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![]() Enthusiast ![]() ![]() ![]() Joined May 10, '14 From Tulsa, OK Currently Offline Reputation: 5 (100%) ![]() |
Hello: After installing the header and getting it all set, I am getting these two codes. I reset them once and these two come back again. I will check for leaks etc and the reading on the first O2 sensor (7aFE engine stock, 1996 ST HB). What else I need to look for?
How do I check for sensor circuit heater? thanks in advance. This post has been edited by msk59: Jan 8, 2016 - 1:25 PM |
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Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Mar 11, '06 From Way South Chicago Currently Offline Reputation: 0 (0%) ![]() |
Most time heater circuit codes are just bad heater circuits, it's a little heating coil in the sensor and it does burn out with age. The fastest way to check them is with a noid light. http://www.amazon.com/Lisle-27800-Universa...ords=noid+light
Connect that to the heater circuit wires (the two blacks on the O2 sensor are heater circuit), it should flicker and flash when you start the car, indicating the circuit is working. You can also hold the O2 sensor in your hand out of the exhaust pipe and start the car and it should get rather hot in your hand. -------------------- |
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Lo-Fi Version | Time is now: July 18th, 2025 - 4:12 PM |