Question about 2001 Ford Escort ZX2

3 Answers

P0171 code on 99 Ford Escort ZX2 2.0L

I've had a rough idle/stalling problem. Never threw a code or CEL. Replaced the fuel filter and it cleared up. A couple days later the CEL came on and I got a P0171 code. I replace the air filter, removed and cleaned the MAF sensor and cleaned the intake piping- there was a light coating of dust in it. I also noticed some carbon build up in the throttle body and it has a strong odor of fuel. What should be my next course of action?

Posted by on

  • mjmullis79 Jun 30, 2009

    Fixed, found elbow to PCV valve had a hole melted thru it. Thanks

×

Ad

3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 82 Answers

Check vacuum hoses to MAP sensor. They can get porous after a while. Also check hose to EGR valve.

Posted on Jun 27, 2009

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 117 Answers

I am kinda tired trying to remember that engine but I believe p0171 is a system to lean code check pcv valve, if its the one I think the rubber hose tends to colapse, other possible causes intake leak or even a leaking injector

Posted on Jun 27, 2009

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Ford Master
  • 2,359 Answers

Check for air leak after the MAF.

Example: plastic air duct between block and MAF.

The computer see one value and the it's more air and different temp. entering engine.

So it will ran lean.

===

Are you using K&N type air filter?

Make sure you are not over oiling the filter.








Posted on Jul 09, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

2013 Ford Escort P0171 Stalls when I come to a stop. Replaced up stream O2 sensor


Nothing to do with the O2 sensor. It is a mixture issue. Too lean. Air filter taken out maybe.

Feb 16, 2018 | Ford Cars & Trucks

1 Answer

99 escort 100k miles. stalls when idling. Check


HAVE CAR SCANNED COULD BE FAULTY IDLE SPEED CONTROL.FAULTY EGR VALVE OR BAD FUEL INJECTOR.

Jun 24, 2010 | 1999 Ford Escort

1 Answer

Rough idle, car stalls frequently at stops


We would need to konw the codes to be able to answer that .

Mar 15, 2017 | 2001 Ford Escort ZX2

2 Answers

Stalls when idling!


sounds like the idle is set a little to low or bad fuel filter

Jun 02, 2009 | 1993 Ford Escort 4 Door

1 Answer

Diagnostic Codes p0171 bank 1, and p0174 bank 2 (too lean)


Those codes are for the oxygen sensors, lean fuel mixture on both banks. Change them, problem with stalling and rough idle should go away.

Apr 23, 2009 | Ford Expedition Cars & Trucks

2 Answers

98 E-250 Rough Idle; codes p0156,p1131,p1151,p0301,p0171,p0174+


po301 thru po306 all misfire codes cylinder 1-6 remove plugs and replace them..... set the plug gap first
i suggest u replace the wires also if they never been replaced all these misfire codes can set the others and one is for the oxygen sensor ( 02s or HO2S) CIRCUT MALFUNCTION do u know how to check wireing systems
do the tune up plugs (set gap) .052-.056 change the fuel filter also. clear the codes hows it run
this info is for 98 E-250 4.2Litre
what engine do u have 4.2L or 4.6L i know it is a v-6 by the codes

Dec 15, 2008 | 2003 Ford E250

1 Answer

1999 LEXUS RX300 41000 MILES CEL ON


what are the new codes clearing / resetting doesnt fix the problem the p0171 code has about ten different causes just changing or cleaning the sensor may not have been your problem
P0171 System Too Lean Bank 1 rescan and get all codes then look up each one most sites have causes and solutions for obd ll trouble codes

Jul 23, 2017 | 1999 Lexus RX 300

Not finding what you are looking for?
2001 Ford Escort ZX2 Logo

1,978 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

80637 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

fordexpert

Level 3 Expert

5687 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...