I am in the middle of installing a 4-wire O2 sensor and an A/F gauge on my BPT. I have done all the reasearch and I am sure all the wires are connected properly.
Here's the problem: If I connect the gauge directly to the sensor it gives me a proper reading of 0.7V-0.9V depending on temperature. Now, whenever I connect the O2 sensor wire that goes to the ECU (Blue/Red stripe for GTR), the Voltage drops to -0.03V and the A/F gauge stops working completely! Any ideas?
Here's the problem: If I connect the gauge directly to the sensor it gives me a proper reading of 0.7V-0.9V depending on temperature. Now, whenever I connect the O2 sensor wire that goes to the ECU (Blue/Red stripe for GTR), the Voltage drops to -0.03V and the A/F gauge stops working completely! Any ideas?
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