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No. You have other problems involving the induction, fuel pressure, or spark on the engine. If the check engine light hasn't come on, then a good place to start is with is the fuel and air filters. If they are good, then next would be plugs and wires. Also look for vacuum leaks. We had an 87 that ran terribly, replaced all the above, and found out that the MAP sensor was bad. No codes coming from the PCM. Frustrating, and time consuming.

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โˆ™ 2004-12-18 06:12:24
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Q: Would a vehicle speed sensor circuit cause a 1991 GMC truck to run poorly and if so why?
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Related Questions

Why does your 1987 Chevy g-30 flash code 45?

Oxygen Sensor Circuit (Rich Exhaust). This may of may not be a defective O2 sensor. It may be something else that is effecting the O2 sensor. But considering the vehicle is 22 years old, I would suspect the O2 sensor needs replacing. I would replace the O2 sensor.

What would happen if you unplug the engine speed sensor?

It would depend on the vehicle. most likely the vehicle would run, but not well. this puts the computer in limp home mode. most car computers will allow the vehicle to run with one major sensor undone.

Where is it on the truck 2003 blazer 02sensor heater circuit malfunction bank 1 sensor 2?

The bank 1 sensor 2 O2 sensor on that vehicle should be the sensor after the catalytic converter. Inspect the wiring for damage, cuts and such, if the wiring looks okay it is probably the heater circuit within the sensor, replace the sensor. Unplug the wire harness from the sensor and cut the wires off at the sensor. This will allow you to slip a 7/8" box wrench over the sensor to remove it. Install the new sensor using a 7/8" open end wrench, tighten it as you would a spark plug. Reconnect the wire harness.

What is an tp sensor How much does an tp sensor cost?

A TPS is normally known as a "throttle positioning sensor" price would be dependant on the vehicle.

What would cause a car to run poorly until it reaches operating temp?

I would test the temperature sensor first. Then have the car scanned.

How do you turn backup senors back on?

To help you turn your backup sensor on I would need more information. What does the backup sensor go on? What type of vehicle? What year is it? an what model vehicle is it?

Would a bad oxygen sensor require starting fluid to start the vehicle?


Need answers condering 1997 Ford Explorer EB?

PLease have the codes read with a scanner and that will point you in the correct direction. If i was to hazard a guess i would say the Vehicle Speed Sensor or circuit has gone bad.

Why would a distributor stop working After breaking a alternator belt?

Knowing the year, make and model vehicle you have would help but, if it has a crankshaft sensor maybe the sensor or the sensor wiring got damaged.

How do you know if map sensor is not working?

The engine would be running poorly and the check engine light should be illuminated with related codes.

What does a speed sensor control?

A Vehicle Speed Sensor (VSS) senses the speed of the vehicle. Used for automatic transmission shift points and other electronics. Another speed sensor would be a wheel speed sensor. This one monitors wheel speed for ABS and Traction control.

Sensors and its applications?

what kind of sensor? tells a chip/circuit the value of something, and then w.e chip/circuit would respond accordingly by doing actions

Has a Chevy s-10 have a crankshaft sensor?

It would depend on what year the vehicle is.

What would cause a p0141 code even tho you have replaced the o2 sensor twice now?

P0141 is heated oxygen sensor circuit malfunction you need to check the supply voltages to the sensor.

How do you replace a P0135 sensor circuit bank 1 sensor 1?

More than likely the heater burned out in the B1 S1 O2 sensor. First locate the B1 S1 O2 sensor, it would be the one threaded into the exhaust pipe directly behind the bank of cylinders that contain the number one cylinder. Inspect the wiring leading to it looking for damage/cuts in the wiring. If the wiring looks good, disconnect the sensor from the vehicle harness, cut the wires off of the bad sensor, slip a 7/8" box wrench over the sensor and remove it by turning counterclockwise. Install the new sensor using an 7/8" open end wrench and tighten as you would a spark plug. Plug the new sensor into the vehicle harness and your done.

Where is the O2 Sensor Circuit Low Voltage Bank 1 Sensor 1 on Park Ave 2004?

Bank 1 would be the bank of cylinders that contains the number 1 cylinder.Sensor 1 would be the sensor placed before the catalytic converter (AKA the upstream sensor).

How do you disable 2007-2010 escalade speed sensor?

You cannot disable a vehicle speed sensor on any EFI vehicle without causing a host of problems. I'm not sure why anybody would want to.

If your vehicle speed sensor is going out would that cause your check engine light to come on?

It could

Why isn't your speedometer working?

Depends on What kind of Vehicle Your Asking About ,And What year If Its A Newer vehicle I Would Say that The VSS Has Went Bad. VSS Means Vehicle ,Speed ,Sensor......

How to locate bank 2 sensor 1 in 2004 sienna given by code P0051-heater contol circuit low?

HO2S (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1)symptomsOther than the MIL light illuminating you may not notice any performance issues.causeA short in the O2 sensor heater circuit or the sensor itselfA faulty O2 sensor heaterWiring or connectors are broken or frayed to the sensor or relayBad PCM or ECMThe fixCorrect wiring short or loose connector found in inspection.and/orReplace the bank 2 sensor 1, O2 sensorReplace PCM if circuit has failed and no wiring issues present, good O2 sensor

What does HO2S heater circuit bank 2 sensor 1 P0050 indicate on a 2002 dodge Dakota 4.7?

P0050: HO2S Heater Control Circuit. H: Heated Oxygen Sensor Bank 2 Bank 1 is the side that cylinder 1 is located on. Bank 2 would be the opposite side. Sensor 1 would be the first sensor in the exhaust line starting at the engine. Most likely the sensor in front of the catalytic convertor. Check the wiring and connector to the oxygen sensor. If wiring is ok, just replace the sensor. Might switch the two sensor to see if the problem follows the sensor. If problem stays on bank 1, then check the circuit wiring.

Why would the thermometer read OC for the outside temp on your 02 Trailblazer?

Open Circuit. Replace the sensor unit.

How do you locate a vehicle speed sensor in a 1997 gmc sierra truck 4 speed authomatic?

Vehicle speed is typically monitored at the transmission output shaft, therefore, the sensor would be located on the transmission tail houseing.

Where is the location of camshaft sensor on a 2.7 liter engine?

It would help if you stated what type of vehicle it is. There are several 2.7 engines in different vehicle types.

How do you replace an oxygen sensor on a 1999 ford expedition 4.6l?

If you are replacing an O2 sensor with a new one, unplug the sensor from the vehicle wire harness, cut the wires off at the sensor, slip a 7/8" box wrench over the sensor and remove the sensor counterclockwise, install new sensor using a 7/8" open end wrench, tighten it as you would a spark plug, reconnect the sensor back into the vehicle harness, done.