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07 mustang v6 4.0 I have replaced the following sensors maf, crankshaft position, tps, cam, engine coolant temperature, and the oxygen. I have also changed the fuel filter, the spark plug wires, the fuel pump, and the spark plugs. the car runs good when it wants to and when it fails the car won't go fast when you press the gas pedal it'll go at the same speed . You have to keep pressing the pedal so it will accelerate. Also the gas doesn't burn good and it backfires a little and not that loud either. I have put the scanner recently and the codes were these p1116,p2197,p1127.One was for the oxygen sensor and the other was for engine coolant temperature sensor which I changed but still does the same thing.

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6ya6ya
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Posted on Jan 02, 2017

  • 41 Answers

SOURCE: my van when pressing on gas pedal jerks while

could be two things, 1; the coil is going bad. 2; the electronic egr valve has a piece of carbon in it. the latter is probably the problem. to fix this , just remove the valve, push on the piston and while holding it in the open position, spray with carb cleaner and blow it out, release the piston and be sure the valve is closing all the way. if the gasket is damaged you can get a new one at the parts store.

Posted on Dec 18, 2009

arauzvictor1
  • 466 Answers

SOURCE: engine runs fine most of time then once in a while

It is best that you make a scanner to see if it gives you some code and do not keep changing parts for pleasure I recommend that if you measure the pressure of the gas pump when you feel the decision would be good for my doubts. Thanks

Posted on May 10, 2010

saailer
  • 1868 Answers

SOURCE: FORD F150 4.6 L Engine

Hello! Please send the year of the vehicle and I'll send an action plan to solve the problem...Do you have a mulitimeter and a wee bit of experience using it? Included in the plan will be test procedures (not difficult) which require a meter.....

Guru....Saailer

Posted on Dec 31, 2010

  • 3 Answers

SOURCE: what causes 2000 taurus engine rough idle but no codes

remove neg. cable from battery so the ECM will reset this may work. make sure the IAC is air tight. if this doen't fix your problem have someone check the IAC valve if it's bad the part runs $300.00 pluse

Posted on Nov 25, 2011

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Need to know the location of both crankshaft position sensor on 2008 Chevrolet hhr plz thx


Only has one crankshaft position sensor ,an cam sensors . To change the crank sensor u would have to pull the starter ,located above starter .
Camshaft Position Sensor Replacement - Intake Camshaft Position Sensor Replacement - Exhaust
After a crank sensor replacement a
Crankshaft Position System Variation Learn has to be done !
Important: The crankshaft position (CKP) system variation learn procedure is required when the following service procedures have been performed, regardless of whether DTC P0315 is set:
?€¢
Engine replacement


?€¢
Engine control module (ECM) replacement


?€¢
Crankshaft damper replacement


?€¢
Crankshaft replacement


?€¢
CKP sensor replacement


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Any engine repairs which disturb the crankshaft to CKP sensor relationship

Important: The scan tool monitors certain component signals to determine if all the conditions are met to continue with the CKP system variation learn procedure. The scan tool only displays the condition that inhibits the procedure. The scan tool monitors the following components:
?€¢
CKP sensor activity--If there is a CKP sensor condition, refer to the applicable DTC that set.


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Camshaft position (CMP) signal activity--If there is a CMP signal condition, refer to the applicable DTC that set.


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Engine coolant temperature (ECT)--If the engine coolant temperature is not warm enough, idle the engine until the engine coolant temperature reaches the correct temperature.

Apr 04, 2016 | Chevrolet Cars & Trucks

2 Answers

Ok what do you call the sensor


Ok what do you call the sensor Arnold, List of sensors, could be more on different vehicles. You will have to have scanned to get codes to diagnose problem.
  • Crank Position (CKP)
  • Cam Position (CMP)
  • Engine Coolant temp (ECT)
  • Manifold Absolute Pressure or Mass Air Flow, MAP and/or MAF.
  • Throttle position (TPS)
  • Accelerator pedal position (APPS)
  • Heated Oxygen sensor in exhaust (H02S)
  • Wheel Speed Sensor
  • Tire Pressure sensor (TPMS)
  • Intake/Ambient Air Temp (IAT) "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

Mar 24, 2016 | Cars & Trucks

2 Answers

Where is the crankshaft position sensor located on a 2008 HHR 2.2 is that ecotec engine


My info says it is located above the starter motor. Info says to remove the starter.

The info also says you have to do a crankshaft variation relearn procedure. I can't help you with that procedure.

Nov 18, 2015 | Cars & Trucks

1 Answer

I have a 2003 Kia Sorrento it backfires and dies when it gets to normal temperature and this has started after I changed my water pump. I checked my temperature sensor and it is good. What could else could...


Please check the following:
- Manifold Absolute Pressure sensor (MAP) or MAF.
- Fuel injector's connectors and wiring.
- Ignition coil's connectors and wiring.
- Vacuum hoses and pipes.
- PCV Valve.
- Spark plugs for any cracks on the insulators.
- Spark plugs gaps.
- Fuel pump pressure.
- Engine Coolant Temperature sensor.
- Cam position sensor.
- Crankshaft position sensor.
- Valve timing.

