Question about 2010 Mazda CX-7 2.3
Diagnostic PO134--what is that?
Posted by Anonymous on
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Posted on Jan 02, 2017
bank 1 is the bank of cylinders closest to the firewall. the sensor will be located along the exhuast from that side after the catylitic converter
Posted on Apr 01, 2010
a V6 or V8 engine the driver's side cylinders are one bank and the
passenger side, the other bank. I would imagine "Bank 2" is the side without the the #1 cylinder on it. The sensor is screwed into the exaust manifold which is bolted to the cylinder head. "Sensor 1" denotes it from the downstream (post catalytic converter) sensor(s), which is referred to as "Sensor 2"
Posted on Dec 01, 2010
could anyone please help me with this problem that i have with my 2001 mazda protege es 2.0. i have a bad catalyst converter and im waiting for the converter to come in, but before the guys that are fixing on my car relize that i need a converter they put a egr valve and a o2 senor and when the car idle some time it will just die one me. could someone tell me what is going on.
Posted on Dec 24, 2010
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HO2S-11 (Bank 1 Sensor 1) Insufficient Activity
HO2S heater is damaged or has failedHO2S signal or ground circuit has a high resistance conditionHO2S signal circuit is open or shorted to system power (B+)HO2S has failed (i.e., it is silicon, water or fuel contaminated)PCM has failed.Sounds like you need a new oxygen sensor,Bank 1 Sensor 1 is located on the exhaust manifold, closest to the front.Here's a link to the firing order,bank one is cylinder one side.Here's the part you need,here's how to replace.
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