it is a defective speed sensor.
If the speedometer in your 1990 Honda Acura Legend is not working, it could be due to a faulty speed sensor, a broken speedometer cable, or an issue with the instrument cluster itself. The speed sensor, located on the transmission, measures the vehicle's speed and sends that information to the speedometer. If the cable is damaged or disconnected, it can also result in a non-functioning speedometer. Lastly, electrical issues or a malfunction within the instrument panel can cause the speedometer to fail.
speed sensor is out or is going out. your speedometer is out too right?
You have a bad Vss Sensor.............. The vehicle speed sensor.
The speedometer in an Acura Legend may stop working due to a malfunctioning speed sensor, which sends speed information to the gauge. Additionally, issues with the vehicle's wiring or connections, a broken speedometer cable, or problems within the instrument cluster itself can also cause this failure. It's advisable to have the vehicle inspected by a professional to diagnose and resolve the issue accurately.
1. If it's a cable type from the speedo to the gearbox, the inner cable may need lubrication
One indication of a bad sensor is when your speedometer bounces around, shakey, or jumpy.
Acura Legend was created in 1986.
A malfunction.
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Flickering dash lights and a malfunctioning speedometer in a 1991 Acura Legend may be caused by issues with the vehicle's electrical system, such as a failing alternator or weak battery. Additionally, problems with the vehicle’s speed sensor or wiring connections can lead to erratic speedometer readings. Grounding issues or a faulty instrument cluster could also contribute to these symptoms. An inspection of the electrical components and connections is recommended to diagnose the exact cause.
Were are the timing marks on a 1991 acura legend