Talk Morgan Forums Morgan Sports Cars Morgan Three Wheeler & Super 3 Ugh...check engine light is on

The fuel in there now os over a year old, Exxon 91 octane alcohol free with Stabil in it.

even with Stabil, one year old fuel is probably your problem.

I would second this thought. Old fuel is not good anywhere and it leads to varnishing the parts in which it comes into contact.

If you are going to put the machine to bed for the winter it would be wise to do so with an empty a tank as possible. Which brings to mind the question what sort of procedure is required to restart the system once it has been starved of fuel?

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If you are going to put the machine to bed for the winter it would be wise to do so with an empty a tank as possible. Which brings to mind the question what sort of procedure is required to restart the system once it has been starved of fuel?

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There is a opinion that its better to have a full tank when laid up to avoid condensation in the tank. Maybe less of a consideration in an alloy tank

TimG, You are right about condensation in the tank and it is why I keep my tanks topped off as much as possible. It is the water that kills the spark since it is non combustible.

On all my other internal combustion engines I run them dry to shut them off for a season, like lawnmower, chainsaw, etc.

I know it can be a bit of debate.... full or empty.... I fall on the full side (with stabil). Having said that a year is a LONG time for gas to sit. I throw that into my Deere mower, it seems to run on anything.

Interesting read from BP

https://www.bp.com/content/dam/bp-country/en_au/media/fuel-news/petrol-life-vehicle-tanks.pdf

https://www.bp.com/content/dam/bp-c...-fuel/Opal-factsheet-storagehandling.pdf

Very interesting indeed! Thanks for the Links.

It basically says just drive your cars :-) Sitting gathering dust is not a good thing. I have had many old vehicles and the most problematic area was fuel, whether in the carbs or injectors or the filters or the tanks.

Got my car back after Centa roller replacement and while the engine was out a new thrust bearing. It's been over 4 months.

I've got the engine light coming on with codes P0170 and P0173 but I'm hoping its the 5 month old fuel still in the tank (it was full when the rollers died)

If the light doesn't clear after a few miles I would suggest you connect Protune 2 and clear the fault codes and adaptive maps. That usually re-sets it all, those codes relate to the front and rear cylinder adaptive maps maxed out.