So after being very happy with my 02 1.6 stilo 3dr my first major problem has crept in.

Symptoms are...
Car keeps cutting out but will start again straight away. Happens at high speeds, low speeds,idling both hot and cold. I plugged in and got p0340 camshaft position sensor fault.

Brought it to fiat and they said it was the Phase sensor. Quoted 700euro to replace it Said timing belt, waterpump would be replaced in that too. So I assume they have to come off to get to it.

Is this the same as the camshaft sensor then? Other thing is I have had a few ASR Loose connections warning on and off with the stalls. Could it be this famous D4 ECU connection or bad earth doing this? Would really appreciate anybodies thoughts who knows more about this than me.

I got the car as a bargain and managed to get some nice cheap mods on it too. I want to keep it but cant spend that sort of money on 02 car.

BurkeyL said:

So after being very happy with my 02 1.6 stilo 3dr my first major problem has crept in.

Symptoms are...
Car keeps cutting out but will start again straight away. Happens at high speeds, low speeds,idling both hot and cold. I plugged in and got p0340 camshaft position sensor fault.

Brought it to fiat and they said it was the Phase sensor. Quoted 700euro to replace it Said timing belt, waterpump would be replaced in that too. So I assume they have to come off to get to it.

Is this the same as the camshaft sensor then? Other thing is I have had a few ASR Loose connections warning on and off with the stalls. Could it be this famous D4 ECU connection or bad earth doing this? Would really appreciate anybodies thoughts who knows more about this than me.

I got the car as a bargain and managed to get some nice cheap mods on it too. I want to keep it but cant spend that sort of money on 02 car.

Click to expand...

Hi, I've only just got my 2002 Stilo 1.6 16v and am working through problems too.
I'm not saying your fault is the same as mine but it sounds possible so it's something to keep in your head just incase and also you can't just pop a new camshaft sensor in to try it because it's behind the timing belt!!!! so it's a good idea to work through options first before committing to something.
Mine was doing ASR loose connection etc, cutting out and generally making me feel I'd wasted my money.
Long story short, I traced it to ECU. I'm electronics trained, so took it to pieces and found lots of bad solder joints for the multiplugs. Resoldered them, put all back and the car ran fine but then a few days later, more (different) faults but nothing like before and very little cutting out.
Camshaft sensor, high coolant temp, engine fault but no lamp!
I came to the conclusion that the heat from the engine has damaged the ECU more than just melting the solder, bit the bullet and ordered a new one (very expensive) as the car cannot be trusted in this half mended state.
Should arrive today and will keep you posted, once it's fitted.
I'm not trying to scare you but the ECU is one thing to keep in mind as it does sound like it may be on it's way out.
However, I am no expert obviously lol

Hi,

My 1.6 stilo also had alot of random error messages that would pop up randomly and cut out engine, ASR, ESP, High coolant, Alternator Etc... this is what i did and for the last 2 months i've not had any electrical problems, so touch wood something i did sorted these out for me...

-Firstly i found out where all earth points where cleaned with contact cleaner and wire wool,
-cleaned connector bins for ECU male and female sides,
-opened ECU and re- soldered a few dodgey looking pins
-cleaned whole of ECU pcb board with electrical contact cleaner
-made a new mount for ecu at side of battery tray... and made new earth connector for ecu

and since no probs hope this helps

SGThirkell said:

I came to the conclusion that the heat from the engine has damaged the ECU more than just melting the solder, bit the bullet and ordered a new one (very expensive) as the car cannot be trusted in this half mended state.
Should arrive today and will keep you posted, once it's fitted.
I'm not trying to scare you but the ECU is one thing to keep in mind as it does sound like it may be on it's way out.
However, I am no expert obviously lol

Click to expand...

Cheers SGThirkell. I have read on here about the ecu problems caused by the heat of the engine. The dealer said he very rarely sees phase sensors on 1.6 go. He said its common on 1.2 stilos and a few alfas but has never seen it on the 1.6. I actually asked if it could be a ECU problem as I used to get high coolant temp, alternator msg too when starting the car from cold. He kinda dodged the question and said I can drive it around to see if a pattern forms...
Yea please keep me posted on your ecu transplant. You gonna fit it and flash the system this weekend?

maskedmagicians said:

Hi,

My 1.6 stilo also had alot of random error messages that would pop up randomly and cut out engine, ASR, ESP, High coolant, Alternator Etc... this is what i did and for the last 2 months i've not had any electrical problems, so touch wood something i did sorted these out for me...

