Power loss puzzle

No, no lights came on and i didnt see the rev counter jump, and i believe they have checked the exhaust

As the others have said, the usual mysterious power loss & lumpy engine without the EML, but it gets better when you turn it off is crank sensor.

A constantly increasing power loss (no EML) is a blocked catalyst, ocasional loss, with a rattling sound, is broken catalyst, and the bits are moving around, blocking it under load.

Continual increase in fuel consumption, possible lumpy running (no EML) is front exhaust sensor out of spec, but not failed yet.

Huge increase in fuel consumption is likely a leak in the return pipe, at the bend against the chassis under the drivers feet.


Rough running when hot (no EML) can be faulty plug, plug hole full of oil, lead breaking down, faulty coil. (The ECU senses a spark problem, but doesn't notice a HT fault somehow...)

Would have thought that a garage would check these though...

They have already checked the camshaft sensor, no faults on computer. BUT they are going to swap it as it comes back as the most logical answer to the problem. They have checked everything and gave it a good service so...

Thank you all for your help

Pam x

None of the things in my list will show on the computer.
You would think they ought to, but in my experience, and that of others on the forum, they don't.

If a sensor is out of spec, but still reports that "everything is awesome" when it isn't, the computer will never know.

Thats the theory they are working on lol. Thanks

I had a similar problem. I changed the spark plugs and hasn't done it again.


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