1999 360 CEL

My CEL came on, stays on, OBD scanner read 5 codes: P0300, P0301,P0302,P0303, P0304...misfires.
Car and engine sound and run fine...any insights?
I know, I know...take it to the dealer....

 

I just checked the service records and found that the same exact codes occured 2 other times...at about 6000 mi and again 7000 mi. I just bought it with 9200 mi and have only driven it an additional 100miles. Each time the Ferrari service mech reported that no misfires were detected...and all was running well. Guess I'll call him to see what he suggests...

 

Do you have a aftermarket exhaust?

 

have your variators been changed or Timing belt been changed recently??

all of those cylinders are in one bank.. Maybe if the variators were changed (lets say 5k mile service, timing belts changed due to variator campaign) then they got a variator or timingbelt off by one tooth on one bank. I would say it was the variator that is off not the timing belt, bc a timing belt would make it run bad and you would notice it.

If nothing was changed then maybe its an ecu problem or cam or crank sensor problem.

Either way take it to the dealer

 

Yes, have a Tubi, but it was installed by the original owner.

 

Variators were done a long time ago.
It did have the 30K service just befire I bought it.
Thanks for the input.

 

You may find that it's an old problem connected to the Tubi and/or Cat pipes/sensors, and the light only shows from time to time.

The previous owner may have been getting rid of the light by 'cold-booting' the system with the battery switch.

 

Yes, that is what I suspect.

 

More than likely the Tubi.