saxo pinking?

1. vtr-man L-plater Joined: May 2011 norfolk Posts: 66 Saxo vtr and a Pug cti 1.9

   #1 4th June 2011, 12:12

   can anybody on here let me know how to stop my saxo vtr engine from pinking? its seriously annoying me! cheers
2. Carlvtr88 Saxperience Post Whore Joined: May 2009 Birmingham Posts: 5801 1.1 106 XN Time, MK2 VTR 01. Ford Focus ST3 CP320

   #2 4th June 2011, 13:39

   some one mentioned pinking on a thread i made. What does is mean mate ?
3. muttonjeff L-plater Joined: May 2011 Posts: 57

   #3 4th June 2011, 14:47

   these may have a knock sensor, swap it out with a good one. If still doing it could be a broken wire on the knock sensor wiring.
   
   If fuel dose is light this can give detonation on medium high loads - sometimes Mass Airflow meter.
   
   Aternatively AIR leaks around the MAP saensor - Airbox/air inlet manfold - so extra air in but not measured - so wrong fuel dose (too muck air not enough fuel)
   
   Dont drive it as it will wear big end, little end, break rings, etc
4. coleman258 Established Member Joined: Nov 2008 Eastbourne Posts: 2474 Astra van daily Black Saxo VTR 16v'd kent PT51

   #4 4th June 2011, 22:51

   Quote:

   Originally Posted by Carlvtr88 some one mentioned pinking on a thread i made. What does is mean mate ?

   +1 i've never heard of it.
5. mlawlan69 Saxperience Forum Bum Joined: Sep 2010 leeds Posts: 4389 MCS R53 S/C 16v furiooo

   #5 4th June 2011, 23:17

   Quote:

   Originally Posted by coleman258 +1 i've never heard of it.

   Quote:

   Knocking (also called knock, detonation, spark knock, pinging or pinking) in spark-ignition internal combustion engines occurs when combustion of the air/fuel mixture in the cylinder starts off correctly in response to ignition by the spark plug, but one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front. The fuel-air charge is meant to be ignited by the spark plug only, and at a precise time in the piston's stroke cycle. The peak of the combustion process no longer occurs at the optimum moment for the four-stroke cycle. The shock wave creates the characteristic metallic "pinging" sound, and cylinder pressure increases dramatically. Effects of engine knocking range from inconsequential to completely destructive. It should not be confused with pre-ignition (also discussed in this article).

   me neither, but just a different word for a term i have heard lol.
6. user_31412 Established Member Joined: Feb 2009 ★ West / North Yorkshire ★ Posts: 1653

   #6 4th June 2011, 23:23

   Adjust your tappets, replace your knock sensor, use Shell V-Power.
7. vtr-man L-plater Joined: May 2011 norfolk Posts: 66 Saxo vtr and a Pug cti 1.9

   #7 5th June 2011, 10:53

   ok so where is this knock sensor then and i'll change the damn thing?, but surely the ecu should sense something is wrong and show the management light?
8. muttonjeff L-plater Joined: May 2011 Posts: 57

   #8 5th June 2011, 15:38

   Pinking is detonation.
   
   It is the combusting of the fuel a fraction too early.
   
   Instead of blowing the piston down and turning the crank around - the fuel is being ignited while the piston is on the way up (too early) - the exploding fuel tries to blow the piston backwards and unchecked its very damaging.
   
   
   Another reason for pre ignition is a carbon build up on the cylinder head - this can be glowing red from the previous ingition cycle and the heat on this carbon deposit can ignite your fuel when IT wants not when the spark says.
9. vtr-man L-plater Joined: May 2011 norfolk Posts: 66 Saxo vtr and a Pug cti 1.9

   #9 5th June 2011, 19:03

   yeah i know what pinking is...i just wanna know why its occurring?, as surely the ECU management system should sort the timing out always.
10. user_31412 Established Member Joined: Feb 2009 ★ West / North Yorkshire ★ Posts: 1653

    #10 5th June 2011, 19:41

    It wont sort out a slipped belt or a faulty ECU or faulty coil pack or incorrect plugs though..
11. marrygold Regular Poster Joined: Aug 2010 Posts: 330

    #11 6th June 2011, 18:18

    Try going to a different petrol station,mine use to do it and i could never work it out,when i changed my plugs the tips were red,it was fuel additives.
    Super store petrol ,its a no no .