Question about Honda Accord
Posted on Sep 02, 2011
Its indicating towards issue with map sensor.Try disconnecting and cleaning map sensor terminals and then reconnect and see.If its still the same problem.Then map sensor needs to be replaced and checked.Your engine's Manifold Absolute Pressure (MAP) sensor could be the culprit if you're still getting lousy gas mileage after a tune up.Check the vacuum hose attached to the sensor and make sure it is in good condition and free of obstructions. Make sure there are no loose wires and the sensor's electrical connector is in good shape.-------- To test:--Unplug the electrical connector from the MAP sensor and turn the ignition key on, but do not start the engine. With a voltmeter, measure the reference voltage by touching the reference wire with the meter's positive lead and the negative lead to ground-black wire, which is at the connector's end coming from the computer. If the reference voltage--about 5 volts--is out of specification, you have found the source of the problem.
--------- If map sensor is not working properly,it throws off the whole loop cycle for the computer,,which in turn makes it run badly,,and get poor fuel economy,,it causes one to have a lack of power,,combined with a loss of fuel economy,,and also poor take offs,,and sometimes an occasional stalling.------ --------- This will help,to test and confirm the fault, to replace map sensor.------- Thanks.Helpmech.
Posted on Sep 01, 2011
This would be correct as with the vacumn line off from the regulator then teh valve would close to build pressure up to start the engine ,what you have here is a problem with the mass air flow metering valve in the air intake ,either its faulty or you have two such sensors iam not sure as these cars i only ever see with a manual diesel engine or a small petrol engine of around 1.6 .Check the mass air flow sensor with a automotive multimeter to see what the readings are on idle and as the RPM is brought up and measure the voltages to determine what is wrong.I cannot use a code reader as our europen vehicles do not use a obdii till 2005
Posted on Sep 01, 2011
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Posted on Jan 02, 2017
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