Question about 1991 Honda Accord
Hi there Just to be absolutely sure, I'm correct in assuming that the economy light should light-up when you are driving economically? If that is the case, then this works as a result of a vacuum sensor attached to the inlet manifold which sounds like it might be faulty. The sensor is effectively determining whether you are driving using a light throttle (economically) as apposed to partial or full throttle (uneconomically). Try identifying the vacuum sensor switch and check the wiring is intact and secure. If it is, simply disconnect the wires from the sensor. Drive the car and see if the light is now off all the time. If the light is still on all the time, switch off the engine and ignition, bridge the disconnected electrical connection and drive the car again. If the light is now off all the time, then it's probably the vacum sensor switch that's keeping the economy light on all the time. It's either an electrical connection, faulty switch or very simply that the vacuum hose to the switch is broken or fallen off. Best regards, Scottech
Posted on Jun 16, 2009
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Posted on Jan 02, 2017
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