0
Would a vehicle speed sensor circuit cause a 1991 GMC truck to run poorly and if so why?
Wiki User
∙ 19y ago
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.
Wiki User
∙ 19y ago
Add your answer:
Earn +20 pts
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.
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 would cause a car to run poorly until it reaches operating temp?
I would test the temperature sensor first. Then have the car scanned.
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.
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.
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.
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?
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.
Has a Chevy s-10 have a crankshaft sensor?
It would depend on what year the vehicle is.
Would a bad oxygen sensor require starting fluid to start the vehicle?
no
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
How do you change a vehicle's engine sensor?
The procedure for changing a vehicle's engine sensor varies from vehicle to vehicle and from sensor to sensor, as there are different types. There are a large number of questions related to this topic already posted - and answered. Perhaps an "Advanced Searth" with something like "Oxygen sensor, 2004 Mazda Miata" would locate the answer sought. We're here to help, but there are limits to how much we can help that are built into the question, as is the case here.
