AFR's off between banks HELP!

12nismo

Yea, I'm ordering the 02 sensor today and I've been taking it easy on the car since I found this problem. However, I've been driving it hard before then and dont know how long this problem has been there. Since I switched the sensors and the problem moved to the other bank, then Its obviously something to do with the sensor/wire/connector. I just worry that because its taking these bad readings, the ECM will try to compensate and end up hurting the motor. My main concern is when I let off the gas (engine brake) and one bank goes to 30 AFR and the other bank is in the 20's. My injector pulses stay the same, so I assume its not adding any fuel, but I dont really know how all that works.

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nismo Z34 12 0209
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