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Techno Duck Techno Duck is offline
That Guy
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Join Date: Mar 2003
Location: San Diego, CA
Posts: 4,841
I used the CA legal cat from DEC... it works fine.

Here were the results with about 7 miles on the cat, stock '89 chip, no vacuum leaks, rebuilt injectors, new cap / rotor / plugs, new O2 sensor and perfectly dialed in idle and CO adjustment using a wideband O2 sensor. Literally rolled right off the highway and pulled in for testing.

About 10k miles later, this time with a different tune...and the car sat for about 2 hours before it was tested.

1988 Granite Green 911 3.4L
2005 Arctic Silver 996 GT3
Past worth mentioning - 1987 924S, 1987 944, 1988 944T with 5.7L LS1

Last edited by Techno Duck; 02-19-2019 at 03:31 PM..
Old 02-19-2019, 03:28 PM
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