[N8XWB]

I'm 60 miles from home. 2018 Volt ~46,600 miles. While driving on highway 75mh. CEL lights. Engine temp climbed to 238. Reduced propulsion warning. Drove 2 miles to exit, switched to NORMAL and proceeded 5 miles. Engine Temp back to 157 after 20 minute stop. Onstar codes. Initially just 3. I started car, CEL & reduced propulsion still on. After a mile engine not available warning. ONSTAR codes:
P0030, POO31, P0403, P0405, P0443, P0458, P0597, P0598, P06DA, P06DB, P103C.

Any ideas???

BECM has been replaced, BTW!

 

[Saint]

Probably EGR valve failed. I have the same issue right now. Search the forum. The part is faulty and breaks at some point. You can check if F3 fuse under the hood is blown to be sure.

 

[obermd]

P0030 is part of the emissions system. It's the upstream oxygen sensor. However, your initial description would make me think there's a faulty valve in the ICE coolant loop and the car isn't cooling itself properly

 

[scottf200]

Similar thread?

No Walk Home fuse blew. EGR or something else?

2016 Volt LT, 75 k miles, about 20% ICE. I was on a weekend trip, driving in a hilly region at close to 70 mph in Hold mode, when I got the dreaded "propulsion power is reduced" and check engine light. The car drove perfectly fine, no reduced power as far as I could tell. I continued to my...

www.gm-volt.com

After lots of googling, I disconnected the EGR valve and the car seems to drive normally.

At home I read the DTC codes:
P0030 HO2S Heater Control Circuit Bank 1 Sensor 1
P0031 HO2S Heater Control Circuit Low Bank 1 Sensor 1
P00B7
P0135 O2 Sensor Heater Circuit Bank 1 Sensor 1
P0403 EGR Control Circuit
P0405 EGR Sensor A Circuit Low
P0443 Evaporative Emission System Purge Control Valve Circuit
P0458 Evaporative Emission System Purge Control Valve Circuit Low
P0489 EGR Control Circuit A Low
P0597 Thermostat Heater Control Circuit/Open
P0598 Thermostat Heater Control Circuit Low
P06DA
P06DB
P0AC4 Hybrid Powertrain Control Module Requested MIL illumination

After lots of googling, I disconnected the EGR valve and the car seems to drive normally.

Related post to EGR and non walk home fuse -- #3 (non walk home) fuse

For some reason I recall people being able to unplug the EGR and live with a engine light code temporarily. My memory is weak tho.

2016 Propulsion Power Reduced! Covered under warranty?

I have a 2016 volt bought from NYC and I am the first owner currently residing in TX. My volt currently has mileage of 30,020 but this propulsion power will be reduce error has been shown since last 100 miles or so, my commune is usually under 5 miles a day so I rarely use gas however...

www.gm-volt.com

ALSO:

The 15A "Non Walk Home" fuse protects the 12V feed circuits to various engine management and emission devices.
Q44 Engine Oil Pressure Control Solenoid Valve, E41 Engine Coolant Thermostat Heater, Q12 Evaporative Emission Purge Solenoid Valve, Q14 Exhaust Gas Recirculation Valve, B52A Heated Oxygen Sensor 1 are all devices protected by this fuse.

As far as the name it's a bit of a joke but true.
The failure of this fuse will not result in a "walk home" condition
(but surprisingly there's no "Walk Home" fuse!) lol

Welcome to gm-volt.com
WopOnTour

 

[N8XWB]

Probably EGR valve failed. I have the same issue right now. Search the forum. The part is faulty and breaks at some point. You can check if F3 fuse under the hood is blown to be sure.

I AM FUMING! You are surely right. The thing is, my EGR valve was replaced at 23771 miles! And I just checked my service records and it threw the same codes.
Best I can tell, the EGR valve is covered by the extended emissions component warranty, right?

BUT I have less than 17,000 miles on the ICE! So what is wrong with Chevy's EGR valve? Needs replacement every 8500 miles??

GIVE ME A BREAK!

 

[obermd]

When you run your ICE, does it have a chance to fully reach temperature? If not it's building up carbon.

