My car is in reduced power mode, the [engine](/topics-eng...


My car is in reduced power mode, the [engine](/topics-engine-chevy/) light is on, and it sputters when running Mechanic's Assistant: Has your vehicle stalled? Has anyone run a diagnostic test to pull the trouble code? Yes...

My car is in reduced power mode, the [engine](/topics-engine-chevy/) light is on, and it sputters when running Mechanic's Assistant: Has your vehicle stalled? Has anyone run a diagnostic test to pull the trouble code? Yes Mechanic's Assistant: What is the make/model/year of your car? Chevy cobalt 2008 Mechanic's Assistant: Are you fixing your Cobalt yourself? What have you tried so far? Yes. We tried cleaning the throttle body

Automotive Expert
Hi, my name is\*\*\*\*\*’ve been a technician on Just Answer since 2007 and I'll be helping you today. I'm sorry to hear you are having difficulties with your vehicle. I know how inconvenient car trouble is, but together, we will get your vehicle back up and running quickly. May I ask whom I am chatting with today?

Kelsey
Automotive Expert
Hi Kelsey it's nice to meet you. Do you happen to know what code is being stored?

P2199, P2135P2119\* not P2199
Automotive Expert
Thanks, \*\*\*\*\* \*\*\*\*\* moment ok?

Okay
Automotive Expert
Ok, if cleaning the throttle doesn't help, you likely are going to need to replace it with a new one. If you have a volt meter you can also test to make sure you are getting the proper voltage to the TAC on the throttle. Usually though if cleaning doesn't solve it, replacement is required. There is an off chance there could be an issue with the computer but that's not very common.

I have researched and the problem I have seen to be the most accurate is a bad throttle position sensor
Automotive Expert
The TPS is a possible cause for the P2119 code, not the P2135, it is worth trying the TPS, but most of the time the code is the result of a bad throttle body that's stuck closed because the motor isn't working properly.

Okay. They were both reading. Then I cleaned the throttle body and now the light is back on again. So maybe I should read what this light is to determine the problem
Automotive Expert
It won't hurt, I am thinking you might have a misfire issue going on. It might not be in failsafe just having a loss of power due to a misfire. If cleaning it did help it for a bit.

What?
Automotive Expert
I am saying if cleaning the throttle helped with the original codes, you should check the codes again to see if they are the same ones or not.

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