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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 21, 2004
International Automotive Technicians' Network (iATN) - Members Only
(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for Asian
Help Request Answers
1993 Toyota Corolla 1.6L MIL Lamp on
Hi guys, Sorry to bother you but I have a Toyota that's giving me a headache! The problem is code 21. A Haynes manual that I have states that the 2 wire sensors are heated. One wire sensors are not. I have a 2 wire (wire colors are brown and black). The man... Trouble codes: 21 (Oxygen Sensor Signal)

Fixes & Summaries for Asian
Fix/Summary Answers
1991 Toyota Tercel DLX 1.5L Stall VIN: JT2EL43E4M
Thank you to all that replied.. The vehicle has not returned for me to retest and check some of the items, you suggested. I will reply when the vehicle returns Trouble codes: 24 (intake air temp sensor), 42 (speed sensor).
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