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Car Forum / Alfa Romeo Cars / October 2005156 tickover
On the way to work this morning my 2000 yr. 156 2.0 TS refused to tickover. As soon as my foot left the throttle pedal the engine died. I struggled to work using nifty footwork and judicious use of the handbrake. When I stopped to investigate in the car park I found that after waggling the throttle pedal up and down a few times everything returned to normal. Is this a 'fly by wire' throttle ? and has anyone else seen this effect. I am hoping it's just a sticky cable which some lubrication would cure. Any suggestions welcome. Thanks, mike > On the way to work this morning my 2000 yr. 156 2.0 TS refused to > tickover. As soon as my foot left the throttle pedal the engine died. I [quoted text clipped - 3 lines] > the throttle pedal up and down a few times everything returned to normal. > Is this a 'fly by wire' throttle ? I beleive it is > and has anyone else seen this effect. I > am hoping it's just a sticky cable which some lubrication would cure. Any > suggestions welcome. There have been several mentions of issues with the potentiometer of the fly by wire throttle. ISTR that the Alfa fix is to replace it, but I also STR that other have fixed it with a bit of nifty soldering  SignatureCatman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3 Tyger, Tyger Burning Bright (Remove rust to reply) Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2 Triumph Speed Triple: Black with extra black bits www.cuore-sportivo.co.uk >> On the way to work this morning my 2000 yr. 156 2.0 TS refused to >> tickover. As soon as my foot left the throttle pedal the engine [quoted text clipped - 14 lines] > the fly by wire throttle. ISTR that the Alfa fix is to replace it, > but I also STR that other have fixed it with a bit of nifty soldering I guess they don't get tested as exhaustively as Ferrari pots then! >>> On the way to work this morning my 2000 yr. 156 2.0 TS refused to >>> tickover. As soon as my foot left the throttle pedal the engine [quoted text clipped - 16 lines] > > I guess they don't get tested as exhaustively as Ferrari pots then! Something for me to do at the weekend then ! As it happens I'm a dab hand with a soldering iron and contact cleaner if the potentiometer has any holes in which to squirt it. Thanks catman mike >>>> On the way to work this morning my 2000 yr. 156 2.0 TS refused to >>>> tickover. As soon as my foot left the throttle pedal the engine [quoted text clipped - 22 lines] > > Thanks catman Best of luck SignatureCatman MIB#14 SKoGA#6 TEAR#4 BOTAFOF#38 Apostle#21 COSOC#3 Tyger, Tyger Burning Bright (Remove rust to reply) Alfa 116 Giulietta 3.0l (Really) Sprint 1.7 156 TS S2 Triumph Speed Triple: Black with extra black bits www.cuore-sportivo.co.uk My 156 does not 'fly by wire'. It has a real throttle cable. Thanks to Gazza for the engine bay picture with pointers !. It's working fine at present. I gave the visible pedal rod brackets a spray with WD40 just make me feel good. I hope it doesn't happen again and force me to look at the throttle body end or dismantle the Bowden cable. mike >>>>> On the way to work this morning my 2000 yr. 156 2.0 TS refused to >>>>> tickover. As soon as my foot left the throttle pedal the engine [quoted text clipped - 24 lines] > > Best of luck You might want to try resetting the throttle .. the idle actuator may have got out-of-sync with the ecu. 1. Turn on the ignition but don't start the engine. Leave for 90 seconds. 2. Turn off the ignition and leave for another 90 seconds. You will probably hear the throttle body "click" as the actuator resets the butterfly position. 3. Start the engine without using the throttle ... it should idle, possibly higher than normal, but after a few minutes this should return to normal. You should leav it to idle for around 5 minutes. 4. Take the car for a good thrash .... One other thing. Several years ago I had a real problem getting the car to run when cold. First thing in the morning, it started OK but when you pressed the throttle, she died or spluttered. I can't remember if it was a new MAF or Lambda sensor that the dealer fitted. Once warmed up she was fine. I've also heard that the flywheel sensor can cause starting problems but this tends to be when the car is hot not cold. cheers Gazza > My 156 does not 'fly by wire'. It has a real throttle cable. Thanks to Gazza > for the engine bay picture with pointers !. [quoted text clipped - 39 lines] > > Triumph Speed Triple: Black with extra black bits > > www.cuore-sportivo.co.uk > You might want to try resetting the throttle .. the idle actuator may > have got out-of-sync with the ecu. [quoted text clipped - 20 lines] > I've also heard that the flywheel sensor can cause starting problems > but this tends to be when the car is hot not cold. Mentioed this process to Jamie Porter in Royston a month or so ago when my iddling was dodgy. Told me its a fairytale.. you have to reset the engine ECU with the correct hardware/software first or it has no real effect. Tell Jamie it does work .... I know, because I've done it several times. Once on the MOT lift connected to their emissions PC when I couldn't get the idle to stay steady. Also did this several times when I cleaned the throttle body and changed the idle actuator. As have lots of members of the alfaowner and alfa156.net forums .... Besides it doesn't do any harm ..... > Tell Jamie it does work .... I know, because I've done it several > times. Once on the MOT lift connected to their emissions PC when I [quoted text clipped - 5 lines] > > Besides it doesn't do any harm ..... Thanks Gazza. It's certainly worth a try if it happens again. It's actually behaved impeccably for the last few days. mike It could be ... the only way to really tell is to look under the bonnet. At the business end of the intake pipes you'll see the throttle body. on the left hand side you will be able to see any throttle cable. I've got a picture on my website at http://members.lycos.co.uk/gazza82/images/throttle_inplace.jpg if this helps. Gary > On the way to work this morning my 2000 yr. 156 2.0 TS refused to tickover. > As soon as my foot left the throttle pedal the engine died. I struggled to [quoted text clipped - 8 lines] > Thanks, > mike Thanks Gary. That picture is really helpful. I've printed it out to take home with me. mike > It could be ... the only way to really tell is to look under the bonnet. > At [quoted text clipped - 23 lines] >> Thanks, >> mike |
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