quick google on the P1140 points to the Cam sensor.
http://www.jensbits.com/2008/08/30/p...145-and-p1140/
and the P1320 leads to needing to replace the Coils, plugs, or clean the MAF.
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2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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