Technical Panda code P0335

[Gerard 971]

Hello!
Fiat Panda 1200, year 2010, Km. 60 000
The engine suddenly stopped, impossible to restart. When cranking I get a couple of ignitions then nothing. The starter motor keep cranking but no start.
On plugging my obd2 interface I get a P0335 code. I replaced the crankshaft position sensor to no avail. It reads 1200 Ohms.
I cleaned the connectors at the position sensor and and the ECU . Nothing..
Any ideas?
Can any one tell me what kind of voltage or resistance I should be getting at the connecteur?
My manual doesn't go into those details.
Thanks in advance.

Gerard

 

[varesecrazy]

Hi ,
did the car stop while driving?,
or refuse to restart once parked??,
we had similar, went through lots of tests and then discovred the timing belt had slipped,

I would go through all the basics before spending money on new parts,
Charlie

 

[Gerard 971]

Hi ,
did the car stop while driving?,
or refuse to restart once parked??,
we had similar, went through lots of tests and then discovred the timing belt had slipped,

I would go through all the basics before spending money on new parts,
Charlie

Hi Charlie!
In fact the car is a rental. From what I gather the engine stopped a few hundred meters after being started. The problem is that I can't find any technical information on this vehicule. Is is the timing belt adjustment similar with the Punto 2006, 1242 cc? I have the book on that one.
I haven't started spending money yet. I have another identical Panda and I just swapped the crankshaft sensor from one car to another.
Can I also swap ECU or are they paired to the anti theft system?

Thank you for your input!

Gérard

 

[varesecrazy]

hi again,
1st press the fuel cutoff under the seat.!!,

ECU's are all CODE'd so it involves LOTS of work,

I would go through the basics first,
fuel supply, then Spark,

does the CODE/ KEY light go out before cranking?,
do the lights dim on cranking??,

Charlie

 

[varesecrazy]

Hello!
Fiat Panda 1200, year 2010, Km. 60 000
The engine suddenly stopped, impossible to restart. When cranking I get a couple of ignitions then nothing. The starter motor keep cranking but no start.
On plugging my obd2 interface I get a P0335 code. I replaced the crankshaft position sensor to no avail. It reads 1200 Ohms.
Thanks in advance.

Gerard

https://www.fiatforum.com/tech-talk/197403-eobd-error-code-list.html

the code is NOT a diagnostic answer, it's a starting point for investigation,
my slipped timing belt flagged up MISFIRE..!!

I 'm guessing your problem lies in the wiring / supply, or another issue,
when you say the cars a rental, can you not just get it replaced / fixed..??,
Charlie

 

[portland_bill]

when you say the cars a rental, can you not just get it replaced / fixed..??,
Charlie

Don't you just love ambiguity.

My take on that statement was that the question is being asked by the repairer or owner, but was not the driver when it stopped, so getting accurate diagnosis may be difficult. If the hirer did something wrong, or thinks they did, you will never get a good diagnostic answer.

As advised above, needs to start with the basics, fuel, spark, cam timing.

 

[Gerard 971]

Hi!

We have a small B&B opération in Guadeloupe and have 3 Fiat Pandas that we rent to our guests.
The car was rented out when it failed and that is why I can't vouch for the validity of the information at the time of failure. On top of that they spoke no French and almost no English...
I like your idea of a timing belt that would have slipped although it is scarry to think it might happen on a low mileage car.
My reasonning is:
When cranking the engine turns unusually fast. (Bad timing = low compression)
I get some firing in the first seccond of cranking. (I presume that at the initial past of the start cycle all cylinders would get injection and ignition).
I also get some firing as long as the starter moteur is engaged but not enough to start the motor..
Which brings me to my precedent question. How do you verify the timing of the belt on that motor? Is it the same as the Punto? I have the book on the Punto

Thanks

 

[varesecrazy]

Hi,
pretty sure your Punto book will be VERY close,

most FIAT 8 valve engines are similar AND the panda / punto are "SAFE" engines where the cam-belt can break and still no piston / valve colisions,

my belt was 7 teeth out - been on there 1 year @ 6K miles,

check the basics, then maybe try tow-starting to see if you can coax it to run at all,
Charlie

 

[Gerard 971]

Hello Bill & Charly!
And everyone else who may have reflected on my problem...
Thank you Charly for sending me in the timing belt direction.
When I removed the timing belt cover I noticed a trace of heat on the plastic. I did not pay much attention to it and proceeded to check the timing. It is identical as the Punto's.
Later, while going on my bike ride the light came on!!
The burn mark on the plastic is just where the low oil pressure and the Crankshaft position sensor wiring passes.
The car had broken down near the top of the climb leading to our volcano "la soufrière". It would have taken 5 to 10 minutes of climb in 1st gear with 4 adults in the car.
I dug the wiring out and fond the air blown by the cooling fan blowing on the exhaust heat shield had cooked the wiring on a 8 cm section. The black convoluted tubing had melted and the wire insulation had broken down causing the 2 electrical leads to short out.
I replaced that section of wiring and it works like a charm.
I am going to inspect the other 2 cars and put some kind of heat insulation in that groove before it happens again..
Thank you!