[Gazman65]

Hi Guys,

I bought a second hand 2005 156 last week, prior to purchase could not fault vehicle at all.
The day the caryard had roadworthy and transfers done, they ran the car dry. I took delivery, refueled and drove for about 50km without issue, then pulled up to a stop sign and it spluttered but didn't cut out, and no warning lights. happened a few more times, then finally stopped at sign and she died. Would not restart for about 5 min. Then finally did got about two blocks and it happened again. this time low pressure warning came up on computer. Stopped and topped up oil it was halfway between two holes on dipstick. But if I let the car just run idling no problem can idle for ages with no issue, pulling up with clutch engaged and she dies. I've been reading about the MFS? sensor was about to unplug and take her for a run and see what happens... but anyone have an idea? I have her booked in for Monday so I'll know more then, but it may help if I can find out prior...to an expensive undertaking at dealer.

Cheers:thumbs:

 

[Gazman65]

OK That didn't work, made it 5 blocks from home under brake, clutch engaged. low oil pressure warning and died..

 

[Tommywho156]

If the low oil pressure light came on there's a good chance of bottom end damage (hence why many call it the "engines f**ked light" ).

The cutting out when warm could be the crank sensor, especially if its starting up again after cooling down. It's worth downloading Multiecuscan (free) and contacting Rarebear on here for one of his modified cables so you can read any fault codes stored on the ECU.

Keep an ear out for any knocking coming from the bottom end but if I were you I'd replace the shells ASAP, they're cheap enough and you can done yourself with the car on ramps/axle stands.

 

[Cuore_Sportivo_155]

low oil pressure warning is normal when the engine stalls, don't worry about that.

seems to me a throttle body issue.

although the car idles all day long, what rpm is it idling? and is the idle stable, shouldn't have any variations except with a cold engine.

If it's the TDC-sensor, the car won't immediately restart but from your description you can sometimes immediately restart?

 

[Gazman65]

Hey Tommy,

I've downloaded the software, just need to source cables, the Low oil pressure that comes on isn't a dash light, it's on the computer info screen, and it only happens pulling up at stop lights/signs the car shows no signs of big end issues, no noise. I really think it's a sensor issue. but I have no idea which sensors are which, just been surfing trying to fine a pic.

I'm thinking with Cuore that it's the TDC, because it won't restart immediately. I've noticed I can here a noise coming from the left side of the motor (from drivers seat) when that stops I can restart.

Cheers:thumbs:

 

[Gazman65]

Hey Guys,

Just went and checked the Blue cam sensor connector and Brown Crank connector, there is no brown on my car... there is a new looking cable where the brown connector is supposed to be. But I disconnected the Cam sensor and took her for a few laps of the block and problem solved. At least I can get to my Alfa Specialist on Monday without one hundred stops.
Thanks for the push in the right direction.:thumbs:

 

[Tommywho156]

Hey Tommy,

I've downloaded the software, just need to source cables, the Low oil pressure that comes on isn't a dash light, it's on the computer info screen, and it only happens pulling up at stop lights/signs the car shows no signs of big end issues, no noise. I really think it's a sensor issue. but I have no idea which sensors are which, just been surfing trying to fine a pic.

I'm thinking with Cuore that it's the TDC, because it won't restart immediately. I've noticed I can here a noise coming from the left side of the motor (from drivers seat) when that stops I can restart.

Cheers:thumbs:

I miss-read your initial post, I didn't mean to panic you regarding low oil pressure.

If you search for the user Rarebear on here and send him a pm for one of his modified KKL leads. He tests them all before sending them out and comes highly recommended. Alternatively search eBay for "Alfa diagnostic cables" and purchase a set from the seller "buy-me-from-dan".

 

[Gazman65]

Thanks Tommy,
You can imagine this began the day after I bought the car, So I've only done about 70km in her in the last week... with fear of a major fault, now that I'm pretty sure, it's just a senor...I'm going for a drive. I haven't taken her for a good run yet.

 

[Tommywho156]

Thanks Tommy,
You can imagine this began the day after I bought the car, So I've only done about 70km in her in the last week... with fear of a major fault, now that I'm pretty sure, it's just a senor...I'm going for a drive. I haven't taken her for a good run yet.

If its a JTS then I highly recommend you give it a good dose of injector cleaner, especially if its been run low on fuel. It's good practice to give it a dose every 3 tanks, the JTS is renowned for injector problems.
Great car when they're healthy...:thumbup:

 

[Gazman65]

Thanks Tommy,
Well it didn't fix the problem, she in the shop now. My Car is a 2.0lt TS looks like the Crank sensor may be the issue, the brown connector at the top of the motor is gone, a new cable runs from the computer fan out straight to the back of the block. So since it's not original it's probably what going wrong, but I'll know more after the diognosis is done.
Thanks for your help.

 

[Gazman65]

Hi Guys, I bought a second hand 2005 156 last week, prior to purchase could not fault vehicle at all.
The day the caryard had roadworthy and transfers done, they ran the car dry. I took delivery, refueled and drove for about 50km without issue, then pulled up to a stop sign and it spluttered but didn't cut out,

So it turned out to just be a dirty fuel line, from the car yard running the car out of fuel.... Thanks for the tips and ideas, I now know allot more about the sensor systems of a 156 so that's a good thing.

Cheers