I don't know if this is related to the O2 sensors I am getting changed tomorrow. Today, when sitting idling, in neutral, foot off clutch, waiting for light to change my 348 stalled out three times. It seems like the low idle is now galloping from 800~1200 RPMs, could this be because of that bad sensor? This is a new issue just starting today.
Try cleaning the connectors to each of the mass air flow sensors. Dirty connectors can cause a hunting idle. Here is a related post from the "other" site: "Thanks Ernie. I had worked on this most of the day yesterday chasing anything that I could associate with getting air into the engine. It turns out that the problem disappeared after I cleaned and reseated the electrical connections to the MAS and the throttle position sensors. I also cleaned and relubed my air filter. I drove it for about 2 hrs last nite with no issues. Started up normally this morning also."
Really sorry you're having so many niggles after finding your dream car Joe. Hope you get them all ironed out and can start really enjoying the car!
Aside from what Dave posted about the MAFS. Since you had the shop replace the O2 sensors, it may be that the car just needs to relearn the warm up process. After the car has sat all night, you want to do this on a cold engine, disconnect the battery for about 15-30 seconds. Now reconnect it and start the car. DO NOT TOUCH ANYTHING. Not the throttle, not the clutch, not the break. Let the car idles by itself for about 15 minutes, or until the cooling fans kick on at least one time. This may get rid of your problem. Any time the battery gets disconnect you MUST go through this process.
Don't know about you, but I am allergic to CO2 poisoning, so baring purchasing some sort of exhaust remover, that would ahve to accomidate 4 tail pipes, how would one do this and not stink out the house? How about the sensors in the house's alarm system that will call the police and the fire department? I guess I could buy two 40" fans, put them in front of the car and have them blow the exhaust out of the garage? It runs fine now w/ new O2 sensors and I am leaving well enough alone.
Yes, an air leak. Joe: as I think I indicated previously in another thread, I had a problem with my Lambda (o2) sensor, and it turned out that I had an air leak.
He did say that one of the sensors was not as tight as it could have been, but in the same breath he thanked me for loosening them for him as they can be difficult to break loose, YEAH I FIGURED THAT PART OUT.
Joe, Open the garage door first. Or, if you want to be extra "safe", push the car out of the garage. Dave
my 348 did this a few times. one of the fixes was adjusting the throttle cable. it had been crimped somehow and was catching on something believe it or not. sounds stupid but hey its a ferrari !
Damn...must be a bug going around Mine has this problem now No stalling, but a fast idle from 1,500 - 2,000 rpm. It all started after returning from getting an oil pipe to the sump replaced, so there's seems no logical connection. Jas
Check the free things first...such as that there isn't something physically touching your throttle bars and cable under the hood (easy to see and touch when you open the rear bonnet lid). Then apply cable grease to your throttle cable in the engine compartment and beneath your center console (it's just two screws under your ashtray to allow you to lift up that piece...well, that and you may want to unscrew your shift knob by twisting on it). If that doesn't fix it, then unscrew the two or so screws that hold down your accelerator pedal box. Often there are rocks and various things that accumulate there and cause havoc. If **that** still doesn't fix it then I'd attempt to unscrew/adjust your idle adjustment screws in the engine compartment. Also, do check the little nonsensical things such as that your air filter isn't clogged/blocked. Add a good upper cylinder lubricant and fuel injector cleaner such as Techron to your fuel, of course, as well. That really gives you an easy 6 seperate and distinct chances to fix your idle at home before you start spending money and shop time away from your car. And even then, I'd go for new fuel filters and new O2 sensors first before getting the Shop too hot and heavy into the car. Can't hurt to have those new parts on, and there's always the off chance that their simple replacement will fix a problem here and there. Beyond all of that, should you still have a problem, I'd suggest applying first a good electrical contact cleaner and then second the Stabilant 22a product to the electrical contact pins under the black data cable lines that go to both MAFs on the far side of your airbox. I applied Stabilant 22a **everywhere** on my 348 Spider...all of the Ground connections on the chasis, all of the electrical connectors...hall effect sensor connection...everywhere current and/or data flows (even to the pins on my ECU's). That's yet another "can't hurt" step that tends to fix and/or prevent numerous 348 electronic issues.
Just an update. 90% sure it's fixed, and it seems to have been caused by moisture in the electrics. Caused by washing the car! Thanks for all the help Jas
