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Author Topic: GT 170 dpf removal  (Read 20339 times)

Offline Jussa

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Re: GT 170 dpf removal
« Reply #15 on: June 14, 2012, 06:39:34 pm »
Iv also been having thoughts about doing this, but my only concern is smoke. How much will it smoke?

I hady MK4 pd130 mapped to 180 and it smoked like a bitch which really got to me.

Cheers

Black smoke is unburned fuel (too much being injected against the amount of air) . A quality custom map should smoke very little (or not at all) :happy2: (R-Tech Nick will do you a proper map  :notworthy:)

I thought that petrol cars mapped should smoke a bit when given 'the beans' as they generally run rich to protect the engine? :confused:
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Offline AndrewJB

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Re: GT 170 dpf removal
« Reply #16 on: June 15, 2012, 07:16:02 am »
Iv also been having thoughts about doing this, but my only concern is smoke. How much will it smoke?

I hady MK4 pd130 mapped to 180 and it smoked like a bitch which really got to me.

Cheers

Black smoke is unburned fuel (too much being injected against the amount of air) . A quality custom map should smoke very little (or not at all) :happy2: (R-Tech Nick will do you a proper map  :notworthy:)

I thought that petrol cars mapped should smoke a bit when given 'the beans' as they generally run rich to protect the engine? :confused:

But where not discussing Petrol cars here  :congrats:
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Offline GrayMK5GTI

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Re: GT 170 dpf removal
« Reply #17 on: June 15, 2012, 07:13:19 pm »
Iv also been having thoughts about doing this, but my only concern is smoke. How much will it smoke?

I hady MK4 pd130 mapped to 180 and it smoked like a bitch which really got to me.

Cheers

Black smoke is unburned fuel (too much being injected against the amount of air) . A quality custom map should smoke very little (or not at all) :happy2: (R-Tech Nick will do you a proper map  :notworthy:)

I thought that petrol cars mapped should smoke a bit when given 'the beans' as they generally run rich to protect the engine? :confused:

But where not discussing Petrol cars here  :congrats:

My petrol GTI chucks a small amount out as it's mapped to run a lil rich at WOT to protect the components.

Lots of generic diesel maps smoke as they aren't custom to the car, also diesel engines aren't as fussy about air /fuel ratio like petrol cars are so diesel maps are generally mapped a bit rich as protection for the engine (without affecting power)
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