Mar 13, 2015 | 2003 Kia Sorento

1 Answer

Color of wires on iat sensor on a 2004 ford exploer 4.0 v6


I don't believe it has an IAT, (Intake Temperature Sensor). Heres what it has. Hope this helps. Cobra..
Electronic Engine Controls adobe.gif Printable View (63 KB) The electronic engine controls consist of the following:
  • powertrain control module (PCM)
  • throttle position (TP) sensor
  • engine coolant temperature (ECT) sensor
  • camshaft position (CMP) sensor
  • crankshaft position (CKP) sensor
  • mass air flow (MAF) sensor
  • heated oxygen sensor (HO2S)
  • knock sensor (KS)
The PCM carries out the following functions:
  • accepts input from various engine sensors to compute the fuel flow rate necessary to maintain a prescribed air/fuel ratio throughout the entire engine operational range.
  • outputs a command to the fuel injectors to meter the appropriate quantity of fuel.
The TP sensor:
  • sends the PCM a signal indicating the throttle plate angle.
  • is the main input to the PCM from the driver.
The ECT sensor:
  • sends the PCM a signal indicating engine temperature.
  • voltage decreases as coolant temperature increases.
The CMP sensor:
  • sends the PCM a signal indicating camshaft position used for fuel synchronization.
The CKP sensor:
  • sends the PCM a signal indicating crankshaft position.
  • is essential for calculating spark timing.
The MAF sensor:
  • uses a hot wire sensing element to measure the amount of air entering the engine. Air passing over the hot wire causes it to cool.
The front HO2S:
  • creates a voltage signal dependent on exhaust oxygen content.
  • provides feedback information to the PCM used to calculate fuel delivery.
The rear HO2S:
  • monitors oxygen content after it flows through the catalytic converter.
  • provides a voltage to the PCM used to calculate catalytic converter integrity.
The KS:
  • is used to detect engine detonation.
  • sends a voltage signal to the PCM.
  • is able to provide a signal which retards the ignition timing, as necessary.

Jun 12, 2010 | 2004 Ford Explorer

1 Answer

I need a diagram of the exhaust system on a Mazda 626


0996b43f80203328.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Component Location Chart-2000 MPV

1 PCM 2 Mass air flow (MAF)/intake air temperature (IAT) sensor 3 Throttle position (TP) sensor 4 Fuel tank pressure sensor 5 Engine coolant temperature (ECT) sensor 6 Crankshaft position (CKP) sensor 7 Camshaft position (CMP) sensor 8 Knock sensor 9 Heated oxygen sensor (HO2S) (front, LH) 10 Heated oxygen sensor (HO2S) (front, RH) 11 Heated oxygen sensor (HO2S) (rear, LH) 12 Heated oxygen sensor (HO2S) (rear, RH) 13 EGR boost sensor 14 Power steering pressure (PSP) switch 15 Main relay


0996b43f8020330c.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Component Location Chart-2001 MPV

1 PCM 2 Mass air flow (MAF)/Intake air temperature (IAT) sensor 3 Throttle position (TP) sensor 4 Engine coolant temperature (ECT) sensor 5 Crankshaft position (CKP) sensor 6 Camshaft position (CMP) sensor 7 Knock sensor 8 Heated oxygen sensor (HO2S) (front, LH) 9 Heated oxygen sensor (HO2S) (front, RH) 10 Heated oxygen sensor (HO2S) (rear, LH)* 11 Heated oxygen sensor (HO2S) (rear, RH)* 12 EGR boost sensor


0996b43f8020330f.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Component Location Chart- 2002-06 MPV

May 22, 2010 | 2004 Mazda MPV

2 Answers

97 F150 4.6 4X4 supercab , code 0153 O2 sensor slow response,Bank 2 sensor 1. Is this the passenger side and sensor before the cat? Also code 1151 I have no reference for this code,not sure what it is....


