My Toyota manual for a 1991 Corolla DX says that error code #71 is used only for California specifications. Here is the official diagnosis, according to the manual: the EGR gas temperature sensor signal (THG) is below the total temperature of the intake air temperature plus 55 deg Cent. (99 degrees F) after driving for 25 seconds in EGR operation range. The manual then lists five trouble areas: 1- Open in EGR temperature sensor circuit; 2- Open in VSV circuit for EGR, 3- EGR vacuum hose disconnected, valve stuck; 4- Clogged in EGR gas passage; 5 - ECU.
How do I get engine codes for 1999 toyota corolla?
The 2008 Toyota Corolla has an inline 4 engine.
The 2004 Toyota Corolla has an inline 4 engine.
The 2011 Toyota Corolla has an inline 4 engine.
The 2003 Toyota Corolla has an inline 4 engine.
The 2002 Toyota Corolla has an inline 4 engine.
The 2001 Toyota Corolla has an inline 4 engine.
The 2006 Toyota Corolla has an inline 4 engine.
The 2007 Toyota Corolla has an inline 4 engine.
The 2010 Toyota Corolla has an inline 4 engine.
The 2012 Toyota Corolla has an inline 4 engine.
The 2014 Toyota Corolla has an inline 4 engine.