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post #1 of 14 (permalink) Old 09-11-2013, 07:11 PM Thread Starter
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Codes

Is it my ECM or Throttle Body. I cleaned my TB, replaced fuel filter, cleaned my MAF sensor, check my spark plugs and the gap, checked my fuses. Still Nothing. Last night I replaced my TB. Still Nothing. Having replaced my TB, should I have the error codes cleared first then start my car? Is there anybody that can help me out?
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post #2 of 14 (permalink) Old 09-12-2013, 03:17 AM
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What's the problem?

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post #3 of 14 (permalink) Old 09-12-2013, 11:36 AM
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JGC06COBALT,

Yes, what codes have you found?

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post #4 of 14 (permalink) Old 09-12-2013, 12:23 PM Thread Starter
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My Cobalt won't stay on. She cranks, starts then immediately shuts off. The Driver Information Center (DIC) reads something like "Engine Power Loss".

Here are the error codes I got from AutoZone auto parts.
P0506
P0601
P0121
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post #5 of 14 (permalink) Old 09-12-2013, 01:33 PM
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P0121 sounds like a MAF issue, do you have a K&N air filter installed on the car? The other codes I cannot look up since im not enrolled to ALLDATA Pro anymore. Sorry.

2009 Cobalt LS XFE U74
Mods: K&N Typhoon Intake, Option Cat-Back Exhaust, Cosmo Short shifter, Maxxim Ahead 17X7's, MPx shorty antenna, FE5 Strut/shocks, Tein S Techs, Moog endlinks, Moog spring seaters, ZZP shorty header, LSJ downpipe, LNF front grille
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post #6 of 14 (permalink) Old 09-12-2013, 04:01 PM
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Quote:
Originally Posted by 5t3alth View Post
P0121 sounds like a MAF issue, do you have a K&N air filter installed on the car? The other codes I cannot look up since im not enrolled to ALLDATA Pro anymore. Sorry.
Uh! no. P0121 Throttle Position Sensor/Switch A Circuit Range/Performance Problem

Codes are all listed below on this site.

P0506 Idle Control System RPM Lower Than Expected
P0601 Internal Control Module Memory Check Sum Error

Did you check all the fuses. Pull them out to check them.Might be ECM fuse.

P0601 means your ECM isn't working properly.

https://www.yourcobalt.com/forums/pro...-cel-list.html

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Last edited by Coby7; 09-12-2013 at 04:04 PM.
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post #7 of 14 (permalink) Old 09-12-2013, 06:54 PM Thread Starter
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Quote:
Originally Posted by 5t3alth View Post
P0121 sounds like a MAF issue, do you have a K&N air filter installed on the car? The other codes I cannot look up since im not enrolled to ALLDATA Pro anymore. Sorry.
Nope just an all stock 2006 2.2L LS.
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post #8 of 14 (permalink) Old 09-13-2013, 09:03 AM
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JGC06COBALT,

Let us know if you want your GM dealership to look into this for you.

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post #9 of 14 (permalink) Old 09-13-2013, 02:32 PM
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Quote:
Originally Posted by Coby7 View Post
Uh! no. P0121 Throttle Position Sensor/Switch A Circuit Range/Performance Problem

Codes are all listed below on this site.

P0506 Idle Control System RPM Lower Than Expected
P0601 Internal Control Module Memory Check Sum Error

Did you check all the fuses. Pull them out to check them.Might be ECM fuse.

P0601 means your ECM isn't working properly.

https://www.yourcobalt.com/forums/pro...-cel-list.html
sorry man, ive been away from Powertrain codes for a while....im used to diagnosing Nissans with IPDM E/R's and VVEL issues, sorry again :(

2009 Cobalt LS XFE U74
Mods: K&N Typhoon Intake, Option Cat-Back Exhaust, Cosmo Short shifter, Maxxim Ahead 17X7's, MPx shorty antenna, FE5 Strut/shocks, Tein S Techs, Moog endlinks, Moog spring seaters, ZZP shorty header, LSJ downpipe, LNF front grille
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post #10 of 14 (permalink) Old 09-13-2013, 07:29 PM Thread Starter
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Quote:
Originally Posted by 5t3alth View Post
sorry man, ive been away from Powertrain codes for a while....im used to diagnosing Nissans with IPDM E/R's and VVEL issues, sorry again :(
Quote:
Originally Posted by Coby7 View Post
Uh! no. P0121 Throttle Position Sensor/Switch A Circuit Range/Performance Problem

Codes are all listed below on this site.

P0506 Idle Control System RPM Lower Than Expected
P0601 Internal Control Module Memory Check Sum Error

Did you check all the fuses. Pull them out to check them.Might be ECM fuse.

P0601 means your ECM isn't working properly.

https://www.yourcobalt.com/forums/pro...-cel-list.html
Fuses are good.
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