I temporarily installed my Auto Meter AFR gauge today. I say temporary because I'm trying to get an A-pillar pod that is blue like the rest of the interior. Also because of this temporary position, I soldered the other end of the gauge's sensor wire to make it stiff, and inserted it in to the pin on the diagnostics connector for the single wire O2 sensor, not the 3-wire sensor on the elbow. It is powered by the stereo's ignition switch power wire, and grounded to the chassis.
The gauge seems to be working perfectly, it reads the slightest blip of the throttle. My question is more related to how the ECU mixes fuel, I suppose. Here's the issue, when cruising the gauge bounces back and forth between the high and low stoichiometric range when the ECU is closed-loop, as it should. But if I give it enough gas to spool the turbo it goes into the rich and stays put. I was under the impression that it only runs open-loop at or near WOT. I guess I just want someone to tell me that it's perfectly normal, and I'm stressing on nothing.
This is my first turbo vehicle so I'm trying not to blow her up. :love:
The gauge seems to be working perfectly, it reads the slightest blip of the throttle. My question is more related to how the ECU mixes fuel, I suppose. Here's the issue, when cruising the gauge bounces back and forth between the high and low stoichiometric range when the ECU is closed-loop, as it should. But if I give it enough gas to spool the turbo it goes into the rich and stays put. I was under the impression that it only runs open-loop at or near WOT. I guess I just want someone to tell me that it's perfectly normal, and I'm stressing on nothing.
This is my first turbo vehicle so I'm trying not to blow her up. :love:
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