SECTION 303-14: Electronic Engine Controls 2000 Expedition/Navigator Workshop Manual DESCRIPTION AND OPERATION Electronic Engine Controls The electronic engine controls consist of the:
  • powertrain control module (PCM)
  • throttle position (TP) sensor
  • idle air control (IAC) valve
  • engine coolant temperature (ECT) sensor
  • camshaft position (CMP) sensor
  • crankshaft position (CKP) sensor
  • mass air flow (MAF) sensor
  • intake air temperature (IAT) sensor
  • heated oxygen sensor (HO2S)
  • knock sensor (KS)
  • vehicle speed sensor (VSS)
  • cylinder head temperature (CHT) sensor
The PCM needs the following inputs to calibrate the engine correctly:
  • engine rpm
  • engine coolant temperature
  • amount of engine detonation
  • crankshaft position
  • air temperature
  • throttle position
  • cylinder head temperature
  • mass air flow
The TP sensor:
  • sends the PCM a signal indicating the throttle plate angle.
  • is the main input to the PCM from the driver.
The IAC valve:
  • controls bypass air around the throttle plate at low speeds.
  • is controlled by the PCM.
The ECT sensor:
  • sends the PCM a signal indicating engine temperature.
  • resistance decreases as coolant temperature increases.
The CMP sensor:
  • sends the PCM a signal indicating camshaft position used for fuel synchronization.
The CKP sensor:
  • sends the PCM a signal indicating crankshaft position.
  • is essential for calculating spark timing
The MAF sensor:
  • sends the PCM a signal indicating mass airflow rate of air entering the engine.
The IAT sensor:
  • sends the PCM a signal indicating the temperature of the air entering the engine.
  • resistance decreases as temperature increases.
The HO2S:
  • has the ability to create a voltage signal dependent on exhaust oxygen content.
  • provides feedback information to the PCM used to calculate fuel delivery.
The 4.6L KS is located in the lifter valley. The 5.4L has a unique linear KS located in the lifter valley.
  • The KS sends a signal to the PCM indicating engine detonation.
The CHT sensor:
  • is mounted into the wall of the cylinder head and is not connected to any coolant passages.
  • sends a signal to the PCM indicating cylinder head temperature.
    • If the temperature exceeds 126°C (258°F) 5.4L, 130°C (265°F) 4.6L, the PCM disables four fuel injectors at a time. The PCM will alternate which four fuel injectors are disabled every 32 engine cycles. The four cylinders the are not being fuel injected act as air pumps to aid in cooling the engine.
    • If the temperature exceeds 154°C (310°F) 5.4L, 166°C (330°F) 4.6L, the PCM disables all of the fuel injectors until the engine temperature drops below , 154°C (310°F) 5.4L, 153°C (308°F) 4.6L.
The VSS:
  • is gear driven by the transmission.
  • sends a signal to the PCM indicating vehicle speed. For additional information, refer to Section 307-01A R4100 and/or Section 307-01B 4R70W
-----------------------------------------------------------
P1151 - Lack of HO2S-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

P1130 - Lack of HO2S-11 Switch, Fuel Trim at Limit The HEGO Sensor is monitored for switching. The test fails when the HO2S fails to switch due to circuit or fuel at or exceeding a calibrated limit.
  • 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)
A fuel control HO2S PID switching across 0.45 volt from 0.2 to 0.9 volt indicates a normal switching HO2S.

P0153 - HO2S Sensor Circuit Slow Response (HO2S-21) See DTC P0133

P0133 - HO2S Sensor Circuit Slow Response (HO2S-11) The HEGO Monitor checks the HO2S Sensor frequency and amplitude. If during testing the frequency and amplitude were to fall below a calibrated limit, the test will fail.
  • Contaminated HO2S sensor.
  • Exhaust leaks.
  • Shorted /open wiring.
  • Improper fueling.
  • MAF sensor.
  • Deteriorating HO2S sensor.
  • Inlet air leaks.
Access HO2S test results from the Generic OBD-II menu to verify DTC.

Apr 20, 2009 | 2000 Ford Expedition

1 Answer

Need to find out what color the vss wire is under hood


you don't have a vehicle speed sensor (VSS). You have a wheel speed sensor that tells the PCM vehcile speed in place of the VSS. What are you tring to do?
------------------------------------------------------------------------------------
The electronic engine controls consist of the following:
  • powertrain control module (PCM) (12A650)
  • throttle position sensor
  • idle air control valve
  • camshaft position sensor
  • crankshaft position sensor
  • mass air flow sensor
  • intake air temperature sensor
  • heated oxygen sensor—front
  • heated oxygen sensor—rear
  • knock sensor
  • cylinder head temperature (CHT) sensor
  • power steering pressure (PSP) switch
  • Wheel speed sensor
The powertrain control module needs the following inputs to calibrate the engine properly:
  • camshaft position
  • engine rpm
  • engine coolant temperature
  • amount of engine detonat

Feb 28, 2009 | 1999 Lincoln Town Car

1 Answer

Car keeps dying


Trouble Code 33 and 34 are the MAF/MAP Sensor Circuit. It sounds like you've replaced that sensor already. Did you also have the code 34 before putting in the new sensor?
Or did this code start after it's replacement? Any other codes appearing?

Troubleshooting it would depend if it has the Speed Density Update. The dealer should be able to provide that info.

Here's your fault code list:

13 oxygen sensor circuit 14 coolant temp sensor circuit (high temp) 15 coolant temp sensor circuit (low temp) 21 throttle position sensor (TPS) circuit (high signal) 22 throttle position sensor (TPS) circuit (low signal) 23 manifold air temp (MAT) circuit (low temp) 24 vehicle speed sensor (VSS) circuit 25 manifold air temp (MAT) circuit (high signal) 31 wastegate solenoid electrical circuit 32 exhaust gas recirculation (EGR) circuit 33 mass air flow (MAF) circuit (gm/sec high) 34 mass air flow (MAF) circuit (gm/sec low) 41 cam sensor circuit 42 C3I EST or bypass circuit failure 43 electronic spark control (ESC) circuit 44 oxygen sensor circuit (lean exhaust) 45 oxygen sensor circuit (rich exhaust) 51 PROM error 52 calpak error 55 ECM error

Aug 07, 2008 | 1989 Buick Regal

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