Technical What is this?

[fiatnumpty]

Looks like a connector for a thermostat at the bottom of the engine.

The cable was not secured and was resting against, what looks like the, manifold and looks like it’s got cooked.
There is also some red grease liquid on two of the contacts to whatever this coupler is.

Firstly, what is it, and how do I detach it to cleaned it up. It’s stuck.
Secondly, what would be the red liquid greasy stuff on it?
Thirdly, would this, or most likely be the reason the start stop is currently not functioning?
Fourthly, is there supposed to be an undertray on a 2013 Colour Therapy?

 

[Jockstrap]

Red greasy stuff looks like cycle grease, good for fitting bottom brackets and water resistant. Not the best for heat.
Sorry nothing else.

 

[the green vanper]

Marked with an arrow is a rubber seal, so the grease on top of it should not get through to the terminal itself.

If you disconnect the two ends of the connector and you see the grease inside, just clean it with a contact cleaner or IPA spray and let it evaporate before you reconnect.

 

[fiatnumpty]

View attachment 467659

Marked with an arrow is a rubber seal, so the grease on top of it should not get through to the terminal itself.

If you disconnect the two ends of the connector and you see the grease inside, just clean it with a contact cleaner or IPA spray and let it evaporate before you reconnect.

Is there a trick to separating it as it seems to be welded shut. For fear of breaking a clip I have not forced it yet.

 

[the green vanper]

I assume you should push the yellow part in the direction of the wires (marked with the red arrows - I'd start with the top one, as the yellow part should be a single part mould and then pull it away top right on the photo. It might be some kind of lock you have to remove before you detach the two parts of the connector.

 

[fiatnumpty]

I assume you should push the yellow part in the direction of the wires (marked with the red arrows - I'd start with the top one, as the yellow part should be a single part mould and then pull it away top right on the photo. It might be some kind of lock you have to remove before you detach the two parts of the connector.

View attachment 467661

Tried that. Will give it another go.

 

[Jockstrap]

I think a part is missing. OP pic 4/6 looks like the yellow should release the missing bit?
Both sides of the yellow are grooved, and as above the middle bit is a lock?

 

[Jockstrap]

Have a look in ePER for model 2012 onwards, "cable assembly connectors" category. 3 pages look for 4 cable with side slots.

 

[varesecrazy]

The 500 never had a Undertray,
there were aftermarket ones around (common question regarding rusty sumps)

Have you figured out this connector yet?

Conventionally.. The main things in that region are for exhaust Lambda Sensors

 

[jackwhoo]

If there is no engine warning light....leave it alone or you will cause problems that need to be fixed.
The connector could be distorted by heat rendering opening impossible .
If you break it you will need a complete connector then correctly repair the wires to each side of new connector.

 

[fiatnumpty]

If there is no engine warning light....leave it alone or you will cause problems that need to be fixed.
The connector could be distorted by heat rendering opening impossible .
If you break it you will need a complete connector then correctly repair the wires to each side of new connector.

There is a warning triangle as well as the start stoplight. When my daughter and I went out in the car for the first time yesterday the start stop appeared to be working correctly because she kept stalling the car and she didn’t need to turn the ignition on to get going again. Nevertheless, I’m driving home and my first job of the day on the car will be to see if that connector has got a short. The second job will be to see whether or not the brake sensor or the clutch sensor are at fault. Then I was going to do a power down of the car for an hour to reset the ECU.
As the battery has been replaced, I can’t see that that is causing the issue other than how they may have reconnected it.

 

[jackwhoo]

There is a warning triangle as well as the start stoplight. When my daughter and I went out in the car for the first time yesterday the start stop appeared to be working correctly because she kept stalling the car and she didn’t need to turn the ignition on to get going again. Nevertheless, I’m driving home and my first job of the day on the car will be to see if that connector has got a short. The second job will be to see whether or not the brake sensor or the clutch sensor are at fault. Then I was going to do a power down of the car for an hour to reset the ECU.
As the battery has been replaced, I can’t see that that is causing the issue other than how they may have reconnected it.

If that connector had a fault the engine management / mil would be on not the yellow triangle.

Ask on the forum what may cause the yellow triangle to light.

 

[jackwhoo]

Plus look up what conditions need to be met for the stop start to work...it's quite a list

 

[fiatnumpty]

Plus look up what conditions need to be met for the stop start to work...it's quite a list

My daughter stalling the car seemed to make it work. lol.

 

[jackwhoo]

My daughter stalling the car seemed to make it work. lol.

That's not quite what I meant.

The engine ecu has to record a number of conditions for stop start to function
For instance rear heated window off,
Battery state of charge sufficient plus several others

 

[varesecrazy]

That's not quite what I meant.

The engine ecu has to record a number of conditions for stop start to function
For instance rear heated window off,
Battery state of charge sufficient plus several others

My Punto has always restarted like this,
But not Run Stop - Start cycles for 6 years, 40,000 miles

 

[Jockstrap]

Maybe no help at all . Photo of my 2008 1.4.
As varesecrazy notes, equivalent on mine looks like the lambda sensor connection.

 

[fiatnumpty]

I need a new Delphi connector, my one has been baked and is very brittle. Only a little gloop inside which I have now washed out with isopropyl alcohol.

 

[fiatnumpty]

Added to this. Is this battery correct? It is a star line S. There is also a loose none connected cable.

 

[fiatnumpty]

Connected cable to live terminal. Reset ecu. Start stop working. Yey.