Question about 1991 Toyota Corolla
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
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Dec 16, 2013 | 1991 Toyota Corolla
Jun 04, 2017 | 1994 Toyota Corolla
Sep 11, 2010 | 1994 Toyota Corolla
Aug 19, 2010 | 1995 Toyota Corolla
Jul 08, 2010 | 1993 Toyota Corolla
Nov 05, 2009 | 1994 Toyota Corolla
Aug 24, 2009 | 1984 Toyota Corolla
Mar 26, 2009 | 1994 Toyota Corolla
Feb 07, 2009 | 1991 Honda Civic
304 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: