over fueling

[1 Peaky Blinder]

what will cause over fueling problems ? This is on a Fire Proof engine


Answers on a post card .

 

[Peter Pick-Up]

 

[1 Peaky Blinder]

OK will be more specific.

The car starts fine but when warm it will send black smoke out of the exhaust when you rev it.Also it seems to consume more fuel than normal.

So any pointers,It has recently had a HG change.

 

[Peter Pick-Up]

What engine?
Petrol or diesel?

 

[1 Peaky Blinder]

Sorry it is the petrol engine

 

[Peter Pick-Up]

Any detected faults?
Did you read the ECU yet?

http://www.ebay.com/itm/Popular-MS3...:g:un4AAOSwYIxX5W-S&item=172352221300&vxp=mtr

 

[1 Peaky Blinder]

Er no not yet,It is an early Punto so will it have OBD fitted.I think it is a -97 ish model.

 

[Peter Pick-Up]

Could be the 3 post connection OBD, Fiat's own design.( so the Maxiscan is of no use...)
So see a dealer to have the ECU read first.

 

[1 Peaky Blinder]

Ok will have to have a look.

 

[portland_bill]

Usual causes are ignition misfires, or temp sensor showing colder than true temp.