Hi fellows and experts, i am facing starting trouble with my modena maybe someone has an idea? i go thru normal procedure...unlock..turn the key in position 1..10 sec.. check ok light is on (sometime it says ASR off) ... and i already hear the clicking noise from airmass regulator, on the left bank (its a LHD)...turn key position 2... ignition..only one bank is firing. Its nothing to do with Air Mass Sensors / Regulators - i changed the plugs left and right and the same clicksound happen on the other side. any idea?
hmmm... but why it makes that sound? do you think its some transmission failure by a broken cable/plug?
Dude.. not inspiring me with what I'm hearing.. MAF sensors don't click. If you're thinking the throttle body, then you can try turning off the main power and see if they relearn. Could be a trashed throttle body.. As far as plugs and coils, this isn't some 1980's car with a distributor. If ALL plugs aren't firing on the side of the engine.. I wouldn't think it's a plug or a coil issue.. I'd be thinking ECU or upstream. BTW did you check the fuse for the ECU's behind the passenger seat? How's fuel output on the side not firing? Is there a tech with an SD2 that can give it a scan locally. It's hard to diagnose on the internet...
I read that he swapped plugs side to side; now I think he replaced all plugs. If the former it is probably a plug issue. If the latter it tells us nothing and you are on the right track. Thomas isn't going to solve this with the current knowledge base.
Agreed if plugs changed the issue of the side. My question is why the plugs fouled in the first place only on one bank...
How's the battery condition? Try this as Curt suggested. Disconnect the battery and ....... This procedure is ensuring that the motorized throttle bodies and flaps have enough time to reset properly and that the engine re-learns its adaptive parameters. Resetting the Throttle: If the idle is very uneven, to the point where it is sounding as if the car is having a hard time running, it might the AFMs trying to re-learn the fuel mixture. Try turning the IGNITION on, but not starting it. Once it says SYSTEM CHECK OK, press the accelerator pedal down to the floor, and hold it there for 5 seconds and then release. This will tell the throttle bodies to re-calibrate. Wait 5 more seconds then try starting the car. Sometimes the re-learn is required after you swap AFMs.
hi guys, thanks for the hints - i willl go thru and see whats the outcome. battery is fully loaded. i also took out the ECU's for checking at a ECU workshop - but they are okey. and yes of course its not the MAF that sound - its the throttle behind. i will try to reset the throttle and give feedback later. thanks so much - i hope i find the gremlin.
Whatever you do, don't stick your fingers into the throttle plate to give it a hard push. You'll whack the throttle body.
okey - here is an update: I disconnected the battery for 30 sec. ASR is always off (for unknown reason) followed the instructions below. what happened, both banks are firing. I waited and let the car idle for 4 min - and started to move it - but the pedal push shows no reaction, i can only shift to 2nd gear (but no reaction of a pedal push). I went thru the whole procedure again, both banks are firing, and sometimes it sounds really bad (nailing sounds). in the end no luck. i also tried electronic contact spray on the joints, but that doesn't seem the problem.
It's your car and I have no beef in this.. but on the above I wouldn't run it again and I'd get it to someone who can properly diagnose what's going on. If it's a slipped belt running it will make things even more expensive. The ASR always being off, and odd electrical issues.. you'll need an SD2 for diagnosis.
alrite, thanks for your time! thats why i like the older cars - you still can get a glimpse whats going on cheers thomas lets see what ferrari berlin says.
