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Discussion Starter · #1 ·
I have a 2014 Chevy Cruze Ltz that recently had a Service Stabilitrak & Service traction control warning come up on my dash. When this happens the car also displays a message saying engine power reduced. Well the the engine power not only gets reduced but the entire engine just shuts off. I’ve replaced the throttle position sensor a couple weeks ago and the negative battery cable just last week. I plan on replacing the ignition coil and spark plugs as I heard that could be the issue. If anyone could help me out with my issue I would greatly appreciate it.
 

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Discussion Starter · #2 · (Edited)
I’m thinking about replacing the crank position sensor again because I recently drove pretty hard on a dirt/gravel road. Again any advice and/or solution would be much appreciated
 

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Discussion Starter · #4 ·
I have my own OBD scanner that I used. I let the car run for about 12 minutes then the same messages popped up and the engine shut off. After that happened I checked the codes and got the following: P0098- intake air temperature sensor 2 circuit high, P0099- intake air temperature sensor 2 circuit intermittent/erratic, P0237- turbocharger boost sensor A circuit low, P0452- evaporative emission system pressure sensor / switch low input, P0641- sensor reference voltage “A” circuit / open, P0651- sensor reference voltage “B” circuit/ open, sensor reference voltage “C” circuit / open, P06A3- sensor reference voltage D circuit / open, P2199 intake air temperature sensor 1 / 2 correlation, P2230 barometric pressure circuit intermittent.
 

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Discussion Starter · #5 ·
I checked the codes on my OBD scan tool before my engine shut off and the only codes that popped up we’re the following: P0641- sensor reference voltage “A” circuit / open, P0651- sensor reference voltage “B” circiut / open, P262B- no DTC definition found. See service manual, P0697- sensor reference voltage “C” circuit / open
 

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Discussion Starter · #6 · (Edited)
With a little more research I’ve found that code P262B could mean a faulty ECM or a bad wire and/or connection coming from or to the ECM.

So I checked the fuses and both look good for my ECM. Did a little bit more research and found that either the throttle body assembly as a whole could possibly be the problem or it could just be the sensor.
 

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If you verify the power and ground circuits to the ECM are okay, and it continues to set the P262B, it's got a bad ECM
 

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2014 LT program car, Pull Me Over Red
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A code P0098 may mean that one or more of the following has happened:

Internally failed #2 IAT sensor
Faulty connection at #2 IAT sensor
Open in IAT ground circuit or signal circuit
Short to voltage in IAT signal circuit or reference circuit IAT harness and/or wiring routed too close to high-voltage wiring (e.g. alternator, spark plug cables, etc.)
Faulty PCM (less likely but not impossible)


Read more at: https://www.obd-codes.com/p0098


Possible causes for the engine code P0099 include:

Open or shorted #2 IAT sensor wiring and/or connectors
Defective #2 IAT sensor
Faulty MAF sensor
Clogged air filter
Broken intake air inlet pipe


Read more at: https://www.obd-codes.com/p0099



Potential causes for the P0237 code to set are:

Faulty boost sensor "A"
Faulty turbocharger
Faulty PCM
Wiring problem


Read more at: https://www.obd-codes.com/p0237


Potential causes for the p0452 DTC include:

Failed fuel tank pressure sensor
Harness to the sensor has an open or short circuit
Faulty electrical connection to the FTP sensor
Cracked or broken vapor line to the vacuum canister
Cracked or broken positive vapor line to the tank
Plugged line Leaky gasket at the fuel pump module
Gas cap left loose resulting in a loss of vacuum
Pinched vapor line


Read more at: https://www.obd-codes.com/p0452



Possible causes for the engine code p0641 include:

Open circuits and/or connectors
Defective or blown fuses and/or fusible links
Faulty system power relay
Bad sensor


Read more at: https://www.obd-codes.com/p0641

Possible causes for the P0651 engine code include:

Open circuits and/or connectors
Defective or blown fuses and/or fusible links
Faulty system power relay
Bad sensor


Read more at: https://www.obd-codes.com/p0651


Possible causes for the engine code p06a3 include:

Open circuits and/or connectors
Defective or blown fuses and/or fusible links
Faulty system power relay
Bad sensor


Read more at: https://www.obd-codes.com/p06a3

Causes for the P2199 code may include:

IAT sensor disconnected Defective IAT sensor

Restricted air filter
Open or shorted circuits or connectors
Defective PCM or PCM programming error


Read more at: https://www.obd-codes.com/P2199

Causes for this P2230 code may include:

Defective or damaged BAP (Barometric Air pressure) sensor
Defective or damaged electrical connector
Wiring issue (e.g. open, short, corrosion)
Electrical short (internal or mechanical)
Loose electrical connection Heat damage
Mechanical malfunction causing altered BAP readings
ECM (Engine Control Module) issue


Read more at: https://www.obd-codes.com/P2230
 

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Discussion Starter · #9 ·
So I went back and looked at the codes on my scan tool and it says that the code is permanent so I think that the ECU isn’t the problem here. As of now I think the problem could be somewhere in the throttle body, the IAT sensors or air filter, or possibly just bad connection/faulty wiring somewhere in the circuit
 

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Discussion Starter · #10 ·
Thank you both for your insight and information. I’m gonna continue running tests and researching information, then within the next day or two take to a shop where I can have work more in depth into the problem.
 
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