Question about 2001 Ford Mustang

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I have a 2001 mustang with an open circuit to fuel pump..possible causes?

3.8 engine

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  • 9 Answers

Replace your fuel pump relay.

Posted on Jan 01, 2013

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

Yuma Duner
  • 5 Answers

SOURCE: Intermittent fuel pump engagement when turning key - 2001 Taurus

try cleaning the connector that goes to the fuel pump, sometimes they corrode on inside. If that does not fix, test the wires feeding fuel pump with a multi meter until the condition shows itself again, if voltage drops to zero or very low then wiring problem, if voltage is unchanged with problem and fuel pump is not working and connectors are all clean, try replacement of fuel pump.

Posted on Oct 09, 2009

  • 89 Answers

SOURCE: i have a p1237 code and all it says is fuel pump

should be pump relay. berrydalewolf

Posted on Oct 27, 2009

michigan man
  • 3533 Answers

SOURCE: instructions on how to replace fuel pump on 2001

the best thing for you to do is stop by your local library and get your hands on a Haynes auto repair manual for your car you will have to drop the tank but i always checkout the fuel pump relay before i do wish you the best of luck Michigan Man

Posted on Dec 09, 2009

johnjohn2
  • 5763 Answers

SOURCE: how do i reset fuel pump switch on 2001 ford

it in the lower left corner of trunk, all you do is push in button ,thats it if thats your problem it will reset.hope this helps.

Posted on Dec 28, 2009

ZJLimited
  • 17970 Answers

SOURCE: FORD F150 4.6 L Engine

Several thnigs to check there; review all informastion disponible to do it and solve this...

P0356
- Ignition Coil F Primary/Secondary Circuit Malfunction
The ignition signal from the Powertrain Control Module (PCM) or Electronic Control Module(ECM) is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- The engine may be harder to start
- Engine hesitation

Possible Causes:
- Open or short in the ignition coil circuit
- Ignition coil circuit shorted to ground
- Ignition coil connector
- Damaged ignition coil
- Damaged PCM or ECM

Possible Solution:
- If damage, repair ignition coil circuit
- Replaced ignition coil
- Replaced PCM or ECM
------------------------------------------------------------------------------------------------------------------------------------------------

P0152 - O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)
The heated oxygen sensor 1 is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the ECM. The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

Symptoms:
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust

Possible Causes:
- Harness or connectors (The heated oxygen sensor 1 heater circuit is open or shorted.)
- Front Heater oxygen sensor heater (Bank 2) may be faulty

Possible Solution:
Replacing the O2 Sensor 1 usually takes care of the problem
------------------------------------------------------------------------------------------------------------------------------------------------

P0174 - Fuel Injection System Too Lean Bank 2
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. The ECM calculates the necessary compensation to correct the offset between the actual and the theoretical ratios.

In case the amount of the compensation value is extremely large (The actual mixture ratio is too lean.), the ECM judges the condition as the fuel injection system malfunction and light up the MIL (2 trip detection logic).

Symptoms:
- Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption

Possible Causes:
- Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection

Possible Solution:
Dirty air filter of faulty air flow sensor are common causes of the problem.
------------------------------------------------------------------------------------------------------------------------------------------------

P2197 - DODGE - Sys Too Rich at Hier Load Bank1
Means that the O2 sensors on each bank are seeing WAY too much oxygen in the exhaust gas. In normal operation the signal from the O2 sensors should swing back and forth between rich and lean. Your sensors are locked on lean.

Those codes are the same as P0174 (and P0171). Sounds like you have a vacuum leak somewhere. Most common place is the PCV elbow where it connects to the throttle body adapter.
------------------------------------------------------------------------------------------------------------------------------------------------


Hope this helps; keep in touch.

Posted on Dec 30, 2010

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What is code P0627 on mercedes c230 sport? will not crank


Generic OBD Error Code Details for P0627 Fuel Pump "A" Control Circuit /Open What does this mean? OBD Code P0627refers to
ECM detected an open or short in the fuel pump relay circuit Symptoms Possible sumptoms of OBD code P0627
- Engine Light ON (or Service Engine Soon Warning Light) Causes Possible causes of OBD code P0627
- Fuel pump circuit open or short - Fuel pump circuit poor electrical connection - Faulty fuel pump relay - Faulty fuel pump control module (if applicable)

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What does the codes 0627-0681-0680-0688 on 2006 chrysler sebring 2.4 16 valve 4 cly


Hi there:

DTC P0627 CHRYSLER - Fuel Pump Relay Control Circuit
ECM (Engine Control Module) detected an open or short in the fuel pump relay circuit
Possible causes
- Fuel pump circuit open or short
- Fuel pump circuit poor electrical connection
- Faulty fuel pump relay
- Faulty fuel pump control module (if applicable)


DTC P0680 - Cylinder 10 Glow Plug Circ, and,

DTC P0681 - Cylinder 11 Glow Plug Circ
The Engine Control Module (ECM) has detected a fault in the cylinder #10 or #11 glow plug circuit.


