help please... not running on all 4

1. craigmc L-plater Joined: Sep 2012 scunthorpe Posts: 35 saxo vtr

   #1 23rd October 2012, 12:58

   i started my 02 plate vtr thismorning and instantly i knew it wasnt running on all 4, i have replaced the coil pack and its still like it ( all juddery and lumpy) i took out the spark plugs gave them a clean, put them in coil pack and touched plugs to rocker cover and there is sparks on all 4 plugs,
   i dont know what else to try, my friend is going to bring a compression tester round so will try that later.
   could i have bent some valves?
   it still starts with no other noises.
   any help will be greatly appreciated
2. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #2 23rd October 2012, 18:35

   Try running injector cleaner through the system,if that don`t work replace the MAP sensor.
3. craigmc L-plater Joined: Sep 2012 scunthorpe Posts: 35 saxo vtr

   #3 23rd October 2012, 21:38

   I will try that in morning, I have had compression tested and there all the same, also I have tryed a new crank sensor
4. user_61517 Frequent Poster Joined: Sep 2012 canterbury Posts: 586 3/4 vtr turbo

   #4 23rd October 2012, 21:42

   check the injectors..
5. jones91 Established Member Joined: Jun 2011 Bridgnorth (Shropshire) Posts: 2001 Jdm Dc2 Integra

   #5 23rd October 2012, 22:57

   As above it will probably be the injectors, if you had bent valves you would really know about it
6. f13sta Established Member Joined: Sep 2010 loughborough Posts: 2229 1988 ford fiesta mk2 1.4- 2001 black saxo furio (d

   #6 24th October 2012, 07:26

   Whip the injectors out. And still connected put them on some clean paper and get a mate to spin the engine over (remove coil pack and keep it as far away as poss.
   The idea is that the injectors will spray petrol onto the paper and the one that is broken or at a lower effiency will
   Not spray as far. The injectors are not that expensive from Citroen anyway.
7. Gandi699 Saxperience Post Whore Joined: Apr 2011 Posts: 9100 Amazon green VTR 16v, Inferno RS clio 182

   #7 24th October 2012, 10:52

   Or just get a set from here and have them ultrasonically cleaned (if you so wish)
8. craigmc L-plater Joined: Sep 2012 scunthorpe Posts: 35 saxo vtr

   #8 24th October 2012, 14:12

   i tryed map sensor and it wasnt that. next i took off injector rail and removed coil pack, with the injector rail still connected up i turned her over and watched the injectors squirt, all accept 1 that dribbled. i soaked the ends of the injectors in injector cleaner for 10 min, connected everything back up and............. hey presto!! it all ran smoothly, i put injector cleaner in with petrol to clean pipes and that out.
   
   thanks for the advice lads