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Old 06-04-2006, 08:30 AM   #13
MarkD's Avatar
Join Date: Apr 2002
Location: In Your DME!
Posts: 2,404
Originally Posted by SickFinga
Nah, car still runs the same, sputtering at 4k rpms and check engine is on.

We did it at Dyno Power Services

Did you measure the a/f ratio at the tailpipe or the bung that was installed last year? If it the tailpipe, the cat has an effect plus there is a delay in the reading. Also, what type of O2 sensor was used? Was it a wideband sensor like I use or the type used by emisions testing places where the exhuast is sampled by a hose?

I finally have time to look at the tuning I read from your car, I'll have a look to see if I can lean it out.

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