Possible causes
- Cylinder #10, or #11 glow plug circuit is open or shorted
- Faulty cylinder #10 or #11 glow plug
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DTC P0688 CHRYSLER - Auto Shutdown Relay Control Circuit Low

The Front Control Module (FCM) has detected the supply voltage below an acceptable value.

Possible causes
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- Failed Auto Shutdown relay
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Check all the ECM fuses, if the fuses are OK try replacing the ASD relay.

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Thank you for using FixYa, have a nice day.

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Cranks but won't start



Trouble Code: P0300

Multiple Cylinder Misfire Detected
Possible Causes:


Air leak in the intake manifold, or in the EGR or EVAP system Base engine mechanical fault that affects two or more cylinders Erratic or interrupted CKP or CMP Sensor signals Fuel delivery component fault that affects two or more cylinders (i.e., a contaminated, dirty or sticking fuel injector)


Trouble Code: P0302

Cylinder 1-10 Misfire Detected
Possible Causes:


Air leak in the intake manifold, or in the EGR or EVAP system Base engine mechanical fault that affects only one cylinder Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)


Trouble Code: P0305

Cylinder 1-10 Misfire Detected
Possible Causes:


Air leak in the intake manifold, or in the EGR or EVAP system Base engine mechanical fault that affects only one cylinder Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)


Trouble Code: P0351

Ignition Coil No. 1, 2 or 3 Primary Circuit
Possible Causes:


ASD relay power circuit to the ignition coil is open Ignition Coil No. 1, 2 or 3 primary "driver" circuit open or grounded Ignition Coil No. 1, 2 or 3 is damaged or it has failed


Trouble Code: P0352

Ignition Coil No. 1-8 Primary Circuit
Possible Causes:


ASD relay power circuit to the ignition coil is open Ignition coil primary "driver" circuit open or grounded


Trouble Code: P0353

Ignition Coil No. 1-8 Primary Circuit
Possible Causes:


ASD relay power circuit to the ignition coil is open Ignition coil primary "driver" circuit open or grounded Ignition coil is damaged or it has failed PCM has failed Ignition coil is damaged or it has failed PCM has failedPCM has failed Ignition system problem (coil or plug) in only one cylinder Ignition system problem (coil or plug) in only one cylinder Ignition system problem (coil or plug) in two or more cylinders Vehicle driven with low fuel pressure or while very low on fuel

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Trouble Code: P0230

Fuel Pump Circuit Malfunction
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Fuel pump control circuit is open or shorted to ground Fuel pump relay power circuit from ignition switch is open Fuel pump relay is damaged or has failed PCM has failed

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Po705 2001 mustang auto


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2001 mustang, 3.8L, engine turns over but will not start. what are the most probable causes.


#1 fuel pump. #2 bad fuse. #3 bad igntion coil[s]. You should be able to hear the fuel pump turn on when you first turn the key on [ not to start]. then check for blown fuse.

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Its a 99 GT, the engine winds over but dosent start, Ichecked the relay in the boot & checked & switched the relays under the hood, is there a fuse anywhere as well? if so , where? the car only has...


Fix the Ford P1233 FPDM Fuel No Start Problem Here's a fix for that no-start condition on 2004-2008 Ford trucks. The FPDM (fuel pressure driver module) usually shows up as a P1233 diagnostic trouble code (OBD-II) when the truck's codes are read. A Ford P1233 code is described as Fuel Pump Driver Module Offline or Fuel System Disabled or Offline. A search on Google for Ford P1233 shows that this P1233 DTC code is not limited to being a problem on just Ford trucks. Others with the Focus, Mustang, Town Car, etc. also experience this problem.
You may experience stalling, no-starts, random no-starts, or other potential symptoms. A quick search over at MotorcraftService.com (a Ford service web site), they offer the following possible causes if the P1233 code is triggered:
  • Inertia fuel shutoff (IFS) switch needs to be reset.
  • Open FPDM ground circuit
  • Open circuit to FPDM PWR RLY
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