Technical Random cut- out this morning

[Fiatpuntomk2b]

Driving to work this morning my car ( fiat punto mk2b ) randomly cut out while waiting in traffic , this has happened once or twice before but is very rare. what could this be ?

EDIT:while im here , save doing two threads , my locking fuel cap doesnt want to stay on any more im thinking of replacing it , ive seen a couple of ebay , is this the best place to purchase one ?

 

[oldhammer]

Fuel locking cap?

try here, http://www.micksgarage.com/

13quid ish,

becareful with ebay, they might send you some aftermarket TaT that will be ill fitting,

 

[Ziggy122]

You can get genuine Fiat locking caps with 2 keys

They aint expensive, due to panda's not coming with them... Stupid i know

Eitherway - Get one - you get 2 keys - keep the key in the car so you never forget it in the floors Vin cover (easy and hidden)

Regarding a random cut out
Loose battery terminals?
Starting signs of a failing crank sensor?
Wasnt riding clutch by accident?

Ziggy

 

[fingers99]

For the cutting out, possibly TDC sensor. If it cuts out for any length of time, check for spark at plug, wet plugs (when cranked).

Code read may reveal something, but TDC seldom results in a code.

 

[Fiatpuntomk2b]

You can get genuine Fiat locking caps with 2 keys

They aint expensive, due to panda's not coming with them... Stupid i know

Eitherway - Get one - you get 2 keys - keep the key in the car so you never forget it in the floors Vin cover (easy and hidden)

Regarding a random cut out
Loose battery terminals?
Starting signs of a failing crank sensor?
Wasnt riding clutch by accident?

Ziggy

Where do you recommend getting a genuine one from , Fiat ?

Also forgot to mention in original post -car is a dualogic

For the cutting out, possibly TDC sensor. If it cuts out for any length of time, check for spark at plug, wet plugs (when cranked).

Code read may reveal something, but TDC seldom results in a code.

cheers , will connect it to the laptop tomorrow .

 

[Fiatpuntomk2b]

Fuel locking cap?

try here, http://www.micksgarage.com/

13quid ish,

becareful with ebay, they might send you some aftermarket TaT that will be ill fitting,

cheers for quick reply

looked on the website but got this error

Apologies!
We don't seem to have Fuel Caps available for your Fiat Punto.
Please choose another category below.

Your Car

Fiat PUNTO 1.2 60 (188.030, .050, .130, .150, .230, .250)
From:SEPTEMBER 1999
Toresent
Engine:1242cc 60hp.

 

[oldhammer]

Rcambio is good for Genuine fiat part's.

Shop4parts Stock some Genuine part's too,

Ive Bought off Both and ive had no junk off them up to now,

 

[oldhammer]

forgot to add link,

http://www.ricambio.co.uk/

 

[oldhammer]

cheers for quick reply

looked on the website but got this error

Apologies!
We don't seem to have Fuel Caps available for your Fiat Punto.
Please choose another category below.

Your Car

Fiat PUNTO 1.2 60 (188.030, .050, .130, .150, .230, .250)
From:SEPTEMBER 1999
Toresent
Engine:1242cc 60hp.

Might be best to email ,
not all suppliers will do afull internet list on there parts,

 

[oldhammer]

http://www.eurocarcare.net/contact.html

 

[Ziggy122]

2 seconds on ebay found this


Ziggy

 

[homeward]

2 seconds on ebay found this

Identical to the one I bought for Mrs homeward's Mk3 Panda.

 

[Scooba]

For the cutting out, possibly TDC sensor. If it cuts out for any length of time, check for spark at plug, wet plugs (when cranked).

Code read may reveal something, but TDC seldom results in a code.

What is the TDC sensor? My Punto seems to cut out randomly every now and then, but it usually just starts straight back up again after a minute. No indication on the diagnostic as to why though?

 

[flisko]

What is the TDC sensor? My Punto seems to cut out randomly every now and then, but it usually just starts straight back up again after a minute. No indication on the diagnostic as to why though?

here

u are looking for crank sensor aka tdc sensor

 

[oldhammer]

What is the TDC sensor? My Punto seems to cut out randomly every now and then, but it usually just starts straight back up again after a minute. No indication on the diagnostic as to why though?

you need a tree branch like this,

 

[Fiatpuntomk2b]

Just a quick update on this ,car cut out in exactly the same place this morning .

 

[fingers99]

What is the TDC sensor? My Punto seems to cut out randomly every now and then, but it usually just starts straight back up again after a minute. No indication on the diagnostic as to why though?

TDC sensor = crank sensor (sometimes called "rev sensor"). On the FIRE engines it sits at about 3 o clock to the alternator pulley on the crankshaft.

It's the sensor which tells the ECU that the engine is running and how fast it is running. Without a signal from the TDC sensor the ECU thinks that the engine isn't running, so it cuts spark, cuts the injectors. The ECU won't generally record anything as it believes the engine isn't running, and, if the engine isn't running, it believes that there can't be a fault. Sure fire test, if it conks out for any period of time is check for spark, check for wet petrol smelly plugs. If no spark and no smelly of petrol, TDC sensor is the likely culprit.

A trick which sometimes works is to get someone to waggle the TDC sensor wire while you crank the engine. If it suddenly bursts into life, well...........

 

[Ziggy122]

Other thing is to cool the sensor down - often when hot it fails, a quick cool it'll start till its hot again....

Ziggy

 

[Scooba]

thanks man, thats very encouraging :/ lol. have you had this problem im having before?

 

[fingers99]

Every case I've personally had resulted in plain, simple, fail to start (although in one case the wiggle worked!

But the intermittent fail is well known. Another recorded issue with them (rarer, but common enough to find a place in Canems' documentation) is a hard rev cut at approx 4k rpm).