vortec supercharger
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On The Tree
Joined: Apr 2004
Posts: 148
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vortec supercharger I currently installed a vortec s-9trim intercooled supercharger running 9 pounds of boost on my 2001 camaro ss, I also have ppc long tube header, high flow cats and flowmaster system, the superchager came with it's own computer recalibration. The car runs great with no detination that I can tell and is very fast but engine code po420 and po430 come up when I run the car at full throttle. Can anybody give me the site to look up ls1 camaro engine codes,I know there is one because someone gave it to me before but I lost it. If no one has that site can anybody tell me what these codes are.
10 Second Club
Joined: Apr 2002
Posts: 1,755
Likes: 2
From: Cincinnati, Ohio
Those codes get tripped if the rear O2 starts to switch rich/lean at a similar cycle to the front O2s. If the cats are working well the rear O2s will be very stable in the .5 volt range unlike the front constant cycle of .2-.8 volts. You might have killed the cats due to incorrect A/F or a mis-fire. You could just buy O2 simulators for the rear O2s and that would solve the code problem or if your worried about emissions or just want the system to work right with the cats you could run through the flow charts. If you need Alldata or Mitchell flow charts let me know. Tom.
Thread Starter
On The Tree
Joined: Apr 2004
Posts: 148
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Hey Tom that would be great if you would send me those charts, also were to purchase o2 simulators. I had a bad plug that was causing a misfire in the 8th cylinder which I fixed but unfortunatley I think I damaged the cat on that side prior to installing the vortec and know with the high flow It's setting off these codes.
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