It's time for another round of help the newbie... I can't imagine trying to figure all these things out without the help of the forum. Upon starting my car I get a strange high pitched squeal that only last for 1-2 minutes then stops. Outside temp is around 30 degrees F. thanks in advance for your help. In the video the noise stops between 15 and 17 sec. [ame]http://www.youtube.com/watch?v=08jtCigHdbY[/ame]
i have had that sound for 8 years now of my 355 f1 ownership i have always taken it to be a signal for me to be able to move the car i heard it every single time i started the car, and yes it does take 1-2 minutes till it stops i always thought it had something to do with the f1 system, but that is a complete uneducated guess btw, i love your threads since you remind me of myself do not be shy to ask, trust me the brotherhood is ALWAYS here to support you
It's your air injector. It's part of the emissions system and pumps air through your exhaust until it runs warm. http://ferrarichat.com/forum/showthread.php?t=339882&highlight=air+pump
Yup. Completely normal. The air pump blows air into the exhaust during warmup to get the cats hot. I remember reading a recommendation to idle until the air pump shuts off then drive gently until the oil temp comes up. The drive it like you stole it!!!!
The secondary air pump only runs briefly at cold start. It's a remarkably cheaply built piece of junk that will eventually start to squeal loudly as the crummy bearings start to dry out. Image Unavailable, Please Login
You can drive it until it fails if you like there is no ryme or reason when it will fail. Even as they grow louder with age they can last years longer. It is just an emissions component and does not effect the "engine". It injects air into the exhaust manifols to lower emissions. It will not leave you stuck on the road. If it does fail it will result in a check engine light error of po411 or po410 ( secondary air system fault ). David
Yes it will throw a code causing the engine light to come on. But the codes are read differently on the 95 and eariler cars. 95 and earlier cars are ODB1 diagnostic/managment/Motronic system. Codes are usally retrieved through a series of flashes after you trigger the ecu into a diagnostic mode. ( IE: engine light flashes 1 pause, 1 pause, 1 pause 4 pause. Is code 1114, coolant temp sensor error.) OBD2 standard started in 1996 Where you have a standard diagnostic port on any produced vehicle and a series of standard codes that are common through basic engine and emissions managment no matter who the manufacurer is. David.
I pulled the fuse on my air pump several years ago (1995 F355 M2.7) and have never had a fault code. The law 'round here is to conduct the smog test at full operating temp so it has never been an issue for me. I gather it might be different in the 'states. In actual fact I'm seriously considering pulling the 2ndry air system off my car and saving weight and eliminating a serious potential fire risk.
It's a rather superfluous system that does little other than satisfy a dubious government regulation.
Like many systems... Good to know. Of course now I'll start listening for it whenever I start up mine...
someone asked about emissions testing in the states. Well here (at least in Washington) the car is tested at operating temps. so they would never know that the air pump is dead. I also have a 2.7 car and though my pump has stopped I have never gotten a code or light in the dash. I checked the fuse and it was fine. If this is the largest malfunction in an otherwise perfect car, I consider myself lucky.
