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Hi,

Here's the background. 2002 New Beetle GLS, 166,700 miles. Replaced engine last fall, rebuilt transmission a couple of months ago & new catalytic converter about 3 years ago at about 110K miles.

Today, my EPC light came on, then the Check Engine. Pep Boys read the codes as P0103 & P0221.

P0103 = Mass or Volume Air Flow Circ High Input

P0221 = Throttle Pos. Sensor -B- Circuit Range/Performance

Car is intermittently loosing power, won't rev over 4K rpms to pass anyone or even get up to speed. Sounding rough & junky, LOL if that is even a description.

So... what do these mean? And how bad off am I?

thanks! Cat
 

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3,319 Posts
try unplugging the maf sensor.

it runs better, replace the maf, it's bad.

if it doesn't, replace the throttle body.

throttle bodies are easy to replace, but EXPENSIVE to buy.
 
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