P0037 Code - Nissan Armada Forum: Armada & Infiniti QX56 Forums
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post #1 of 3 (permalink) Old 10-20-2014, 07:08 PM Thread Starter
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Garage
P0037 Code

I get the P0037 code

I have the JBA Long tubes
Cajun Catted B Pipes
Magnaflow Muffler

I had this code before I replaced all this stuff. Put all this stuff on and forgot the crapped out O2. I replaced the O2 and it came back on. Is this an issue with the Cajun pipes?

Any suggestions would be helpful. I am about to dump a brand name O2 in and want to make sure this is not gonna happen again.
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post #2 of 3 (permalink) Old 10-23-2014, 06:30 PM
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call cajun, they are usually very helpful
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post #3 of 3 (permalink) Old 10-23-2014, 07:50 PM
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P0037 code refers to the sensor in the B pipe on the driver's side.
The current amperage in the heated oxygen sensor
2 heater circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.)
Either the sensor is bad or the wiring and/or connector is bad. Inspect the connectors to see if the are properly joined and look for wiring damage.
Since you replaced the sensor look carefully at the wiring and check for any exhaust leak.

2004 Armada SE, Throttle body coolant bypass, Grounding kit, modified Volant CAI with Amsoil dry element, custom engine cover, trailer brake controller, Michelin M/S2s, custom lower grill, Silver Star headlights, Bilstein HD shocks, Power Stop Drilled/Slotted Rotors, ceramic pads, Goodridge SS brake lines, interior and back-up LEDs, PLM transmission pan, trans radiator cooler by-passed, all Amsoil synthetic lubricants, Nismo headers, custom 3" SS exhaust system with high flow metallic core cats, UpRev tuner version, 318 rear wheel HP.

Last edited by scr38; 10-23-2014 at 07:52 PM.
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