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Discussion Starter #1
Car pulls boost great till around 3500rpm then it just seems like the boost disappears and it does this studder like thing I can’t figure out the problem and I don’t want it causing engine damage. My air/fuel ratio is running crazy, anywhere from 10.0 to 17.0
 

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Do a boost leak test.
Are there any P codes that are being thrown?
If the AFR is that off I would check for leaks in the exhaust too. Starting at the manifold and working back to just beyond the O2 sensors.
 

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Lets dissect this:

HELP 2002 dodge R/T motor swap into a 2003 srt 4

title says you swapped a 02 R/T 2.0 SOHC into a 03 SRT-4. LOL
 
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