Hi, I have a 2008 Chevy Aveo that lost power about 3 miles after getting to highway speed, has fuel pressure but no spark, used a DTC scanner to...

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Customer

Hi, I have a 2008 Chevy Aveo that lost power about 3 miles after getting to highway speed, has fuel pressure but no spark, used a DTC scanner to pull the following info, replaced the upstream O2 sensor and reset the codes but still no spark and so wondering what to try next?

P0031 H02S Heater Control Circuit Low (Bank 1, Sensor 1)

Fuel Sys 1 OL Fuel Sys 2 NA Calc Load(%) 36.9 ECT(oF) 108 STFT B1(%) 0.0 LTFT B1(%) -0.8 MAP (inHg) 11.5 Eng RPM 1232 Veh Speed(mph) 6 Spark Adv(o) 0.0 IAT(oF) 90 TPS(%) 13.3 Run Time(sec) 26 Command EGR(%) 0.0 EGR Error(%) 0.0 Command EVAP(%) 10.6 Fuel Level (%) 42.4 BARO (InHg) 28.6 ECU Volts(V) 14.205 LOAD Value(%) 27.8 EQ Ratio 0.994 Rel TPS(%) 3.5 TPS B(%) 12.9 ACC Pedal D(%) 9.8 ACC Pedal E(%) 4.7 Command TAC(%) 5.1

P00340 Camshaft Position Sensor A Circuit (Bank 1 or single sensor)

P2106 Throttle Actuator Control System – Forced Limited Power

P2110 Throttle Actuator Control System – Forced Limited RPM

P2101 Throttle Actuator Control Motor Circuit Range/Performance

P0137 O2 Circuit Low Voltage (Bank 1, Sensor 2)

P0458 Evaporative Emission System Purge Control Valve Circuit Low

P0351 Ignition Coil A Primary/Secondary Circuit

P0352 Ignition Coil B Primary/Secondary Circuit

P2106 Throttle Actuator Control System – Forced Limited Power

P2110 Throttle Actuator Control System – Forced Limited RPM

P0458 Evaporative Emission System Purge Control Valve Circuit Low

P0031 H02S Heater Control Circuit Low (Bank 1, Sensor 1)

P0351 Ignition Coil A Primary/Secondary Circuit

P0352 Ignition Coil B Primary/Secondary Circuit

Last updated
Ramy De Jesus
Auto Mechanic

Hello and welcome to ExpertHelp.com! My name is Ramy De Jesus and I'm going to do everything in my power to answer your question to your full satisfaction!

Before we get started, I want to remind you ExpertHelp.com is an independent professional support company. We are not associated with Chevy nor are we paid to provide support on their behalf. However, we have helped hundreds of customers with similar questions and believe we can help you too. OK, let’s get started! :)

I’m available to chat now. Please let me know that you are ready by posting a response. I’ll leave my chat session open for the next 15 minutes or so and wait for your reply. If I don’t catch you this time, please respond with a few times (including your timezone) that work best for you and we can connect then.

Last updated
Ramy De Jesus
Auto Mechanic

Hi Alex! Thank you for choosing ExpertHelp.com. Just to verify the list of codes you provided on this chat page, are you getting all those codes on your scanner? When did this problem started? When your ready, please type your responses on this page and then click on the Blue Send Response button to post your response. I will be standing by for your response.

Posted
Customer

This was the first and only time the problem happened (engine stalled and won't restart because of no spark) I pulled the codes right after that. Primary code with freeze frame data indicates upstream O2 sensor so replaced that already, cleared the codes from the car with the scanner, and still won't spark. It is not a blown fuse, already checked fuses also. So just hoping you could give indication from those codes of what else the problem is, how to get the spark plugs working. 

Posted
Ramy De Jesus
Auto Mechanic

I see. The car won't crank also? Or it will start but it won't move?

Posted
Customer

Hi Ramy, yes the car will crank but not start. No spark when the spark plug removed and held to ground. Actually just ordered a new ignition module so will try installing that next, if you just have any other ideas if the new ignition module does not work I would be happy to know that, thanks for the attention.

Posted
Ramy De Jesus
Auto Mechanic

I see. Try to check the fuse under the hood that is labeled as DIS and it is a 10 amp fuse. But normally what I will suggest you also is to have the ignition module to be check. Please advise me what will be the result. I will leave this page open and will wait for your updates.

Posted
Ramy De Jesus
Auto Mechanic

Hi Alex,

I just want to follow up if your issue is already resolve or you still need further assistance. I will leave this page open and will wait for your response.

 

Regards,

Ramy De Jesus

Posted
Customer

Hello Ramy & apology for the delay, you were correct, the DIS fuse was blown it seems the short was at the wires just entering the upstream O2 sensor the car is running now. Thanks for the help + case closed.

Posted
Ramy De Jesus
Auto Mechanic

Please do not forget to click on the Green Accept Answer button for me to receive a credit for assisting you. Thank you for allowing us to help you.

Posted
Ramy De Jesus
Auto Mechanic

Dear Alex, It was a pleasure helping you with your Chevy issue today. Here is a summary of the resolution.

Issue identified : Lost power
Solution Implemented : Live chat. Provide the steps and parts to check on this chat page. Now car is running great. Issue resolved. Case closed. Chat ended.
If issue resurfaces : Advised to contact us at s**t@experthelp.com or call us on our support number ***-***-**** )

Posted

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