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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » corsa 1.2, 8v poor starting / running rich. ITS SORTED!! » Post Reply

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impstan

posted on 26th Nov 09 at 16:21

Hi all, finally got it sorted, Stu_22 you were correct it was the coolant temp sensor, which was the first thing we changed or we thought we had in fact we had changed the temp guage sensor!! we were told by a vauxhall trained mechanic it did both the guage and ecu on these but we now know it has a seperate one for the ecu, had it changed and its fine. thank god! Oh and just then the guy who did it says " you know that noise you can hear? " yes i said "its the water pump knackered and you may as well do the cambelt, kit as well another £140 quid. great!!


Stu_22

posted on 26th Nov 09 at 14:45

quote:
Originally posted by impstan
been done already, see above!!


Where:o

Its only CTS, lambda and ECU that controll fuel on these engines


stingray1987

posted on 26th Nov 09 at 11:52

if it was the cat being blocked the easist way of telling would be to get someone rev the engine and put ur hand by the exhaust backbox and see if there is pressure out of the back.

if the cat had blocked of colapised it would act as a blockage in the exhaust.


johnhara1

posted on 26th Nov 09 at 11:47

When you fitted the new pump, was it a SPi pump or a MPi pump?


impstan

posted on 26th Nov 09 at 10:54

but the headgasket going wont surely make the engine run rich?? how can it?


ali_corsa

posted on 24th Nov 09 at 18:38

i wouldnt say the cat blocked being the cause of it, just take it to a mot test centre, just see if they will do a emmisions test for you that would tell you if the cat isnt working correctly or not. I would still look at headgasket though


impstan

posted on 24th Nov 09 at 17:58

been done already, see above!!


Root

posted on 24th Nov 09 at 15:25

quote:
Originally posted by Stu_22
I'd say coolant temp sensor first

good suggestion given the symptons


Stu_22

posted on 24th Nov 09 at 15:21

I'd say coolant temp sensor first


impstan

posted on 24th Nov 09 at 12:19

its been sugested to my son by a couple of friends that it may be the cats blocked?, so whats your thoughts on that? it is very high milage 150k plus so i suppose its possible but would that make the car very heavy on fuel? Its currently doing about 20- 25 miles to £5 fuel

thanks for any help, steve


redtom

posted on 20th Nov 09 at 14:44

If it turns out to be the head gasket u2u me i have a headgasket, head bolts, and cambelt for sale :look::lol:


ali_corsa

posted on 19th Nov 09 at 21:33

dont come with icv's is it on cold start, does it run lumpy on it? if so i would be inclined to say headgasket is starting to go...if it was coolant temp it would of picked a fault up on the scanner...it wouldnt be lambda because that doesnt affect the start up...another suggestion would be to check the ecu, unclip the bonnet cable 2 x 20 torx on the right hand side where the rubber door strip runs around 1 x phillips bolt and it comes off drop the ecu down check to see if its not full of water.


am4nf

posted on 19th Nov 09 at 16:13

Could just be that the butterfly valve in the air intake is full of gunk


am4nf

posted on 19th Nov 09 at 16:12

idle air control valve or air flow meter (if 1.2 8v's have them :o)


Root

posted on 19th Nov 09 at 13:06

havn't got a clue but all 1.2 8v's are shite on fuel, mine is and other people I know with same engine say their's is too.


impstan

posted on 19th Nov 09 at 12:59

any ideas, guys?


impstan

posted on 18th Nov 09 at 19:44

Hi all, we are having a problem with my sons 1.2, 8valve. When trying to start its a pig ,starts like its on 2 then 3 then 4, then you have to leave it ticking over for 30 or 40 seconds coz if you try and rev it it trys to cut out. I thought fuel so i changed the filter, blew down the lines, and in the end fitted another fuel pump, no change! so i changed the single point injector unit, no change, so then i went electrics and fitted second hand distributor, coil pack and ballast thingy!, no change, then i fitted new rotor arm, dissi cap and leads, plugs and its still the same and my son says it sems to run o.k when its running but heavier on fuel oh and to top all that we have had it to the local Vauxhall guy and he put it on his scanner and it doesn't come up with any fault, but theres something not right. Any help much appretiated, im at my end of tether!1

steve

[Edited on 24-11-2009 by impstan]

[Edited on 26-11-2009 by impstan]