Question about 2000 Toyota Corolla
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Posted on Jan 02, 2017
remove phillips scew and the door handle. remove padded arm rest on the door by lifting it up, and remove 2 screws. You can use a panel tool to remove the plastic toggle like pins holding the panel border in. Be as gentle as possible they may break due to becoming brittle.
Posted on Apr 06, 2009
SOURCE: 2000 Toyota Corolla P0171
When the fuel trim is high teens or in the 20s then its the MAF that the problem. If fuel trim is normal, 2-5 then its the O2 sensor.
Buy "Electrickleen" at the parts store.
Remove the MAF sensor, WHILE COLD, and blast the wire inside with cleaner.
The "hotwire" gets gummed up and changes the resistance of the wire so you get a bad input to the ecu and it trys to lean out for a rich condition that doesnt exsist.When it cant adjust anymore it trips the po171 code.
Posted on Jun 01, 2009
It seems this is a fuel problem from the description I get on my scanner for these codes. Is there any way I can get a more in depth explanation than just what shows on the scanner exp. (P0125 closed loop fuel insufficent coolant temp).Changing gas cap and plug wires solved nothing. P-0125 indicates that your thermostat is sticking open. The engine is not warming up enough to change from OPEN loop to CLOSED loop. P-0171 indicates that you have a dirty MASS AIR FLOW SENSOR. Replace the thermostat, and clean the MAF. Then clear the codes and drive it, and recheck for any codes.
Posted on Jun 09, 2009
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