citroen zx query

1. krisdiamond91 Infrequent Poster Joined: Nov 2011 barry Posts: 138 saxo east coast renault scenic merc c200 2 mo

   #1 4th January 2012, 23:43

   i was wondering if anyone can help me with a zx problem. i know its not a saxo but a mate of mine has a 1.4 r reg zx and its cutting out on him. it can happen at any time, he says the engine will start to run lumpy then cut out. problem is he cant start it then for a good 20-30 minutes. he also said that on occasion it will suddenly shoot up to 3000 revs and sit there. blipping the throttle helps but it goes back up again.
   he is talking about giving the car to a guy he knows from work for free, but if i can diagnose the problem i may be able to nab the car off him instead as this guy isnt mechanically minded.
   hes sent the engine management off at a cost of 60 quid and its come back as a pass so its not that.
   any thoughts would be greatly appreciated as hes taken it to a mechanic friend who is also stumped?
2. kennym1987 Established Member Joined: Sep 2007 Armadale, West Lothian Posts: 1230 flatty 16v sleeper and a regular vts

   #2 5th January 2012, 03:27

   coolant tempreture sensor? icv?
3. Cam Saxperience Post Whore Joined: Nov 2010 Kent Posts: 8439 Gen 7 Celica 190.

   #3 5th January 2012, 03:32

   Mechanic friend what is he a tyre fitter... its the idle control valve.
4. krisdiamond91 Infrequent Poster Joined: Nov 2011 barry Posts: 138 saxo east coast renault scenic merc c200 2 mo

   #4 5th January 2012, 23:07

   yeah i thought the same thing lol. it has to be either icv or a sensor. he actually bought the car from this mechanic and hes maintained it for him for the last couple of years, wont be going to him then lol.
   iv also heard that the coil pack can surge and damage the ecu but it will still show as a pass on the computer, not sure how true that is tho?
   would the icv stop it from starting again for 20-30 mins?
   i had a crank sensor go on a mondeo i had and had the same non starting issues.
5. Ben_SaxoForte Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project

   #5 5th January 2012, 23:10

   i wouldn't of thought the icv would stop it from starting, sounds to me like somethings getting too hot if it takes 30mins to restart
6. kennym1987 Established Member Joined: Sep 2007 Armadale, West Lothian Posts: 1230 flatty 16v sleeper and a regular vts

   #6 6th January 2012, 06:45

   Quote:

   Originally Posted by krisdiamond91 yeah i thought the same thing lol. it has to be either icv or a sensor. he actually bought the car from this mechanic and hes maintained it for him for the last couple of years, wont be going to him then lol. iv also heard that the coil pack can surge and damage the ecu but it will still show as a pass on the computer, not sure how true that is tho? would the icv stop it from starting again for 20-30 mins? i had a crank sensor go on a mondeo i had and had the same non starting issues.

   if the crank sensor goes you get no spark and the car wont start even after 30 mins
7. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #7 6th January 2012, 08:33

   Quote:

   Originally Posted by kennym1987 if the crank sensor goes you get no spark and the car wont start even after 30 mins

   The crank sensor sends a signal to the coil pack enabling it to produce a spark.
8. krisdiamond91 Infrequent Poster Joined: Nov 2011 barry Posts: 138 saxo east coast renault scenic merc c200 2 mo

   #8 9th February 2012, 00:37

   i got an update on the car. although it looks like im not gonna be able to get the car off him. he tried the turn the key so many times to reset the ecu trick and said every time it cuts out and he tries this the car restarts. so thinking its a knackered ecu mabey?
9. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #9 9th February 2012, 09:47

   When a coil pack becomes worn out they often fail when the engine is warm mate,then if you allow it cool down it`ll start up again.

   1 user thanked this post: krisdiamond91
10. krisdiamond91 Infrequent Poster Joined: Nov 2011 barry Posts: 138 saxo east coast renault scenic merc c200 2 mo

    #10 18th June 2012, 01:07

    its only taken four months but i have managed to get this car off the guy who had it off my mate. started it and it started hunting for an idle. then conked out. restarted it with some pressure on the gas pedal and it drove home sweet as a nut. so now iv got my hands on it i can replace the icv and coil pack and take it from there.