Dear all, my 2003 Lancia Y (1242 8V, basically the same car as Punto II) broke yesterday and had to be towed home. It was driven by my wife, thus I cannot provide any detailed information about how the fault started/progressed.
However, I read out error codes and they are:

P1325 - knock sensor
P0302 - cylinder 2 misfire (which one is cylinder 2 - second from timing belt side or second from gearbox side?)
P0352 - coil B primary/secondary
P0301 - coil A primary/secondary
U1600 - immobiliser read fault

Code light stays on, Engine Check light stays on. I am finding it hard to believe that all four parts reported (knock sensor, both coils and immobiliser) went to hell at the same time, thus I suspect rotten/broken earth. Any idea is very much appreciated.

Hi. Being the Y.. does it have the fragile ezrth cable on top of engine..like the 16valve punto..

I would run a booster earth cable..If the immb. U CODE disappears you are making progress. Charlie

There is an ECU earth wire on throttle body, see picture. I remember that when changing head gasket some 6-9 months ago, I failed to tighten the bolt, which led to red puel pump relay clicking and engine failing to start.
Fuel pump seems to switch on properly this time.
Anyway, I will give it a try.

Since both coils logged a fault....
Check you have spark

Ziggy

(CZ)enda

Progress..??

Cylinder 2 is timing side. Sound coils are shot, worth check same as Ziggy said.

Just a quick update, I do not have time to work on the car:
I deleted the errors from the ECU and restarted the car. It started, staggered a bit, died and the injection light switched on.
"Knock sensor" error.
A day later, I repeated the procedure.
No errors reported, no lights. Still, the engine does not run 100% smoothly and misses a beat now and then.
Spark plugs and cables are brand new. Unless it is just a water ingress/condensation/humidity problem, it definitely sounds very much like one or both coils on their way to a scrapyard, however, any further work will have to wait until I have a spare afternoon to measure the coils or bring another set from the other Y I am about to scrap.

(CZ)enda said:

Just a quick update, I do not have time to work on the car:
I deleted the errors from the ECU and restarted the car. It started, staggered a bit, died and the injection light switched on.
"Knock sensor" error.
A day later, I repeated the procedure.
No errors reported, no lights. Still, the engine does not run 100% smoothly and misses a beat now and then.
Spark plugs and cables are brand new. Unless it is just a water ingress/condensation/humidity problem, it definitely sounds very much like one or both coils on their way to a scrapyard, however, any further work will have to wait until I have a spare afternoon to measure the coils or bring another set from the other Y I am about to scrap.

Click to expand...

Dont bother measuring resistance values
Its pointless
When test they may be okay
But when warm and under load the connections breakdown

I had coil failure and all elements tested okay
Cold it was okay
But got slightly warm and it started causing it to miss and run on just 2 cylinders only


Ziggy

I know it’s an old post, but did you ever get the car fixed? I’m getting the exact same error codes. Mine came after I fixed the head gasket and fitted new “no name” spark plugs. I could really need some help ?

Yes I know it's a hated revival, but we recently had a similar thread on the Panda 169 forum. The problem turned out to be the knock sensor. About £15 on eBay for a pattern part. The info might close the thread for some users.