SERVICE ENGINE LIGHT

2005 Chevrolet Cobalt

Tiny

matthew0701

January, 3, 2012 AT 1:38 AM

I have a 2005 chevy cobalt that has the service engine light on and across the message center it is reading reduced engine repair and the car is shaking bad and does not hardly wanna stay running. Do you have any suggestions for this problem. We have tried changing throttle bodies out checked the fuel rails and put in a new fuel filter. We also checked the spark plugs and they were fine.

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4 Answers

Tiny

saturntech9

January, 3, 2012 AT 1:40 AM

What is the exact numbers of the trouble codes you have?

Tiny

matthew0701

January, 3, 2012 AT 2:12 AM

The codes are P0420 and P071 it read as air performance and catalic converter. If you could help any at all or have any suggestions please do

Tiny

matthew0701

January, 3, 2012 AT 2:14 AM

As far as the exact codes I am not for sure but I do know that the throttle body is not opening at all

Tiny

saturntech9

January, 3, 2012 AT 8:58 PM

The P0420 is cat low effenicy I cant find the code P071 it has to be a letter followed by a four digit number.I really need the exact code numbers to help you here. Can you get me the exact code numbers?

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