Join Date: May 2012
Location: Beautiful British Columbia
Ferrari Life Posts: 30
Things I've learned in my first year of 355 ownership...
For what it's worth, in addition to the good advice above, you might find the SDL pop up (even though things are running well) if any combination of the following is happening:
- driving at consistently low revs: I've really had to adapt to not putt-putting around town at 2k rpm in the F355. Other cars with this kind of power are happy to go low-rev for as long as you want, but the F355 really likes to run along at 3000-3500rpm, with easy routine shifts around 4k. If you're like me and were taught that revs = wear, this is an interesting learning process to go through. The car is much happier at slightly higher revs than your typical street car.
- are the cats original or aftermarket? SDL problems are fairly common with aftermarket cats. There are solutions to this on both this and the other Ferrari technical forums.
- (now that I think about it, this following one might only be relevant to the 2.7 OBD1 cars, not the 96-99 OBD2 ones... others can confirm?) when the car was shipped or last worked on, the ECU may not have been properly "reset" after reconnecting the battery. Any time the battery is disconnected on your car, once reconnected you'll have to turn off anything electric that's an accessory (A/C, radio, fans, lights, etc) and let the car idle from cold up until the second fan turns on (usually around 10 mins). This lets the ECU "re-learn" its parameters. An improperly initialized ECU will have all sorts of sensor flakiness, for example mine often runs rich if not properly initialized (hence SDLs occurring more frequently).
Hope that helps! Lots of great knowledgeable guys here on the board, but I thought I'd share my amateur experiences as well.