 

[N8XWB]

When you run your ICE, does it have a chance to fully reach temperature? If not it's building up carbon.

You bet it does! The only time I run ICE is when I take a trip and must do high-speed driving. The shortest rout I use it for is 45 minutes driving at 70+ mph! PLENTY of time to reach its operating temperature! I say again, 8500 miles or less and then need an EGR valve replacement? GIVE ME A BREAK!!! This part needs to be redesigned and then recalled.

 

[Danno]

There's been a lot of debate about the EGR valve warranty coverage. See this thread. 2016 Propulsion Power Reduced! Covered under warranty?

If you're in CA or a state that adopts CARB, like NY, you might be covered under emissions warranty.

Agreed that the EGR valve is a crappy design. The EGR on my 2017 failed with less than 15,000 ICE miles. I managed to keep the car running temporarily by disconnecting the EGR valve and replacing the F3 fuse until I could source a replacement (from ebay of all places).

 

[dvb]

my EGR valve was replaced at 23771 miles! And I just checked my service records and it threw the same codes.

Look for the part number, that was installed. The latest PN is 12691147, which replaces 12667038, 12674163.

 

[Danno]

BTW, the EGR valve is the reason I keep my battery fully charged and use HOLD mode when I drive on the highway until I'm close enough to my final destination to make it on battery. When the EGR valve fails, it blows the F3 fuse. The electronic thermostat for the engine is also on the F3 fuse, so the engine will start overheating. When my EGR valve failed I was on the highway on the way to an important meeting and managed to make it on time by running the engine until the coolant temp got to about 210, then running on battery for a few minutes to allow the engine to cool, then switching back to hold mode until the temp got to 210 again. The alternative is to pull off the highway, stop the engine, disconnect the EGR valve, and replace the F3 fuse.

The EGR valve is the reason I keep a bunch of spare fuses and a fuse puller in my glove box. BTW, this thread has good pictures that show how to remove the connector to the EGR. 2018 Unplug EGR connector on Gen 2 Volt?

 

[obermd]

BTW, the EGR valve is the reason I keep my battery fully charged and use HOLD mode when I drive on the highway until I'm close enough to my final destination to make it on battery. When the EGR valve fails, it blows the F3 fuse. The electronic thermostat for the engine is also on the F3 fuse, so the engine will start overheating.

This answers my question about why OP's car overheated.

 

[Saint]

That's not good. I hope the current part is not the redesign. GM is for sure very irresponsible. There are better brands who take responsibility and fix the problem when they obviously sold crap.

Same thing with BECM, I keep thinking when will I lose power and steering cruising on highway, getting stranded who knows where.. My first and last GM car.

I AM FUMING! You are surely right. The thing is, my EGR valve was replaced at 23771 miles! And I just checked my service records and it threw the same codes.
Best I can tell, the EGR valve is covered by the extended emissions component warranty, right?

BUT I have less than 17,000 miles on the ICE! So what is wrong with Chevy's EGR valve? Needs replacement every 8500 miles??

GIVE ME A BREAK!

 

[dvb]

My first and last GM car.

Keep in mind, though, that Volt is much an experimental car...

 

[Steverino]

Volt is much an experimental car...

News to me.

 

[dvb]

News to me.

No? I thought GM wanted to continue the research, started by EV1. Why did then they continue to sell Volt at a loss?

 

[stevon]

N8XWB,

I run my engine at least 3 times a week and have had no EGR issues so far, knock on wood. The 100+ year old designed/improved ICE has to run to burn out water vapor collected in the oil, all of the oil seals absolutely must have a splash of oil to maintain their sealing properties and the catalytic converter and emission systems must also come up to full operating temperature to keep working properly. This is not unique to the Chevy Volt gas engine, all combustion engines need to run to stay healthy. Being hauled around for months as a cold dead load would not bid well for any ICE. I can't blame GM for not creating a unique gas engine made to store for months/years without running and then suddenly be called to perform perfectly after a year of being stagnant. I haven't read the manual 100% but I think it should inform a volt owner that the gas engine must be run a minimum amount of time a month to keep it working reliably. Even standby ICE generators must be run monthly as a maintenance step required to honor the manufacture's warranty. The stale gas issue has already been addressed by the Volt engineers.

