shows up sometimes after 50 to 100 miles of driving, random, and after a trip 500 plus miles and back, it threw a cylinder 6 misfire. Please point me in the right direction on what I should check next. Could the throttle position switch be bad or could it be the actual O2 sensor? Would that cause these random problems? Please help the confused.
__________________
Joe Sticklin

Ford Ranger 3.0L 2x4wd flareside 1999
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
rough idle snipes040 3.0 Vulcan Tech 11 04-21-2011 03:42 PM
rcm code list?code 33 Anvil02 General Tech 0 04-10-2011 08:57 AM
2003 3.0 Ranger - rough low idle (400 rpm), bogs at 2500K, rough shift, NOW FINE Chargerondavins 3.0 Vulcan Tech 1 03-26-2011 04:54 PM
Rough... aaron_ariens Vehicle Videos 9 02-12-2010 04:41 PM
1151 code (Bank 2 sensor 1) ? Rj 1 4.0 SOHC / 4.0 OHV Tech 2 02-09-2010 02:02 PM