The check engine light on my 94 accord 2.2l non vtec has been on probably for the past 100k miles. Put a code reader on it today and the only code that came up was p0135 with the statement o2 heater circuit bank 1 sensor 1. Would that be the o2 sensor that is in the exhaust manifold?

 

Try these links
Part 1 -Trouble Code: P0135 Test 2.2L, 2.3L Honda Accord (1995-2002)


P0135 Honda 2.2L - How To Test a 02 Sensor

 

Thanks for the links. Good info there.