loss of power at low down revs

1. user_40784 Saxperience Forum Bum Joined: Jan 2010 London Posts: 2768

   #1 12th June 2010, 13:18

   It pulls ok until about 1900rpm then at about 2000rpm it dies back down until it reaches roughly 2900rpm then pulls strong again.
   
   This only happens when im pulling away from a standstill whilst feathering the throttle - when im flooring it pulls strong at all revs. Seems to only happen when the engine is very warm i.e after a fairly long drive and its fine when cold.
   
   Just changed the oil filter, engine oil, fuel filter, spark plugs, coilpack and air filter (BMC replica).
   
   Any ideas?
2. Manu Saxperience Addict Joined: Dec 2009 Posts: 11714 A6 Le Mans tuned/A3 TFSI tuned

   #2 12th June 2010, 13:32

   Coil pack maybe ?
3. user_10473 Saxperience Forum Bum Joined: Jun 2006 Swansea Posts: 4946 Bianca White Peugeot 106 S2 Rallye, Saxo VTS

   #3 12th June 2010, 13:52

   Lambda sensor.....?
4. user_40784 Saxperience Forum Bum Joined: Jan 2010 London Posts: 2768

   #4 12th June 2010, 13:53

   Quote:

   Originally Posted by Mr_P Lambda sensor.....?

   wouldnt that bring up the engine management light?
   
   

   Quote:

   Originally Posted by Manu Coil pack maybe ?

   not too sure but i always thought the symptoms of a funny coilpack is permanent (i.e mine is only happens after a while of driving) and more obvious like misfiring?
5. user_10473 Saxperience Forum Bum Joined: Jun 2006 Swansea Posts: 4946 Bianca White Peugeot 106 S2 Rallye, Saxo VTS

   #5 12th June 2010, 13:56

   Usually,
   
   Only reason I say that is because the ecu ignores the reading from the lambda when the engine is cold and when you're at WOT. And you say you don't get the problem in either of these situations.
6. user_10473 Saxperience Forum Bum Joined: Jun 2006 Swansea Posts: 4946 Bianca White Peugeot 106 S2 Rallye, Saxo VTS

   #6 12th June 2010, 14:06

   Quote:

   Originally Posted by johnr32 not too sure but i always thought the symptoms of a funny coilpack is permanent (i.e mine is only happens after a while of driving) and more obvious like misfiring?

   Symptoms of a fucked coilpack vary. Stalling, Misfiring, flat spots. etc. And some get worse as the engine warms up, some get better. Although usually it's moisture entering the pack that is causing the problem, so the problem gets better as the engine warms up and dries the moisture.
7. user_40784 Saxperience Forum Bum Joined: Jan 2010 London Posts: 2768

   #7 12th June 2010, 14:41

   Quote:

   Originally Posted by Mr_P Symptoms of a fucked coilpack vary. Stalling, Misfiring, flat spots. etc. And some get worse as the engine warms up, some get better. Although usually it's moisture entering the pack that is causing the problem, so the problem gets better as the engine warms up and dries the moisture.

   are coilpacks for furios,1.1s the same as VTRs?
   
   Edit: also forgot to mention that the previous owner installed the fuel filter the wrong way round, could this of affected the engine and contributed to what im experiencing?
8. user_40784 Saxperience Forum Bum Joined: Jan 2010 London Posts: 2768

   #8 13th June 2010, 10:39

   
9. Manu Saxperience Addict Joined: Dec 2009 Posts: 11714 A6 Le Mans tuned/A3 TFSI tuned

   #9 13th June 2010, 11:15

   Quote:

   Originally Posted by Mr_P Although usually it's moisture entering the pack that is causing the problem, so the problem gets better as the engine warms up and dries the moisture.

   I had that problem once.
10. user_40784 Saxperience Forum Bum Joined: Jan 2010 London Posts: 2768

    #10 13th June 2010, 19:22

    are the coilpacks on 1.1/furios the same as a vtr?
11. user_10473 Saxperience Forum Bum Joined: Jun 2006 Swansea Posts: 4946 Bianca White Peugeot 106 S2 Rallye, Saxo VTS

    #11 13th June 2010, 19:44

    Quote:

    Originally Posted by johnr32 are the coilpacks on 1.1/furios the same as a vtr?

    The later multi-point injection engine ones are yes. So the furios and most, if not all mk2 1.1i
12. user_40784 Saxperience Forum Bum Joined: Jan 2010 London Posts: 2768

    #12 29th July 2010, 01:21

    Ok ive changed the coilpack but the problem is still there.