1998 Honda Odyssey 4 cyl Front Wheel Drive Automatic 130000 miles
This is basically the same engine as a 1998 honda accord. I had the check engine light come on and Autozone told me it was a P0135 and that I needed a new oxygen sensor. I purchased a Bosch direct fit and had it in without trouble. But. The check engine light remained. I took it to Autozone to have them clear it to no avail. It came right back on. I went home and double checked everything. No loose or burnt wires. Connector snapped on tightly.
Googling the code, I've come to realize that the code is specifically for "Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)". This vehicle only has two O2 sensors and I verified that I had in fact replaced the one before the Cat.
This leads me to believe that the problem is in the circuit away from the O2 sensor. I know that there is a relay that provides power to the O2 sensor but it also provides power to the other O2 sensor and a couple of other sensors.
I might check for voltage in the wires tomorrow, but I'm pretty sure I know what I'll get. (I'll have to clamp the wires while a friend turns the key to on.)
Ideas on which relay to check? Which one is it?
Any other ideas?
have the same problem?
Monday, July 14th, 2008 AT 11:13 PM