Corsa lite b 1300 1999

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Masixole Eugene

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Hi there I need help. I have a corsa lite it misfires and use more petrol. It misfires randomly and the spark plugs doesn't last even a month. Please help
 
What happened before the misfire? Any work done on the car? Any engine light?

And what do you mean spark plugs don't even last a month, what happens to them?
 
If you say spark plugs don't last, what do you mean? If it is wet it could be to much petrol, check your temp sensor, it controls the fan and the injectors, if fan does not work the way it's supposed to then it could be the temp sensor.

Also you say it uses a lot of fuel, disconnect the vacuum hose on your fuel pressure regulator on the fuel line, if it has a heavy petrol smell then the regulator could be bad.

I remember my Opel Corsa b 2002 sport, it use to over fuel, and it would misfire, and my fan wasn't working the way it was supposed it, I bought a new temp sensor, thereafter the fan work and the over fueling stopped.
 
Kylet said:
If you say spark plugs don't last, what do you mean? If it is wet it could be to much petrol, check your temp sensor, it controls the fan and the injectors, if fan does not work the way it's supposed to then it could be the temp sensor.

Also you say it uses a lot of fuel, disconnect the vacuum hose on your fuel pressure regulator on the fuel line, if it has a heavy petrol smell then the regulator could be bad.

I remember my Opel Corsa b 2002 sport, it use to over fuel, and it would misfire, and my fan wasn't working the way it was supposed it, I bought a new temp sensor, thereafter the fan work and the over fueling stopped.
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That's what I don't understand, spark plugs are very robust piece of hardware, I am sure if I got my hands on those "last only a month" spark plugs and put them in my car they would fire away.
 
cr@zydude said:
Damaged plug leads?
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It could be that but I would bet it's a coil, 90% of the time the problem is always the coil when such symptoms are experienced in those cars.

It's very easy to diagnose if it fails completely but what it does often is to have an intermittent failure, that's where people get lost and start fiddling with computer boxes, injectors and all the things they are not supposed to fiddle with, in the process introducing more issues.
 
Hey everyone so I'm sitting with a simular issue but a bit different, so yesterday I dove my car 2005 Opel Corsa 1.6S in centurion area and the engine light came on and the car started to misfire, then the engine light will go off and on as I drive and now stays on, I replaced the spark plugs 3 weeks ago and was the issue for misfiring at that moment, I checked for air leaks and could not fi d a parched line, so another guy suggested to remove the terminals for about an hour, but the engine light is still on and still misfiring, just to add that I have broken off the air temperature wire my accident and did reconnect it, so not sure if that would have caused it, any ideas what the problem is?
 
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