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D2 - Fuel and Exhausts Everything to do with getting fuel into the engine, and fumes back out again

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  #11  
Old 31st July 2015, 05:23 PM
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have you also checked the operation of your manifold flaps to make sure they are not stuck / seized and restricting performance.
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  #12  
Old 31st July 2015, 05:45 PM
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Quote:
Originally Posted by Palmer View Post
Ill get it read soon.


Long story short, cats rattling. Cars exhaust note has changed a bit.

Thought it wasnt pulling well today so flicked it to petrol on an open road. Top of third it was struggling to rev and would not go past 6.5k. Obviousely has a 7k redline.



Also the engine light is on and since its been the everage mpg on the dis has gone from 17 to 12. Dont know if its just the dis until i use a tank though.


Any thoughts??
Given what you are saying, i'd get it scanned as soon as!
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  #13  
Old 31st July 2015, 06:48 PM
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How do i check the manifold flaps?



Yeah its being read this evening later on. Drives fine around town and u 6k rpm lol
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  #14  
Old 31st July 2015, 07:09 PM
HPsauce HPsauce is offline
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Quote:
Originally Posted by Palmer View Post
How do i check the manifold flaps?
Pop the plastic engine cover off and look at the two bellows on the front of the engine and the linkages from them. Check nothing is broken and that you can move them by hand.
Get someone to start the engine while you watch them, both bellows should collapse due to vacuum and move the linkages which operate the manifold flaps (inside).

It looks a bit like this though you'll probably have the shorter linkage arms:
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  #15  
Old 1st August 2015, 06:41 PM
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System too lean bank 1 and 2. Any idea on cause? Lol
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  #16  
Old 1st August 2015, 09:45 PM
ainarssems ainarssems is offline
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Low fuel pressure, faulty MAF, vacuum leak to get you started.
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  #17  
Old 1st August 2015, 11:15 PM
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Cheers ill have a badgers
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  #18  
Old 4th August 2015, 09:10 AM
Dave McB Dave McB is offline
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Quote:
Originally Posted by Goran View Post
If you don't mind splashing some cash, MRC tuning coded out my rear lambdas and SAI electric pump that lives in the airbox for £150+VAT.
I wanted the lambdas coded out in advance because I have two 200-cell cats ready to fit.
Whn you coded out the SAI, did you remove anything? Mine is playing up, and id rather code out than have to remove if possible
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  #19  
Old 4th August 2015, 01:09 PM
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I don't think you have to remove anything, as the ECU will no longer care about the signal from N112 or try to run the SAI motor for a few seconds on start up. I'm just guessing that's what they did, I'm not a coder (and the motor was already gone when I got the car back). The other possibility is that they just remove the 'trouble code' from the ECU, which would mean the startup routine would still try to run the pump, just not register a fault code when it finds the pump not working.
I just wanted all that junk out of there
I can clean the airbox much better now when changing the air filter.

Last edited by Goran; 4th August 2015 at 01:18 PM.
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