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Old 27-09-13, 08:01 PM   #1
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Default 2007 e7 taxi low fuel pressure black smoke

Hi wonder if any of you's can help me have a 2007 e7 and when you accelerate quickly the smoke behind you is unreal if you apply the throttle gently then it's perfectly acceptable but if you need to pull quickly away from junction of bad. Anti pollution light keeps coming on and off even though it has no dpf and the software functionality has been mapped out. I have run a fault code scanner and it popped up with low fuel pressure. Will it be the pump or the injectors any help greatly apperciated.
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Old 27-09-13, 08:09 PM   #2
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Assuming new shape Check your intercooler is not leaking as this reduces the airflow and means plenty fuel but not enough air.

Antipollution fault has nothing to do with DPF it comes on with ANY fault relating to fuelling

Might be worth getting a live data reading for fuel pressure just to be sure but we have had no injector issues on new shape mainly electrical gremlins

We had to replace 2 of our intercoolers although it did not affect performance much they did smoke injectors and pumps not really a great problem on these its usually airflow related.
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Old 27-09-13, 08:12 PM   #3
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Quote:
Originally Posted by reliable406 View Post
Assuming new shape Check your intercooler is not leaking as this reduces the airflow and means plenty fuel but not enough air.

Antipollution fault has nothing to do with DPF it comes on with ANY fault relating to fuelling

Might be worth getting a live data reading for fuel pressure just to be sure but we have had no injector issues on new shape mainly electrical gremlins

We had to replace 2 of our intercoolers although it did not affect performance much they did smoke injectors and pumps not really a great problem on these its usually airflow related.
If I temporarily by passed the inter cooler with some hard pipe that would eliminate the intercool and see if it improved for a test run? I understand the hot air wouldn't be cooled but would presumably let me see if it improved?
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Old 27-09-13, 08:14 PM   #4
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If it is the intercooler there will be tell tale signs of oil spray coming from the fins look for oily spots where there should not normally be any oil.
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Old 27-09-13, 08:17 PM   #5
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If it is the intercooler there will be tell tale signs of oil spray coming from the fins look for oily spots where there should not normally be any oil.
I'll have a look not that I have noticed. Do you have a few of these your self?
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Old 27-09-13, 08:23 PM   #6
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We have 10 new shape and 1 old shape but its getting replaced soon as its just too worn out now at 400k miles
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Old 27-09-13, 08:29 PM   #7
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We have 10 new shape and 1 old shape but its getting replaced soon as its just too worn out now at 400k miles
You able to do live data ? If I'm stuck fancing having a look to diagnose? I'm only in st.andrews so not too far I'd obvy square you a for your time? Just don't want to put it into a garage for them to take the piss I prefer working on the Skodas.
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Old 27-09-13, 08:31 PM   #8
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Im based in Glasgow a bit of a run for you !! check your intercooler and pipes first
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Old 03-10-13, 01:45 PM   #9
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Im based in Glasgow a bit of a run for you !! check your intercooler and pipes first
Checked all the pipes no sign of a leak. Got the following fault codes p0089 p1198 and p0000 any ideas
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Old 17-10-13, 07:14 PM   #10
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Any one any help blanked off the erg and seems to be a very very little improvement.
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