Cold weather problems?

Well I got my second CEL in cold weather, problem being drastic loss of power when it's pretty cold outside (-10-20C). I decided to go to the dealership and here is what they found.

P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance
P2106 - Throttle Actuator Control System - Forced Limited Power
P2110 - Throttle Actuator Control System - Forced Limited RPM

Doesn't say much. But they had a ECM update TSB#06-06-04-050. Don't know what that means....

Anywho, just to let you guys know there is an update out there, at least for the 06.

I was really happy with the service too. They ajusted the linkage for the transmission, now is really easy to shift. Didn't even have to tell them. I hope I won't see that CEL again.

Well, I posted that I had my ECM fry in cold weather (had the P2106, as well as P2105 which prevented the car from even starting).
After they replaced the ECM, it's been fine. We've had -40 oC with wind chill and no problems at all.

Are using the block heater at all? we only been getting around -20 here. No problems starting though. Just the rough idling and loss of power.

BTW, wind chill doesn't affect the engine. If the thermometer reads -20, it doesn't matter how hard the wind is blowing, the engine is at -20. Just saying because a lot of people are referring to temperature with wind chill, when in fact it only affects living things.

Yeah, I know the wind chill thing. -22 to -25 is the lowest it's been... done both the plug in and the not plugging in thing. Other than the time it takes for the engine to warm up, I've had no problems with starting since the new ECM. No rough idle, no nothing.
Since you have an 06 with the electronically controlled throttle, by the codes it might be that that has given out.
Hope it gets fixed...

Oh it's fixed, I was just wondering if you were still having problems with yours. They were pretty busy yesterday at the garage and didn't tell me if they still got problems or not. Might be too early to tell we've only had really cold days here for about 2 weeks now.

My throttle bodt froze, light went on, light went out, brought it into GM for service, they fried the ECM, installed a new ECM and all is fine now.

My windows would fog up bad, so I installed a winter front infront of the rad. and itt hasn't fogged up since.
http://www.aveoclub.net/phpBB2/userp...DSCN1121_1.jpg

yeah mine would fog up when the car would be cold and have 4 persons inside driving for a while (about a half hour). But then the car would warm up and be fine.

Be sure to use the windsheild/feet setting for better results, in case you didn't know the feet settings actually has ducts going to the rear, under the driver and front passenger seats. I think that is a very clever idea, my feet were always cold when I was younger and riding in the back of a car.

I work for GM, and at our dealership we had 4 aveos come in this week. 1 for wheel bearings, and 3 for ECU issues because of the cold weather. GM released a known issue in our computers for the Aveo and cold weather ECU problems. It is required to flash the ECU with the updated program which wil fix the problem. The problems have to do with recognizing sensors liek the TB while its below frezing causing misfired and throttle issues. 2 of the 3 we flashed, fried the ECU, and this also is a known issue. Of course we replaced the backordered ECU's for free. Evidentally this is a big issue seeing as GM had the ECUS in backorder. I have an 07, and have not run into any issues yet.

WTF????

Cold weather causes problems, my car hasn't started a couple times, but if I understood correctly GM checks the ECU and that fries the computer.

You think they would do a recall on the ECUs.

It's because they have to update their software to be able to read the Aveo ECM, if they don't they will corrupt the programming and will need to get a new ECM from the factory. Most likely, the factory will reset them and sell them back to dealerships.

the update run via a passthrough from a computer, right off of Gm Dealerworld website, so it has nothing to do with the system not being updated.

I was just quoting another thread, thanks for the info. I know my dealership had connection problems...The actual update took .7hours. Perhaps that's what happens is a lost/reset connection while the update is ongoing.

I could be, i feel bad because it makes the customer out a car for a few days, but then again the are under warranty, and if its backordered they usually get a free car to drive.

Quote:

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Originally Posted by ontarian_frog

Well I got my second CEL in cold weather, problem being drastic loss of power when it's pretty cold outside (-10-20C). I decided to go to the dealership and here is what they found.

P1516 - Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance
P2106 - Throttle Actuator Control System - Forced Limited Power
P2110 - Throttle Actuator Control System - Forced Limited RPM

Doesn't say much. But they had a ECM update TSB#06-06-04-050. Don't know what that means....

Anywho, just to let you guys know there is an update out there, at least for the 06.

I was really happy with the service too. They ajusted the linkage for the transmission, now is really easy to shift. Didn't even have to tell them. I hope I won't see that CEL again.

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Quote:

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kirko
PostPosted: Sat Feb 10, 2007 2:22 pm Post subject:
I work for GM, and at our dealership we had 4 aveos come in this week. 1 for wheel bearings, and 3 for ECU issues because of the cold weather. GM released a known issue in our computers for the Aveo and cold weather ECU problems. It is required to flash the ECU with the updated program which wil fix the problem. The problems have to do with recognizing sensors liek the TB while its below frezing causing misfired and throttle issues. 2 of the 3 we flashed, fried the ECU, and this also is a known issue. Of course we replaced the backordered ECU's for free. Evidentally this is a big issue seeing as GM had the ECUS in backorder. I have an 07, and have not run into any issues yet.

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I went to an agency today, not the one I bought the car from, but a Pontiac dealer. I told them that I wanted them to check for the updates that you mentioned. I've had problems in cold weather starts. The guy checked in his computer and it said that there were no known issues/updates, etc... for the 06 Wave/Aveo. I haven't gotten any CEL.

