Question about 2003 Lincoln Navigator

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2000 lincoln navigator shimmys and almost stalls when stopped, code states"bank 2 lean" i replaced the 02 sensors on both sides but it is still doing it?? any thoughts?

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Check for Vacuum leaks near the intake manifold.

Posted on Jun 22, 2009

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2 Answers

2000 navigator system too lean


Too Lean on which Bank of the Motor?

To have a lean O2 Code --you could have a rich fuel
condition & the pcm drove the fuel trim lean

Next you could have a vacuum leak-in the intake or exhaust system

Third you could have a failed O2 Sensor

Front or Upstream Oxygen Sensors get replaced at 100,000 miles

The front sensors are on the exhaust pipe between the motor &
the converter.

Will need a long handled flex head O2 Sensor Wrench

Mar 17, 2014 | 2000 Lincoln LS

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2000 Lincoln Navigator - few days ago started idling very rough when truck is at a stop or in park. Service Engine Light came right around time I noticed that it was idling rough when stopped. Following...


P1131 Lack of HO2S-11 Switch ,Sensor Lean
P1151-Lack of HO2S-21 Switch ,Sensor Lean
PO171- System to Lean (Bank 1)
PO174-Systen to Lean (Bank 2)

Fuel Filter -Plugged
Low Fuel Pressure
Evap System -Leaks
Leaks - in ducting,air filter to throttle
PCV -Leaks
Exhaust System -Leaks
O2 Sensors-worn out

Apr 06, 2011 | 2003 Lincoln Navigator

1 Answer

Code reading p0420 bank 1 on 2006 lincoln navigator. which one is bank 1/


bank 1 is the side were the #1 cylinder is. po420 catylist below threshold ( bank 1 ). if your check engine light is on for a P0420 code( bad converter ) and you decide not to fix it, another more serious code could be triggered and you'd never know. it could the back 02 sensor also, behind convertor. have a mechanic check it out.

Mar 20, 2011 | 2006 Lincoln Navigator

1 Answer

What do the codes 1128, 1129, 1133, and 1134 mean on my Porsche Boxter 2001?


code P1128 02 sensor bank 1 lean
code P1129 02 sensor bank 1 lean to limit
code P1133 02 sensor bank 2 lean
code P1134 02 sensor bank 2 lean to limit

fuel system is lean.

Jan 29, 2011 | 2001 Porsche Boxster

2 Answers

Code reader said O2 sensor bank 2 sensor 1 showing lean, so I replaced sensor on passenger side closest to the engine. I also replaced the fuel filter. Light came back on, had it shut off and came back on...


Do you know how a O2 sensor works ? Do you know what fuel trims are ? short an long term fuel trims . Do you know how to test a O2 sensor . If the light comes back on it's not the O2 sensor . And if it's only on one bank it's not fuel pressure problem . How does the vehicle run , at idle an cruise ? Any other codes ? Could be a fuel injector problem , vacuum leak intake manifold .

Aug 28, 2017 | 2003 Lincoln Navigator

1 Answer

Dodge 2004 p171 p174


p0171-- system to lean (bank 1)----p0174-- system to lean (bank 2 ). bank 1 is the side that #1 cylinder is on. bank 2 is the other side. the cause may be bad 02 sensors on both banks, or a exhaust leak. also you may want to check and clean the mass air flow sensor. for the sensor will set the same code as 02 sensors. good-luck!!

Aug 11, 2010 | Dodge Durango Cars & Trucks

1 Answer

1999 lincoln navigator fault code


Your cilinder 2 sensors are going wacky. located close to the cilinder itself. you may need to replace them chec your repair book for specific locations. Thenget a OBDII reader to erase code. Some autos if you disconnect your battery cable for a few may reset it to stop the blinking.

Jun 30, 2010 | 1999 Lincoln Navigator

2 Answers

Check engine light flashing runs rough not firing on all cylinder2000 lincoln navigator with large triton engine Hooked up diagnnostic and it said 1. system too lean bank #2 2. Unable to bleed up fuel tank...


you may try your rotor button and distributor cap. and spark plug wires. try your map sensor also they tend to cause a lot of misfiring if they go bad.hope this helps.

Apr 20, 2010 | Lincoln Navigator Cars & Trucks

1 Answer

2000 lincoln navigator unable to bleed up fuel


I think I would try the easiest thing to fix and then see how much straightened out. The fuel tank vacuum will probably be a gas cap not on tight or defective or a gas vapor line has a hole in it. You may need a smoker to find that leak if the gascap is okay,

Bank 1 should have cylinders 1,2,3,4. Since 3 cylinders that are in the same bank are misfiring it must be lack of fuel or bad spark. The tester said that bank was lean. If the plugs were not firing it would be rich with unburned fuel. The tester also indicated the other fuel tank vacuum bleed problem.

You might try the power connector for the Bank 1 injectors or check the injector wiring for #2,3,and 4 to see if they are getting power.

Remember to clear the diagnostic meter to see if the trouble codes return. Would be interested in the outcome.

Apr 19, 2010 | 2000 Lincoln Navigator

1 Answer

Codes


Your sensors are reading correctly so leave them alone. What you have is a fuel delivery issue. Your MAF sensor is telling your engine to lean your fuel mixture. You need to remove and clean or replace (is better) the MAF. But first replace your PVC valve and clean your ERG valve.

Jan 20, 2010 | 2000 Dodge Intrepid

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