Question about 1997 Subaru Legacy
Make sure that all your spark plugs are gapped to the manufacturer to your car. Yes you should change the Knock sensor if it shows a code for that. The codes you get from any new car usually tells you what part needs to be replaced. check all your fluids to make sure they are all full. check your oil dip stick when your car is off with a rag, when you check your tramsmission that you need to have the car running for about a couple of minutes so the tramsmission fluids gets hot enough to get a good reading because it expands when trams. fluids get hot. If the trams. fluids are little low to shut off car engine and put just a little transmission fluid but do not over fill it because it will destroy tramsmission. when you changed these parts that you should drive the car if this is possible for a couples of miles and then take it to advance auto parts and let them to test the codes again to see if these codes come back again.
Posted on May 24, 2011
The engine should start if knock sensor is faulty.but there will be starting problems noticed if knock sensor is faulty.The knock sensor is a listening device located inside the engine near the intake manifold or the pistons that is designed to detect pressure inside the engine. The vibrations that it records as a result of this pressure are converted into voltage and sent to the car's engine control unit (ECU). This is to prevent detonation in the engine when the fuel/air mixture explodes too quickly and causes engine knock or "pinging." The ECU takes the information provided by the knock sensor and adjusts the ignition timing to the engine.------------
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May be the fuel pressure got too low or coil not giving power to spark plugs causing this no start problem-------
Get the voltages from battery to starter, coil to spark plugs, the fuel pump relay voltage in engine compartment under hood.Also check the compression for spark plugs and check the voltage to injectors and condition of injectors too.-------------
This should help.Thanks.Helpmech.
Posted on May 24, 2011
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Posted on Jan 02, 2017
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