Originally posted by Bob Blaylock:
The other failed test is the CATRAT2 test, which seems to indicate a problem with the second catalytic converter. I'm very hazy on just how the EGR system works, but it seems conceivable that if the catalytic converters are in any way obstructed, it would increase the back pressure, which might increase the flow through the EGR valve. That sounds like a very reasonable explanation. What year is your car? If its 96 or older, I would definitely suspect a clogged cat. I've got the obd-2 scanner and software on order, and should have it either Saturday or Monday. Actually, I have the software license number already if I want to download it, so I guess I can read your data without the actual hardware. So I guess e-mail me your file, and I'll take a look. sting45470@yahoo.com
'96 Contour SE, black / opal grey, MTX, every option, KKM intake, resonator removed, Flowmaster Series 40 DeltaFlow, GoodYear Eagle HP's, 115k miles, new paint 7/01. Driven cross-country 4 times.
'70 Corvette Stingray Coupe, Cortez Silver, 454 bored to 462, Muncie M21, too many mods to list, lots of fun. 335 rwhp / 365 rwtq
'02 Corvette Z06, Electron Blue / Black, every option. Stock for now...
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