Technical Fiat Panda engine turning

[badenjan]

Good day.

I hope you guys can help me.

While I was driving from one town to another uphill, my car suddenly just stopped working, the rev counter dropped to 0 and does not want to start. I have checked the timing belt and was still in place. engine only turns.

I have used an OBD scanner and it shows P0335 crank sensor position a circuit.

So I have done the following:
Replaced spark plugs
New cam sensor in
New crank sensor in
Checked timing marks of timing belt. still in place.
checked battery - still good and voltage still good
replaced Ignition coil

And still the engine only turns and the same error comes up. even after resetting.

What else can I check

 

[bugsymike]

Any chance the wiring to the crank shaft sensor is damaged?
I had crank sensor go on a 1.9td Doblo after 20 minutes cooling down I was able to drive home which is quite common .
I have had Punto wiring rotted through at the ECU plug, wire broken inside plastic sheathing so took some finding.

 

[badenjan]

Any chance the wiring to the crank shaft sensor is damaged?
I had crank sensor go on a 1.9td Doblo after 20 minutes cooling down I was able to drive home which is quite common .
I have had Punto wiring rotted through at the ECU plug, wire broken inside plastic sheathing so took some finding.

I will have to check for that

 

[Pugglt Auld Jock]

What year and what engine? There is a known problem with ECU plugs and associated wiring coming loose on the smaller engined version. I've seen pictures where people have put cable ties around the ECU plugs to make sure they are tight into the ECU.

 

[badenjan]

What year and what engine? There is a known problem with ECU plugs and associated wiring coming loose on the smaller engined version. I've seen pictures where people have put cable ties around the ECU plugs to make sure they are tight into the ECU.

Fiat Panda 1.2 Dynamic 2007

 

[koalar]

Does the rev counter move while cranking

Does your scan tool register any revs

 

[badenjan]

My rev counter does not move

 

[badenjan]

Does the rev counter move while cranking

Does your scan tool register any revs

View attachment 431131


View attachment 431132

My rev counter does not move

 

[koalar]

Great signal not seen by ECU

Are all the other warning lights okay

Is the oil, battery, engine check light all lite when you switch the ignition on

Does the immobiliser light go out


Do you hear the fuel pump prime

 

[badenjan]

Great signal not seen by ECU

Are all the other warning lights okay

Is the oil, battery, engine check light all lite when you switch the ignition on

Does the immobiliser light go out


Do you hear the fuel pump prime

oil, engine lights all lite

immobiliser light still on
do hear the fuel pump prime

 

[koalar]

Great

immobiliser light still on

The ECU will not do anything, no signal from the Crank sensor

The P0335 code hints it's not just the key

Do you have a test light or multimeter

Do you have a spare key

 

[badenjan]

Great

immobiliser light still on

The ECU will not do anything, no signal from the Crank sensor

The P0335 code hints it's not just the key

Do you have a test light or multimeter

Do you have a spare key

i have a multimeter, will test tomorrow morning. bit too dark now

I do have a spare key

 

[badenjan]

Great

immobiliser light still on

The ECU will not do anything, no signal from the Crank sensor

The P0335 code hints it's not just the key

Do you have a test light or multimeter

Do you have a spare key

tried just now with spare key. still nothing

 

[koalar]

Great

Meter on volts but one lead on the battery negative and the other on the engine block

Crank the engine

Voltage should remain under 0.2V but under 0.5V is still fine

Here's mine with a faulty earth and the block is going to battery voltage while cranking

And he immobiliser light stay on

So a good place to start

 

[badenjan]

Great

Meter on volts but one lead on the battery negative and the other on the engine block

Crank the engine

Voltage should remain under 0.2V but under 0.5V is still fine

Here's mine with a faulty earth and the block is going to battery voltage while cranking

View attachment 431133


And he immobiliser light stay on

View attachment 431134

So a good place to start

okay, now my immobilser light goes off, but engine light stays on

 

[badenjan]

Great

Meter on volts but one lead on the battery negative and the other on the engine block

Crank the engine

Voltage should remain under 0.2V but under 0.5V is still fine

Here's mine with a faulty earth and the block is going to battery voltage while cranking

View attachment 431133


And he immobiliser light stay on

View attachment 431134

So a good place to start

voltage 0.1

 

[koalar]

okay, now my immobilser light goes off, but engine light stays on

Engine light should stays on until its started

Is the oil pressure light going out, very quick while cranking

As soon as you stop cranking is there a delay before it comes back on

Does the battery light go out as you are cranking

 

[koalar]

voltage 0.1

Dam

That's a very good result the battery earth is not the fault

 

[badenjan]

Engine light should stays on until its started

Is the oil pressure light going out, very quick while cranking

As soon as you stop cranking is there a delay before it comes back on

Does the battery light go out as you are cranking

lights still on. normally it goes off when engine runs, but cranking stays on

 

[koalar]

What is the battery volts