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Can anyone tell me the significance of the orange dashboard
light "CHECK ENGINE 7-12" on a 1995 456 GT?
What the exact cause of the problem is needs to be determined by a Ferrari specialist with access to the OBD software, or a Ferrari dealer.

All I can say is this: you need to stop driving the car as soon as possible and have the car trucked to your nearest service centre.

This is most likely a SERIOUS problem with your engine.



Onno



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It is probably due to an issue with the Cats. It could also be a bad spark plug or a cracked manilfold. Per JazzyO's comments, you will need to take it to a Dealer to get it diagnoised.

On occasion you will get a false positive. You can try turning the battery on and off and then resetting the engine management system (directions on how to do this will be in the owners manual). If the light Check Engine light then comes back on after a few minutes of driving, you will need to take it to the dealer.
 

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Discussion Starter #4
Check Engine Light Solution

Thanks Boxer for the prompt reply concerning the CHECK
ENGINE light on my 456.I followed your suggestion about
turning off the battery and restarting.The light has remained
off. Thanks again!
 

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CEL reset

This thread mentions
You can try turning the battery on and off and then resetting the engine management system (directions on how to do this will be in the owners manual). If the light Check Engine light then comes back on after a few minutes of driving, you will need to take it to the dealer.

I checked the owners manual and could not find this reset procedure, can anyway fill me in?

I thought the ECU kept errors in EPROM so battery disconnect will not clear.
I presume OBD scanner reset is a better approach? This needs to be followed by a proper drive cycle right?
Thanks,
Ron
 

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RM- Welcome to Ferrari Life. Here is the ECU reset procedure.

1) Turn off all accessories, especially the A/C and radio.
2) Disconnect the battery using the Battery Disconnect Switch.
3) Wait until the car is full cold (overnight) or 30 minutes if she is already cold.
4) Put the key into the ignition and wait 30 seconds.
5) Turn the ignition to On and wait 30 seconds.
6) Turn the ignition to Off and wait 30 seconds.
7) Turn the ignition to On, wait for the Check OK lamp and start the engine.
8) Let the engine idle for 10 minutes with no inputs
9) After 10 minutes, you can turn on the A/C and radio, inserting the code if it is a Becker radio.
10) Drive the car gently for 20 minutes to let all the self-learning procedures complete.
 
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reset procedure

Thanks Taz,
Any idea if this procedure better than using a generic OBD scanner to clear error codes?
In either case dont we need a drive cycle to get the OBDII readiness codes?
Regards,
Ron
 

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Ron- A generic OBD reader only resets engine codes, but those are the primary problem on most late model Ferraris. Many of those transient codes are caused by bad connectors and transient voltages caused by those connectors.

One solution that has helped many owners is to use Dave Helms' gold connector kit (Scuderia Rampante Innovations).

The ECU reset is a good cure for transient engine faults, but is still no substitute for a good SD analysis or replacement of the connectors causing all the problems.
 
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As a FYI. Ferrari of San Francisco has serviced my 599 and I know they didn't miss anything major.
But after a regular weekend from Sonoma to Sacramento 125 mi on-way we parked for a couple days at our place. Returning that Sunday, the Check Engine Management Systems light went on and stayed on even after a few respected turn-off, wait, then on again.

HATE that.

we were less than a quarter tank and knew I had to fill up on way home anyway, so thought even after resetting the gas cap it might go way: nope.

filled it : nope.

wasn't flashing, and yellow so it SOUNDED NORMAL and handled normal. If this were my first rodeo I would panic. But of course we only picked up this car two days earlier and our first time to truly drive it.

decided that even with Ferrari Emergency roadside assistance [we are still under warranty] that them picking it up and us finding our own way home, my AAA 100 mile flat bed would be better but we decided to 'risk it'. Yup we knew this may in fact not be a huge problem.

also, decided--her surprisingly in tune-- thought this may just be a glitch in a sensor as everything sounded/felt normal.

later, next day, at home it did it again. Have the person whom sold it to me living about a mile away. We both decided that I should drive to local Ferrari and check it out.

BUt GOE [ghost of enzo] I needed to stop at the dollar store for some art junk and after getting in and starting it went away?!?!?!?!

will still decide later to check it out.

Taz always has a non-panic answer that is spot on in these situations. So gladly didn't need to reset the system YET, gut this page will be on quick find if happens again
 
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