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Trouble code 172 ford escort - 1994 Ford Escort

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What code 172 and 121 on 1993 ford escort mean

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System to rich(bank 1). Clean the MAF with QD electronics cleaner and see if it fixes the problem. Otherwise, you might need to replace the 1st o2 sensor and/or the maf. bank 1 is the bank where #1 cylinder is. also check all vacuum lines. if cleaning maf sensor does not help, then replace front 02 sensor on bank 1. the one before converter.

Posted on Jul 30, 2010

  • carl Jul 30, 2010

    also check coolant tempurature sensor if need be. if it is bad it will run rich, run rough at idle, engine may stall out.

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1995 Ford F150 codes 111,132 what they mean


P1131 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank No. 1

P1132 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 1

http://www.obd-codes.com/trouble_codes/ford/

Understanding Trouble Codes 111, 211, 172 Hey everyone,

recently pulled some trouble codes from my ECU, the KOEO code gives me 111, which the book says is a system pass, so I am assuming thats not a bad thing. I further went on to get the stored codes which are as follows (I get the same codes while doing a running test as well).


Understanding Trouble Codes 111 211 172 Ford F150 Forum Community of Ford...

Aug 01, 2016 | 1995 Ford F150 Styleside Regular Cab

1 Answer

1999 ford escort zx2 cranks but won't start


As with any no-start issue, you will need to figure out if you have a problem with fuel pressure to the injectors, or spark to the plugs.
I would also check the computer for trouble codes.
Let me know what you find out.

Jul 30, 2012 | 1999 Ford Escort

1 Answer

I have a 1994 ford escort 1.9L i'm having trouble finding a cure. Trouble code 172 and a complete loss of power. I know 172 is lean mix but what is the common issue associated with this code and what needs...


I would check and clean the MAF sensor, check fuel pressure, and check fuel pressure regulator. be sure to run fuel pressure test with the regulator hook up and disconnected, if pressure is low cahnge fuel filter and retest, if still low may need to replace fuel pump. Also check the injectors to see that they spray a full cone of fuel. Hope this helps, let me know.

Jul 04, 2010 | 1994 Ford Escort

1 Answer

Battery is draining and car isn't starting


172. (R,M). Oxygen sensor not switching - system is or was lean - Single, Right or Rear HO2S - Fuel control .... 583. (M). Fuel pump current was excessive - Power / Fuel Pump Circuits ..niether one of these issues would prevent the engine from turning over, but if one came into the shop not cranking, look at the batery, jump it to eliminate it as a possiblity, and then turn to the starter

Mar 19, 2010 | 1994 Ford Escort

1 Answer

I have two fault codes 00172 and 00111 what do


the 172 is saying the system was or is lean, the 111 cose is a system pass code meaning nothing is wrong, your test cycle ends with this code meaning no more codes present. As for the 172 code, check your intake tube between the air filter and the manifold for cracks/leaks, also check for any other vacuum leaks. Clear codes by disconnecting the battery positive cable for at least 10 seconds. Hope this helps, let me know.

Mar 17, 2010 | 1994 Ford Escort

2 Answers

How do i get trouble codes from my 95 ford escort


go to an autozone parts store they will scan it for free ,make sure you get the codes in order to diagnose the problem.

Nov 07, 2009 | 1995 Ford Escort

1 Answer

Code 172


172-

Oxygen sensor not switching - system is or was lean - Single, Right or Rear HO2S - Fuel control

Jul 13, 2009 | 1992 Ford Escort 4 Door

1 Answer

Check engine light on and not iddling right


the 1st thing you do is find out what system trouble code was stored with the check engine light, there are over 200 faults tat turen on the xceheck engine light so guessing which one is nearly imposs. have the trouble code test run.

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Ford 4.0 v6 misfiring


yes an o2 sensor can cause the mixture to go lean or rich. But you have another culprit also a knock sensor can cause this also. for the miss this is more of what the knock sensor would control. Hope this helps you

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