Stephen

I'm 60 miles from home. 2018 Volt ~46,600 miles. While driving on highway 75mh. CEL lights. Engine temp climbed to 238. Reduced propulsion warning. Drove 2 miles to exit, switched to NORMAL and proceeded 5 miles. Engine Temp back to 157 after 20 minute stop. Onstar codes. Initially just 3. I started car, CEL & reduced propulsion still on. After a mile engine not available warning. ONSTAR codes:
P0030, POO31, P0403, P0405, P0443, P0458, P0597, P0598, P06DA, P06DB, P103C.

Any ideas???

BECM has been replaced, BTW!

 

[Danno]

N8XWB,

I run my engine at least 3 times a week and have had no EGR issues so far, knock on wood. The 100+ year old designed/improved ICE has to run to burn out water vapor collected in the oil, all of the oil seals absolutely must have a splash of oil to maintain their sealing properties and the catalytic converter and emission systems must also come up to full operating temperature to keep working properly. This is not unique to the Chevy Volt gas engine, all combustion engines need to run to stay healthy. Being hauled around for months as a cold dead load would not bid well for any ICE. I can't blame GM for not creating a unique gas engine made to store for months/years without running and then suddenly be called to perform perfectly after a year of being stagnant. I haven't read the manual 100% but I think it should inform a volt owner that the gas engine must be run a minimum amount of time a month to keep it working reliably. Even standby ICE generators must be run monthly as a maintenance step required to honor the manufacture's warranty. The stale gas issue has already been addressed by the Volt engineers.

Stephen

I disagree. The EGR valve design sucks. It actually takes talent (and not the good kind) to design a valve that will fail with less than 15,000 miles of ICE use. I also run my ICE fairly regularly and I don't run it unless I'm going on a trip long enough to get the engine up to operating temp but mine still failed. The next time it fails, I might just unplug it and run the car that way. (No emissions checks here in Michigan).

 

[stevon]

Danno,

The sad truth is that you have to regularly bring any ICE and its components up to operating temperature. That is the current state of the art requirement and limitation for any ICE vehicle, especially with emission systems involved, to keep it working without problems.
The fuel and oil used in automobiles is designed for running conditions and for limited storage conditions, they go "bad" just sitting on the shelf and have expiration dates. The ICE has over 100 years of design to be able to run reliably with off the shelf products. GM and most car manufacturers use companies like Delphi, Bendix and Bosch to design their parts. If you change the requirement for a different use, e.g. aircraft, trucks, bulldozers, etc. then if they fail you have a lot of liability claims. Automotive manufactures are limited to physics and what other companies have available as to fuel carbon content/quality and shelf life of products readily available in the market. Customers want gas and oil products that are convenient and readily available. Besides Delphi and Bosch are not fuel and oil experts and can't and won't design, make and distribute custom specialty oil/fuel products to use with their devices for a one off request. The Volt is an unique experimental car IMO and to save costs they used off the shelf ICE components that have a very narrow use to their design. Of course almost any part fails when it's asked to work outside it's specific limited design.

Stephen

I disagree. The EGR valve design sucks. It actually takes talent (and not the good kind) to design a valve that will fail with less than 15,000 miles of ICE use. I also run my ICE fairly regularly and I don't run it unless I'm going on a trip long enough to get the engine up to operating temp but mine still failed. The next time it fails, I might just unplug it and run the car that way. (No emissions checks here in Michigan).

 

[bboaze]

I AM FUMING! You are surely right. The thing is, my EGR valve was replaced at 23771 miles! And I just checked my service records and it threw the same codes.
Best I can tell, the EGR valve is covered by the extended emissions component warranty, right?

BUT I have less than 17,000 miles on the ICE! So what is wrong with Chevy's EGR valve? Needs replacement every 8500 miles??

GIVE ME A BREAK!

Leave the bad EGR valve on the engine and hook a new one up to the wiring, but leave it not mounted so it will operate without exhaust gas going through it. Maybe it will last longer.

 

[noyoudont]

or your pcv valve is bad and dumping oil into your exhaust to the point your egr plugs up