EML light come on and off, car is jerking, sometimes does no

liopik · Post by **liopik** » Fri Jul 31, 2015 3:34 pm

Hi.

I have a Corsa Breze, 1998, 1.4, 8v, X14SZ engine.
Few months ago car started jerking when accelerating on 1st, 2nd, and 3rd gears. I did not pay too much attention to this. But a month later I saw a light(engine with spark, EML, I guess) coming on and off on dashboard. And then revs go up just randomly on neutral. And if I will switch the engine off when this light is on, then its terribly hard to start the engine. And now even worse: car might not start even if the EML is not on. All this start to happen after 30 minutes of driving. When engine is cold, it starts 1st attempt, with no problems at all.
Been in 3 garages. None of them found any faults on computer. Though, one garage suggested to clean the throttle body (60 quid wasted). Another garage suggested to change camshaft sensor (70 quid wasted). 3rd garage suggested to change coolant sensor(30 quid wasted). And the problem is still there.
Then, after reading this forum, I bought a EGR valve gasket for 3 quid and replaced myself, cleaned EGR valve properly. Now, car is not jerking at all. But the EML still comes up from time to time for 10-60 seconds(or so). And the engine starts very hard after is was switched off with eml light on, and might start hard even if engine was switched off with no eml light on. Please, see the video attached. In the beginning of this video I did not press accelerator, though engine was running on 1000 revs, instead of 800 as normal. And pay attention how the engine started.
https://youtu.be/uYPX3wTelLI

https://youtu.be/uYPX3wTelLI[/youtube]

Please, advise what shall I do? This forum is the only way to fix my car after 3 garages failed
Regarding Vauxhall dealer: I don't want to go to them, as they will charge more than the car costs. And may possibly tell me same story that "computer did not find any faults".

Post by **johnny** » Fri Jul 31, 2015 10:12 pm

If it ran better after cleaning the egr I'd try blanking the egr off and see if it cures it

liopik · Post by **liopik** » Fri Jul 31, 2015 10:46 pm

johnny wrote:If it ran better after cleaning the egr I'd try blanking the egr off and see if it cures it

Thank you for reply. I've ordered blanking steel from ebay and will do that. Will let you know how it goes.

liopik · Post by **liopik** » Tue Aug 04, 2015 12:08 am

johnny wrote:If it ran better after cleaning the egr I'd try blanking the egr off and see if it cures it

I blanked the EGR off. And no more EML light, but the engine still won't start sometimes when its hot. What else can I do now? Can it be injector problems? Or coil pack problems? What would you advise?
Thanks.

Post by **johnny** » Tue Aug 04, 2015 2:24 am

I'd suggest coolant temp sensor but since you changed it recently the only other thing that cause hot starting problems is the crankshaft sensor so it'd be worth changing, there's no way to test the sensor unfortunately

liopik · Post by **liopik** » Tue Aug 04, 2015 6:27 am

johnny wrote:I'd suggest coolant temp sensor but since you changed it recently the only other thing that cause hot starting problems is the crankshaft sensor so it'd be worth changing, there's no way to test the sensor unfortunately

Is camshaft sensor the same thing as crankshaft sensor? If yes, then it was replaced recently. No difference.

Post by **johnny** » Tue Aug 04, 2015 11:35 am

Nope two different sensor's

liopik · Post by **liopik** » Tue Aug 04, 2015 4:34 pm

johnny wrote:Nope two different sensor's

Will I be able to do that myself? I'm fed up to pay to useless mechanics who can not find a fault unless computer finds it fir them.....aaarrrggghhh

Thank you. I will buy one from ebay and come with updates.

Post by **johnny** » Tue Aug 04, 2015 4:43 pm

Yeah but it's awkward it's at the back and near the bottom of the engine so easiest way to access it is underneath

liopik · Post by **liopik** » Fri Aug 07, 2015 3:54 pm

johnny wrote:Yeah but it's awkward it's at the back and near the bottom of the engine so easiest way to access it is underneath

went to a garage to change the crankshaft sensor. And now I don't see any difference. EML light still on and off, car poorely starts when its hot. Its basically shakes when I start it, and revs slowly go from 0 all the way to 2-2.5k. And now I noticed that when the engine eventually starts from hot, there is a smell of petrol, even inside the car.
I'm fed up, don't know what to do

Deedee91 · Post by **Deedee91** » Tue Aug 11, 2015 9:12 pm

What mileage is on it? Might be time to call it quits and fit a c14se

liopik · Post by **liopik** » Tue Aug 11, 2015 9:23 pm

Deedee91 wrote:What mileage is on it? Might be time to call it quits and fit a c14se

its 71k miles. 1998. Its easier to buy another car rather than tying to fix this one. I'm thinking to replace my coil pack, but it the original one costs 150. The car itself doesn't cost that much ))).

Deedee91 · Post by **Deedee91** » Tue Aug 11, 2015 9:25 pm

That's why I said bang a new engine in. There's a few 8v 1.4s and the wiring is the same if I remember correctly.

The head gasket went in my 1l just threw a new engine in. They're not a complicated car took a couple of hours across three evenings

Post by **johnny** » Tue Aug 11, 2015 9:40 pm

I don't have enough experience with these engines to be any more help sorry, there a rare sight in a b

andy w · Post by **andy w** » Tue Aug 11, 2015 10:04 pm

Have you tried cleaning the throttle housing at all as it could be a possible problem

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EML light come on and off, car is jerking, sometimes does no

EML light come on and off, car is jerking, sometimes does no

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe

Re: EML light come on and off, car is jerking, sometimes doe