All Things Mk5 > Mk5 General Area
disappointing performance continued....UPDATED after a day at MRC Tuning
duncan:
--- Quote from: WhiteGTI on April 01, 2009, 10:32:38 pm ---Perhaps not the route that I would have taken, but I'm glad that your now happy, and that you can enjoy the car. :happy2:
--- End quote ---
what route would you have taken? thing was, inorder to get all the diagnostics for free had to get the map if the power returned, if it didnt i wouldnt have had to pay anything and was very thorough diagnostics. what else could i have checked to see why it was running rich?
ended up paying £500 for the map which was very customised for my car, alot of changes were made from the base model map.
am very happy with the car and still kind of curious why it was running rich, but with the new map is running a good mixture and at the end of the day the car is under warranty so am not going to worry to much, they have said they are happy to reload any maps that get wiped by dealer updates for free and will remove and put back on if i have any problems down the line. if the map causes any issues or directly results in parts getting damaged then they will sort it which is good peace of mind
would really like to know what you guys would have done differently?
also got them to inspect the rear PCV before we started which is good news!!
at the end of the day i dont think they would have put the map on if there were any problems so we spent a good few hours making sure the car had no issues with it, again checking fuel pressure, boost leaks, MAF and replaced the fuel filter!
the question is i guess why was the ECU requesting more fuel than it should be, under map and at stock map...
john_o:
i think the postion both myself ansd whiteGTI were coming from is the underlying issue has not been fixed.
We didnt expect you to do more, we expect whomever is investigating to find the route cause, rather than workaround the issue.
I can fully understand why you have decided to do what you have :happy2: , in the end sometimes compromises have to be made.
consider this , if in the future for some reason the 'fault' is inadvertantly 'fixed' , potentially your custom remap will now be far too lean and need recalibrating back to a 'normal remap'...... (I dont know if the remap adjustment of your fuelling is done on a % basis , or by absolute values?)
now :grouphug: , it works , you are happy with it , and I presume the working parameters of the engine are ok AFR etc.
now go enjoy :driver:
WhiteGTI:
^^^ Exactly what John_o said! :grin:
I'm happy that you've now got a working car, enjoy it, no doubt you will absolutely love it! As i live relatively close to you no doubt we'll pass eachother on the roads soon!
:smiley: :smiley: :jumpmove:
joesgti:
glad you got it sorted! sounds like a right ball ach!
:happy2:
illyun:
--- Quote from: duncan on March 31, 2009, 09:06:00 pm ---
--- Quote from: RunRabbit on March 31, 2009, 09:02:25 pm ---As above, a sensor is more than likely playing up or you have a boost leak. If it's over-fuelling across the rev range then it could well be a MAF or lambda sensor.
--- End quote ---
it is only running super rich past 3500rpm to the limit
--- End quote ---
Very interesting - sounds like the exact opposite to my issue which is fuel too lean past 4k rpm
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