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WOULD A FAULTY VSS CAUSE THE CAR TO CUT OUT WHEN PULLING UP AFTER THE THROTTLE IS RELEASED.

I HAVE REPLACED THE IDLE SPEED SENSOR.

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  • mick proudman Nov 22, 2014

    COULD REPLACING THE CAR BATTERY ALSO CAUSE THIS TO HAPPEN

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  • Cars & Trucks Master
  • 22,326 Answers

More like a faulty EGR valve ,make a gasket from a coca cola can and block it off then try it

Posted on Nov 22, 2014

Testimonial: "Hi,thanks,I will let you know how I get on.one thing,this is a petrol model,does it have a egr valve?"

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02 s 60 p2177-po500 engine wont rev over 2000rpm ,pulled out 02 sensor made no difference?


code p 1077 refers to system too lean off idle --bank 1 ====causes --fuel pressure ---injectors--intake leak
also refers to adaptive heated oxygen sensor (HO2S) control bank 1--signal high====causes ---wiring--short to positive ---HO2S---ECM
The HO2S is the sensor in the exhaust manifold before the cat converter and is responsible for setting the mixture

code p 0500 refers to the Vehicle speed sensor (VSS)---circuit malfunction====causes --wiring ---VSS--- ECM
replace the VSS

Nov 25, 2017 | 2002 Volvo S60

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2011. Why has cruise control failed?


cruise controls are controlled by several units
VSS or road speed sensor, clutch and brake sensors , engine speed (tacho) and the on/off switch
cruise controls will disengage automatically if the road speed is too slow ( higher for manuals than autos ) so if the road speed is below around 20mph it may not engage at all as the VSS says it is too slow for the engine rpms
check all sensors for adjustment

Aug 30, 2015 | Jeep Liberty Cars & Trucks

1 Answer

Transit van cutting out


Okay, no codes and cut out and low idle,

I have seen this on many types of cars and trucks, first have the tech clean the throttle body, make sure he uses a good cleaner and tooth brush, open the plate with his fingers and brush carbon build up off throttle body and plate then rinse clean with throttle body cleaner, next check and clean mass air flow sensor ,

What happens is the throttle plate when closed allows a small amount of air to pass, after time carbon build up closes the gap little more causing lower idle at stops or when gas pedal released in turn causes engine stall at times, the mass air flow sensor also can cause a problem when diodes that read air flow get dirty and allows air to enter without computer knowing and causes lean condition,

Aug 12, 2012 | Cars & Trucks

1 Answer

02' Jeep liberty speedometer is fluctuating between 0 and 90 miles per hour at idle. And if you accelerate it goes to 120 mph and stays there. If you stop at a stop sign/light it starts dinging until you...


The VSS - vehicle speed sensor possibly or maybe the TPS - throttle position sensor . I know TPS sensors can cause an erratic idle ,or surge. Hooking up a professional type scanner to the DLC - diagnostic link connector an checking the VSS input to the PCM - engine computer would be the best way to diagnose . Also checking speed sensor info the PCM sends to the Instrument cluster . Do you know what serial data networks are or computer data lines ? The PCI bus is a communication network for all the modules (computers ) on your vehicle . The modules share information on this data line . It's suppose to cut down on wiring harness size.( # of wires). Your best bet , take it to a qualified repair shop that has the right diagnostic tool's .
006 Chrysler PCI Communications

Nov 08, 2017 | Cars & Trucks

2 Answers

I have replaced my fuel pump, filter, throttle position sensor, and relay on my 1992 jimmy. it runs but everytime it hits idle speed it cuts off. what could that be


It should have an idle air control valve which lets air into the intake to control the idle speed. The valve could be faulty, or dirty, or the throttle body could be dirty. The computer opens and closes the valve to regulate idle speed.

Jul 16, 2012 | 1992 GMC Jimmy

1 Answer

Faulty speedometer


Hi there:
This is a common problem on Mazda, it is usually caused by a faulty vehicle speed sensor. I would take a look at the wiring and connector to the vehicle speed sensor. If the wiring and connector look to be in good condition, replace the vehicle speed sensor. The sensor is on the transmission near the cv axle. It is held in by one bolt.
VEHICLE SPEED SENSOR (VSS) REMOVAL/INSTALLATION Disconnect the negative battery cable.Disconnect the VSS connector.
3_19_2012_3_49_05_pm.gif
Remove the VSS.Apply ATF to a new O-ring and install it on a new VSS.Install the VSS. Tightening torque7.9 - 10.7 Nm (80 - 110 kgf.cm, 69.5 - 95.4 inch lbs.) Connect the VSS connector.Connect the negative battery cable.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Mar 19, 2012 | Mazda Protege Cars & Trucks

1 Answer

Speedometer faulty


Hi there:

This is a common problem on Mazda, it is usually caused by a faulty vehicle speed sensor. I would take a look at the wiring and connector to the vehicle speed sensor. If the wiring and connector look to be in good condition, replace the vehicle speed sensor. The sensor is on the transmission near the cv axle. It is held in by one bolt.
VEHICLE SPEED SENSOR (VSS) REMOVAL/INSTALLATION Disconnect the negative battery cable.Disconnect the VSS connector.
3_19_2012_3_49_05_pm.gif
Remove the VSS.Apply ATF to a new O-ring and install it on a new VSS.Install the VSS. Tightening torque7.9 - 10.7 Nm (80 - 110 kgf.cm, 69.5 - 95.4 inch lbs.) Connect the VSS connector.Connect the negative battery cable.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day

Mar 19, 2012 | Cars & Trucks

1 Answer

Hyundai Tucson - engine loses power whilst driving, it does not cut out completely. Sometimes also struggling at idle


The drivability issue you describe has a multitude of possible causes. The best advice I can give you is that you take/tow the vehicle to the local/nearest Hyundai Service Department and have it properly diagnosed. Possible causes:
#1. Fuel delivery (Fuel Pump pressure, Injector(s) clogged/leaking)
#2. Vacuum Leak(s)
#3. Faulty Throttle Position Sensor (TPS)
#4. Electrical (Wiring)
#5. Faulty Sensors (Crank Position Sensor, Cam Position Sensor, Idle Speed Control Actuator, Faulty Manifold Absolute Pressure Sensor, etc.)
#6. Contaminated Fuel
#7. Faulty Powertrain Control Module (PCM)
Best advice, get is properly diagnosed.

Jun 10, 2011 | Hyundai Tucson Cars & Trucks

1 Answer

Hi i have a 1999 ford cougar and the speedo is faulty sumtimes it works n sometimes it dont wen it doesnt it idles irraticly and sumtimes cuts out wot could this be?


I think you may have a faulty vehicle speed sensor (VSS). It is located in the transmission behind the engine. It does control the speedometer and the computer uses the speed signal to adjust fuel. You would really need someone to attach a scan too and look at the vss readings to see if they are erratic.

Apr 03, 2010 | 1999 Ford Escort

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

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