Where is the O2 sensor on 1993 Toyota Mr2
To change the alternator on a 1991 Toyota MR2, first disconnect the negative battery terminal to ensure safety. Remove the drive belt by loosening the tensioner, then detach the alternator by unbolting it from its bracket. Disconnect the electrical connections, then install the new alternator by reversing the process—reattaching the electrical connections, securing it in place, and reapplying the drive belt. Finally, reconnect the battery terminal and test the new alternator.
how to fix speedometer for Toyota mr2
by the oil dip stick
Problem with the charging system. Most likely the alternator is defective.
under the hood behind the spare tire.
Pictures and instructions are found here: http://www.padandwheels.com/mr2/thermostat/thermostat.html
The Toyota mr2
unbolt the negative power wire unplug the positive power wore remove the tension bolt on the top of the alternator remove the lower bolt and pull out the alternator
For MR2 2.2, production years 1991 and 1993 the firing order is (1,3,4,2).For other years I don't know.
see this page for pictures and instructions: http://www.padandwheels.com/mr2/alternator/alternator.html
To check the alternator on your 1988 Toyota MR2, first ensure the battery is fully charged and the connections are clean and tight. Start the engine and use a multimeter to measure the voltage at the battery terminals; it should read between 13.8 to 14.4 volts if the alternator is functioning properly. If the voltage is lower, the alternator may not be charging the battery effectively. Additionally, listen for any unusual noises from the alternator and check for signs of wear or damage to the belts and connections.