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2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque
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Old 02-04-2008, 09:33 AM   #1
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Help - DTC P0121, P0068

I was driving my car recently and as I was driving all of a sudden it displays " Engine Power Reduced" and the cars stalls, I start it back up, it sounds horrible, i thought that the motor was blown, I shut it off and then wait approx 10 minutes, start it back up, idles fine except the engine light is now on. The codes my aeroforce displays are code P0121 and Code P0068. I went away on business for a week and came back home, start the car up, now no engine light but the cars feels very sluggish. Does anyone know what it could be?

I have heard that it might need the MAF sensor replaced, i have also heard it could be a clogged cat, just wondering if anyone has had the same problem and what was the cure?
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Old 02-04-2008, 09:55 AM   #2
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Both of those DTCs involve the throttle body

P0068 Throttle body Airflow Performance
P0121 Throttle position Sensor 1 Performance

Any chance something came loose on your intake piping?

If you can clear them try that and see if you still get a CEL.
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Old 02-04-2008, 10:01 AM   #3
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Quote:
Originally Posted by QuikSilverSS View Post
I was driving my car recently and as I was driving all of a sudden it displays " Engine Power Reduced" and the cars stalls, I start it back up, it sounds horrible, i thought that the motor was blown, I shut it off and then wait approx 10 minutes, start it back up, idles fine except the engine light is now on. The codes my aeroforce displays are code P0121 and Code P0068. I went away on business for a week and came back home, start the car up, now no engine light but the cars feels very sluggish. Does anyone know what it could be?

I have heard that it might need the MAF sensor replaced, i have also heard it could be a clogged cat, just wondering if anyone has had the same problem and what was the cure?
clear the codes then start up the car
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Old 02-07-2008, 03:17 PM   #4
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They replaced my throttle body under warranty, havent really had a chance to get on it since i picked it up but seems to work better, hope thats it
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Old 02-07-2008, 03:25 PM   #5
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that problem is from the sensor being partly unpluged underneth the blower...trust me..i know haha
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Old 02-07-2008, 03:58 PM   #6
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that problem is from the sensor being partly unpluged underneth the blower...trust me..i know haha
So that should be fixed if they installed a new throttle body wouldn't it?
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Old 02-07-2008, 04:04 PM   #7
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yea.
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Old 02-07-2008, 04:04 PM
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