Need some help requiring catalytic converter and shock absorber.

Re: the suspension warning light:

We haven't figured out how to completely eliminate the suspension warning light but here's a way to turn it off except for startup.

On the shock ECU lower yellow connector locate the green/yellow (pin 10) wire and cut it. You can put connectors on it to re-connect if necessary later.

The suspension light will go on for about 30 seconds on startup then will go out until next startup.

Re: alarm red LED:

Yes, you will need a new siren

 

I'm having my 575 siren replaced as I type this.

I am going OEM, but I have heard that the Corvette part works and is a fifth the price (at least in turning off the light and beeping). Is there a definitive answer on whether it actually alarms?

-dsd

 

ferraridriver - where is the location of the shock ECU, Ricambi control boards diagrams are not specific to the location within car?

Thank You

 

Right side of passenger wheel well. 2 screws takes the trim cowl off and it is the large mounted control unit.

-dsd

 

I bought a Corvette siren several years ago as a spare for when mine goes kaput. True to my philosophy that if you have a spare ready chances are you won't need it, mine is still working.

I have heard the Corvette siren does everything except chirp when arming or disarming.

 

On a 575 the vette siren chirps and arms fine, and chirps on disarming. Only the lights flash when the car is violated. No screaming siren.
Bill
FL

 

Calcifer, where are you located, and who is doing the work on your car? Not being nosy here, but the issues with the slowdown light will require someone with some electrical expertise. You can PM me if you wish, and I'll step you or your technician through it.

 

You can have new bungs welded in the exhaust system for the lambda sensors, and I suggest you have that done. There is really no reason or excuse to remove them. With cat removal, they probably thought they did not serve any other purpose (they do), or may have had the issue with switched sensor connectors left and right and couldn't figure out what was going on so they just took them out. Silly imho as they provide very valuable input to the computers.

Does the aftermarket suspension even have the possibility to install motors?
You could also disconnect the connectors to the suspension ECU altogether, though I am not sure that will affect anything else.

 

The search function found just beneath the page numbers above can be very helpful .
Bill
FL

http://www.ferrarichat.com/forum/456-550-575-sponsored-bradan/303529-alternate-alarm-siren.html

ALARM | Genuine GM | 15213135

 

Not true, disconnecting the suspension ECU will cause the light to stay on. I posted the correct procedure above.

 

Dave, so 550 must in that regard be different from the 456 (at least the early ones).
Calcifer, coming back to your question on Lambda sensors, are all 4 sensors missing or just the 2 after-cat ones?

 

Here's a Corvette siren for $ 50.00, ships worldwide. I checked the part number and it's the same as the one I bought from a dealer several years ago.

Genuine GM Alarm Siren Buzzer Fits Rainier cts SRX XLR Bravada Trailblazer Envoy | eBay

 

The 550 is a can bus system with a can line. a bunch of ecus talk to the main motronic ecu via the can line. So the suspension ecu and turning off the suspension light is different from the slow down ecuS and that dash light.

So the suspension ecu light is as Ferraridriver posted.

The "Slowdown ECU light is more complicated to remedy as Cribjj posted. There are threads on it and how to defeat it. If you read and are handy you might be able to solve it yourself. You need some kind of slowdown system because the Ferrari is setup like 2 six cylkinder motors and one side can run while you burn down the other side. That's how you end up with a car be que.

 

I suggest you just get two catalyzers and get the engine work as it is tuned to run by the factory. I have two original cats for you at a fraction of new price. The cats are in fact a part of the engine in the way that the engine calibrations for fuel and spark is tuned with these original cats. Then the slow down will not come on!! You can get great sound with the stock cats if you got no or very little mufflers after it. They work as a "filter" too to take away much unwanted imperfections (soundwise) from the combustion.

 

I eventually did your procedure because I liked knowing ECU was intact except for one wire and becasue someone on Fchat said I would get the "Check OK" at start up which I wanted. However, Disconnecting both green and yellow connectors to suspension ECU will do the same thing. That being said neither procedure gives me the "Check OK" light. FYI....