Black smoke when revving my citi golf

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Fagrodeen
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Black smoke when revving my citi golf

Post by Fagrodeen » Tue Sep 12, 2017 6:32 pm

Hi guys, I own a 2009 city golf 1.4i. I have a mileage of 172 000 km on the car. I experienced high fuel consumption recently after I had the car serviced. I replaced the Map sensor and the coolant temperature sensor with OEM parts by VW. If I rev the car black smoke exhausts by tail pipe. If I drive say 160 km/h no smoke even then appears only when I rev the car. Diagnostics do not find any faults. What can I do?
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keval
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Re: Black smoke when revving my citi golf

Post by keval » Wed Sep 13, 2017 8:55 am

Sure u didnt fill diesel?....just joking, check airflow sensors
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Kyle
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Re: Black smoke when revving my citi golf

Post by Kyle » Wed Sep 13, 2017 9:32 am

Don't rev it then
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Re: Black smoke when revving my citi golf

Post by Neuk » Wed Sep 13, 2017 9:34 am

Kyle wrote:Don't rev it then
Or drive at 160km/h everywhere.
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Re: Black smoke when revving my citi golf

Post by ALRoN73 » Wed Sep 13, 2017 4:37 pm

Neuk wrote:
Kyle wrote:Don't rev it then
Or drive at 160km/h everywhere.
Both great ideas :thumbup:
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Re: Black smoke when revving my citi golf

Post by dubz-on-drugz » Wed Sep 13, 2017 9:10 pm

Is that not signs of over fueling ?



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Re: Black smoke when revving my citi golf

Post by panic-mechanic » Thu Sep 14, 2017 7:58 am

It does not have an airflow sensor.
Oh look, another failed mpi.....same thing in comon. 2009.
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Re: Black smoke when revving my citi golf

Post by TDIFlava » Thu Sep 14, 2017 8:09 am

Why did you replace the map sensor was it faulty? try to refit the old one maybe see if it works
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Re: Black smoke when revving my citi golf

Post by panic-mechanic » Thu Sep 14, 2017 8:42 am

Becuase that is how a lot of people recommend you do daignosis. Change everything that you think ot could be and hope it solves the problem.
Stephan van Tonder - Jhb - Putfontein Benoni
'07 Audi S6 V10 - beast !!!!!
'05 Audi A6 3.0L TDI Avant
'09 Audi Q5 3l tdi
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Re: Black smoke when revving my citi golf

Post by TDIFlava » Thu Sep 14, 2017 9:03 am

You right Panic part changers, like panel beaters thees days change the panel not repair
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Current:
Audi A3 8p TDI (Decat, twin S4 tail pipes, 17" rims, SQ sound system) (103kw/420nm)
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Citi Golf 1.4 Sport (RIP)
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Re: Black smoke when revving my citi golf

Post by Kyle » Thu Sep 14, 2017 9:05 am

panic-mechanic wrote:Becuase that is how a lot of people recommend you do daignosis. Change everything that you think ot could be and hope it solves the problem.
90% of "Mechanics" in SA
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Current:
'03 BMW E46 330i Individual

Ex:
'06 Impreza 2.0R Wagon
'03 S3 8L
'11 A3 1.6TDi
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'00 A4 2.4 V6,
'09 Ibiza Cupra 1.8T,
2013 Vivo Gran Turismo,
E36 M3 Coupe,
E46 320i Individual MSport,
'98 Civic V Tec,
E36 318is Msport,
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GOLF MK1 GT


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Re: Black smoke when revving my citi golf

Post by smashedmink » Thu Sep 14, 2017 11:07 am

Is the coolant temperature sensor not a common problem causing over fueling ?
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Ex: 2003 Mk4 Golf GTi

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Re: Black smoke when revving my citi golf

Post by panic-mechanic » Thu Sep 14, 2017 11:27 am

Only if it is faulty. :wink:









Which you can check bu loking at the temparature reading block in vcds. It will differ from what the engine actually is.
How do you know how hot the engine actually is.
Well before you start it in the day it will be basically ambient. If you don't know what ambient is open the weather app on your phone, it will be damn close to that.
Then If th engine had been running wait for the fans to come on. That is between 95 and 98 on most cars. If the water temp is displaying 10 degrees you know it's broken......
Simple case of using tools , some deduction, some logic and some intelligence.
Combined it is called common sense.
Stephan van Tonder - Jhb - Putfontein Benoni
'07 Audi S6 V10 - beast !!!!!
'05 Audi A6 3.0L TDI Avant
'09 Audi Q5 3l tdi
'95 Audi 90 coupe quattro
'13 VW CC 2l tdi (repair project)
'05 Touareg v10

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Re: Black smoke when revving my citi golf

Post by smashedmink » Thu Sep 14, 2017 1:27 pm

panic-mechanic wrote:Only if it is faulty. :wink:









Which you can check bu loking at the temparature reading block in vcds. It will differ from what the engine actually is.
How do you know how hot the engine actually is.
Well before you start it in the day it will be basically ambient. If you don't know what ambient is open the weather app on your phone, it will be damn close to that.
Then If th engine had been running wait for the fans to come on. That is between 95 and 98 on most cars. If the water temp is displaying 10 degrees you know it's broken......
Simple case of using tools , some deduction, some logic and some intelligence.
Combined it is called common sense.
Makes perfect sense :hug:
Current: 1991 VW Fox 1600L

Ex: 2003 Mk4 Golf GTi

132hp/98.5kw & 204nm atw @ Oettinger Edenvale

Ex: 1998 Mk3 Jetta CLi 2.0


116.6hp/87kw & 179nm atw @ Stealth (Coastal + NF 5ron)
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