Car slows down on road by itself-gas pedal sensor?

Hi I have a 2006 Aveo ,standard. I hit the highway at 100km/ hour (60 in miles) then suddenly the car will slow down to 30 -40 and there is nothing I can do I hit the gas pedal and it won't go more than 30 or 20. I stop on the side of the road ,turn off my car wait 5 mins and start it up again. It will be fine for another 10-15 mins ride and it will do it again. It happened 5 times last night. I am being told it is the gas sensor.Has anyone had this problem. I would greatly appreciate the help pls.

Sounds like a dirty or bad throttle body. I'd try to clean it first. Unfortunately on this car, the tps is part of the throttle body, so if it's bad, you need to get the whole assembly.

Thks for reply what is and where is the throttle body? TPS is a sensor?

anyone else have an idea on cleaning this ?

Do you have a check engine light? Ive had a simlar problem in the past. But CEL codes would help narrow it down.

Hi yes I have a check ebgine light and with the code reader ,they , the garage get 3 codes.

And the 3 codes are?

there are several things that could cause this, the codes are going to be the only way to narrow it down.

Garage still has those codes, i'm going to another garage Monday ,they will read codes again, if I had the codes I would have given them here ,sorry. The first garage has not been helpful, pretty useless in fact.

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Originally Posted by Leotardtearer22

Hi I have a 2006 Aveo ,standard. I hit the highway at 100km/ hour (60 in miles) then suddenly the car will slow down to 30 -40 and there is nothing I can do I hit the gas pedal and it won't go more than 30 or 20. I stop on the side of the road ,turn off my car wait 5 mins and start it up again. It will be fine for another 10-15 mins ride and it will do it again. It happened 5 times last night. I am being told it is the gas sensor.Has anyone had this problem. I would greatly appreciate the help pls.

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Your concern is certainly understood regarding your Aveo. If you would like, please send the VIN# and I can see if there are any known issues like this. A GM Certified Tech should also be well-equipped to resolve your concerns. I hope you find a quick solution for this issue.

Matt (Assisting Vanessa)

GM Customer Assistance

THks for reply I sent u a pm .

Hi The 5 codes are P2106,P2110,P2135,P2101,P1516. Hope someone can help out.Thks

Anyone pls

Sounds like you need to clean your throttle body.

P2106- Throttle Actuator Control System - Forced Limited Power
P2110- Throttle Actuator Ctrl Sys-Forced Limited RPM
P2130-
P2101-
P1516- Electronic throttle module throttle position

Those are the ones I found in the manual. Running a search online will bring up the rest but I just got back from work....feeling lazy. But Im in a similar boat. My car isnt running ATM because of similar codes. Luckily I have my motorcycle. So far in my car Ive tried replacing the Throttle body and the Gas Pedal since there is a sensor built into it. Unfortunately that did not fix the problem but it may in your case.

Thks for reply , Can That throttle body be changed by myself? I am getting one that is used.

You don't need a used one, the issue has been brought up before, when its dirty, the throttle plate sticks and then no longer matches the position of the gas pedal, throwing all those codes. If it is prolonged, it sets more codes, and goes into safe mode. The founded solution was cleaning the throttle, make sure the throttle plate is appropriate at idle and then do the idle relearn procedure.

The person who discovered this had the same problem a few times, and eventually installed a catch can.

OK thks for reply, I know I'm amateur but how do I go about cleaning this throttle body and idle relearn?

Anyone on my last reply Thks

the procedure for the idle relearn is on here somewhere..

the throttle body, take it off, you get a good throttle fluid in a spray a wire/nylon brush or old tooth brush, and scrub all the filth off and put it back in.

Ok Thks Pet rabbit , i'll do those things and get back later this week. Thks