Oldsmobile Aurora P1153: Causes, Meaning, and Diagnosis

P1153 is not a very common diagnostic trouble code.  It can have different meanings depending on the manufacturer in question. For the Oldsmobile Aurora, it means: P1153:HO2S Insufficient Switching (Bank 2, Sensor 1) As long as your scanner confirms that the code is for insufficient switching of the heated oxygen sensor, you’re good to go.  … Read more

Oldsmobile Aurora P1133:  Meaning, Causes, and Diagnosis

P1133 can have different definitions depending on the vehicle manufacturer in question.  In the case of the Oldsmobile Aurora it means: HO2S Insufficient Switching (Bank 1, Sensor 1) It is typically caused by a failure of the heated oxygen sensor.  But, there can be a few other causes as well.  They are all addressed below. … Read more

Oldsmobile Aurora U0073: Meaning, Symptoms, + Diagnosis

U0073 Definition: Control Module Communication Bus”A” Off U0073 is a fairly common trouble code.  It is generic, so it has the same meaning for your Oldsmobile Aurora as it would any other.  This code appears when something has interrupted the communication between two of your Aurora’s control modules. The most common causes of U0073 are … Read more

Oldsmobile Aurora P2276: B2S3 O2 Sensor Stuck Lean

P2276 is a general diagnostic trouble code.  It means that your Oldsmobile Aurora’s third (from the exhaust manifold) “bank 2” downstream oxygen sensor (behind the catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   Having this code does not necessarily mean that the vehicle is running lean (although it can, but … Read more

Oldsmobile Aurora P2274:  B1S3 O2 Sensor – Stuck Lean

P2274 in the Oldsmobile Aurora is a general diagnostic trouble code.  It means that the “bank 1” oxygen sensor (third oxygen sensor from the exhaust manifold, behind a catalytic converter) is continuously sending voltage that indicates a lean air/fuel mixture.   This does not necessarily mean that the vehicle is running lean (although it can, … Read more

Oldsmobile Aurora P2018:  Meaning + Diagnosis

P2018 is a generic diagnostic trouble code (DTC) that indicates an issue with your Oldsmobile Aurora’s intake manifold runner position sensor/valve (from here on out, we will be referring to this sensor by its common abbreviation of IMRC). P2018 Definition: IMRC – Switch Circuit Intermittent (Bank 1) IMRC The IMRC’s job is to help your Aurora’s … Read more

P0355-Oldsmobile-Aurora

P0355 is a generic OBD II diagnostic code that indicates an issue with the ignition coil “E”. Specifically with the primary or secondary wiring circuits. If your Oldsmobile Aurora has thrown this code, it may be accompanied by P0305.  P0355 is a relatively straightforward diagnosis and is typically caused by a bad coil pack or wiring harness issue, although … Read more