I don't understand. I'm thinking that I should take what your you posted with me.

Knock on wood, I've been driving my 06 svm in cold weather for about 6 weeks with no problems to speak of.

Its been as cold as 10F here (upstate NY) in the AM when I leave for work.

Slush and snow built up all over the underside and wheelwells, but all seems to run fine.

just make sure you plug it in and you'll probably have no problems. Starting problems on mine are usually -25 to -40C, at least that's when I've had it not start on me.

Just so everyone knows, all '06 Daewoo Delphi ECU's are probably going to be recalled for the cold weather problems. It's even worse with the Suzukis.

Quote:

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Latest TSB from Suzuki concerning Forenza's/Reno's:

06 Model year only

CONDITION: Engine will not start MIL “ON” and DTC P0606 (Control Module Performance)
stored. (This TSB does not apply to any vehicle with extended crank time-no
start only)
CAUSE: Outside temperature below -10º C (14º F) may cause an internal ECM circuit to
malfunction. This failure will prevent start up.
CORRECTION: Replace the Engine Control Module (ECM) with a new ECM as described below.

Please note the temp this condition may occur at.

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TSB = Technical service bulletin
MIL= Malfunction Indicator Light, Check Engine Light, probably several other names
DTC = Diagnostic trouble code

Yup, that's exactly what happened to my 06 Suzuki Swift+. P0606 (also lit up P2105 and P2106)... It would have to be left around -15 oC for 3-4 hours to not start.
New ECM later (under warranty OF COURSE!), no problems, even to -30 oC.

In cold weather, never happened it wouldn't start for me, just loss of power even at -30C. Never happened since my ECU update.

Quote:

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Originally Posted by Audacity Racing

Just so everyone knows, all '06 Daewoo Delphi ECU's are probably going to be recalled for the cold weather problems. It's even worse with the Suzukis.

Quote:

---

Latest TSB from Suzuki concerning Forenza's/Reno's:

06 Model year only

CONDITION: Engine will not start MIL “ON” and DTC P0606 (Control Module Performance)
stored. (This TSB does not apply to any vehicle with extended crank time-no
start only)
CAUSE: Outside temperature below -10º C (14º F) may cause an internal ECM circuit to
malfunction. This failure will prevent start up.
CORRECTION: Replace the Engine Control Module (ECM) with a new ECM as described below.

Please note the temp this condition may occur at.

---

TSB = Technical service bulletin
MIL= Malfunction Indicator Light, Check Engine Light, probably several other names
DTC = Diagnostic trouble code

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So, all we do is wait till they recall them. I haven't gotten a CEL yet, but my car hasn't started twice at -30C.

If you take it in, they should replace it without any hassle

Well, cars into the dealer. I gave a big long list of problems and the shop foreman took over working on my car. yay me.

They're going to put a new ecm sometime in the future. I had an engine coolant leak which is being fixed. I told him about all the codes you all got and he couldn't find any, weird?

I also let slip that I had reset my ecm using the battery, he wasn't impressed and gave me a little bit of hell about not using the computer hooked up to your engine, etc...

So, I'll wait and see.

Unless you have a code reader that can clear the check engine light, I wouldn't clear them myself. When the light comes on, it's usually for a reason. Even if it's just for a sensor, better to see what the code is than to just guess.

No, I tried to reset the ecm by taking the negative terminal off of the battery. It was the solution recommended by MMardouh(something like that) on daewootech.com. I only did this because I installed new components to my car: muffler, k&n filter.

I haven't had the car 2 days now. They said that I had a coolant leak and that they had to get a new speciality part made new for my car. They're going to put a new faulty part for the time being.

coolant leak into the engine?

I don't know where the coolant went, all I know is that I filled it and then it was gone.
Apparently, in my case the housing on the thermostat was bad, that's the new part that they're building(or whatever) to replace. It might have been my car was using all the coolant rather than a leak.

yea coolant in the piston chambers equals not good so thats why i asked but if its else where then there is no problem

on a curious thought, has anyone toasted a headgasket yet? How do they hold up?

think roro blew a headgasket on his old aveo... he was running a 75 or so shot of nitrous in a pure drag car, though.

This is the third winter now in my 06 Aveo and I borrowed a code reader from a friend who works at a pontiac dealer.
finely today I reproduced the CEL for the 2nd time this winter and 4th time since buying the car in may 06.
I got the exact same 3 codes ontarian_frog got.
p1516
p2106
p2110
My friend talked to a tech about the codes and printed off a page from GM's knowledge base search results witch showed the TSB
#06-06-04-050A dated Feb,22 2008
It has been as low as -31c (without windchill) within the past 2 days here in Winnipeg MB. Canada.
The symptoms I experience are poor execration/RPM, sputtering or miss-firing and the engine shutting off. this has happened with and without the block heater being plugged in. another thing I THINK is related is the gas tank being less than half full because that has been the case every time while experiencing theses symptoms with the CEL. I tend to keep my tank toped up.

I have an appointment tommorw afternoon and am hoping to get an ECM update before my warrantee expires. I will post back with details.

you know i read this thread and i forgot all about last winter my idiot light came on but the car was functioning fine. took it in and they fixed it and were vague about what caused it, didnt really tell me **** actually. I bet this is what happened, interesting...
08 aveo5 hatch

I waited 2 hours at the dealer for nothing, they did not even look at my car! I'm dropping it off monday afternoon and getting a rental while they look at it on tuesday. stay tuned.