-Firstly i found out where all earth points where cleaned with contact cleaner and wire wool,
-cleaned connector bins for ECU male and female sides,
-opened ECU and re- soldered a few dodgey looking pins
-cleaned whole of ECU pcb board with electrical contact cleaner
-made a new mount for ecu at side of battery tray... and made new earth connector for ecu

and since no probs hope this helps

Click to expand...

Hey maskedmagicians cheers for the info. As I said in SGThirkell's post Im also getting warnings like you, although they are less frequent now than before. I just got used to them and that beep-beep-beep just became part of the car starting!

Unfortunately I'm not good with electrics, I'm alright with standard car DIY stuff but I wouldn't feel confident soldering the ECU. I think this wkend i'll find the earth points with a wire brush & contact cleaner as a start.

Do ye think a crankshaft sensor, not cam, would do anything?? Also one issue niggling on my mind is the rear light has a intermittent fault. Is it just desperate hope that this could be causing some sort of short?

Theres a good clip on Youtube where the guy does re solder the ECU - even if you are good with electrics looks very straight forward and easy to see - he says which pins have dropped. Take connector off and have a look if some are different

BurkeyL said:

Cheers SGThirkell. I have read on here about the ecu problems caused by the heat of the engine. The dealer said he very rarely sees phase sensors on 1.6 go. He said its common on 1.2 stilos and a few alfas but has never seen it on the 1.6. I actually asked if it could be a ECU problem as I used to get high coolant temp, alternator msg too when starting the car from cold. He kinda dodged the question and said I can drive it around to see if a pattern forms...
Yea please keep me posted on your ecu transplant. You gonna fit it and flash the system this weekend?

Click to expand...

This is what the inside of my ECU looked like;

Very magnified and you can see the two worst culprits.
I soldered these and some others that looked bad but didn't totally cure it like I say.

I must not of hit the submit button properly...Nice hd pic of the ecu. If I could see the pins are easily gone like these it wouldn't be so bad to do a quick solder.

I was having a creep around the forum(as always) and saw some old posts of similar issues. Someone was diagnosed with a variable timing problem and paid 500 to have the same problem the next day.

I should also mention I have replaced the battery only 2 months ago. I am going to unplug the map sensor and go for a drive as a first test. gotta start somewhere. no cut out=map sensor. Something tells me it wont be this simple though.

BurkeyL said:

Hey maskedmagicians cheers for the info. As I said in SGThirkell's post Im also getting warnings like you, although they are less frequent now than before. I just got used to them and that beep-beep-beep just became part of the car starting!

Unfortunately I'm not good with electrics, I'm alright with standard car DIY stuff but I wouldn't feel confident soldering the ECU. I think this wkend i'll find the earth points with a wire brush & contact cleaner as a start.

Do ye think a crankshaft sensor, not cam, would do anything?? Also one issue niggling on my mind is the rear light has a intermittent fault. Is it just desperate hope that this could be causing some sort of short?

Click to expand...

in regards to to your rear light fault forgot to mention mine was also doing the same , you can if you can manage to get the brake lever switch out, pulling the plunger with a pair of plier as far as you you'll rear a click or you can buy a new one for abit £12 ish... i replaced mine

So last night I unplugged the map sensor let the car idle to adjust for 10 minutes. It eventually stalled by itself so thought the map sensor is not the problem. Strangely went for a drive after and no engine cut out or warnings...

This morning went for a drive and car cuts out and wouldn't start at some busy lights. Tried for 2 minutes with no luck. After pissing some people off and with help from a stranger we pushed the car out the way.

Then after pushing it starts on first turn of the key? Does this mean anything, rotations etc? Get home and check all fusebox connections, ecu connections, main earth by battery. So since everyone mentioned ECU I checked out Chris Williams recommendation of the youtube vid of the guy fixing his. https:
//www.youtube.com/ watch?v=J_oA3mcWqHo

Unfortunately mine looks alright. No visible damage, burns, missing pins etc. Now I know it may not be visible.



I thinking of dropping it into a Ecu guy monday for another diagnostics. If he also comes out with camshaft sensor then it will have to be. Its 380 euro for a new ecu he said if I do have to go that way. Any thoughts from anyone?