Question about 1990 Toyota Corolla
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Posted on Jan 02, 2017
SOURCE: Engin light is on
take the vehicle to an autozone they will connect it to the computer and tell you what error code is in there and that will tell you where to start in regards to fixing the problem.
Posted on Dec 02, 2008
You need to check for engine codes to see what is wrong. Bring it to a parts store for a free scan for codes. The check engine light indicates a problem, probably the emissions system, which is causing the poor performance. The parts store will plug a hand held scan tool into the cars diagnostic port (usually located under the dash) and 'read' any codes stored in the cars computer. They can them tell you what code #'s come up, what they mean, and how to correct the problem. If you have any questions after that, post them here w/ the code #;s for further help.
Posted on Jul 27, 2009
As a rule of thumb, oil and filter every 3000 miles, air filter everyt 20,000 miles, transmission oil every 50,000 miles and spark plugs every 80,000 miles.
Posted on Jul 29, 2010
Check that the ignition timing is set correctly. Use a timing light and set the timing to 10 deg Before Top Dead Center (BTDC). Check the fuel pump pressure output. If you still lack power, it could be that the exhaust system is restricted.
One test you can do is to remove the oxygen sensor. With the sensor removed, start and run the car. The exhaust will be loud with the sensor removed, but see if the engine's power is improved. If it has greatly improved power, the exhaust pipe has a restriction. A very common restriction is that the catalytic converter is internally damaged. Changing the catalytic converter will be necessary if this is the problem. The internal honeycomb of the converter can melt down and turn to **** or it can break down into a coarse sandy substance that can clog the converter exit.
Posted on Apr 01, 2011
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