Me civic is runnin pretty slow at the moment & i dunno why? It had a full service 2wks ago with the timing belt & pads changed but the service didn't cure it.
Its toppin out bout 80-85mph. this mornin on the motorway i was goin up a slight incline & it slowed right down to 60ish with foot to floor.
Up until about a month or so ago it would fly even in 5th.
Anyone got any ideas?An ecu problem maybe?

Throw some injector cleaner in the fuel mate, it might cure the problem and it can only do good.

Would that fix top end?

In the past injection cleaner has only ever fixed poor idling for me.

Maybe misfiring or something?

Check spark plugs etc

Plugs?

Fuel Pressure (Pump could be on its way)?

Is the air filter clean?

Fuel filter?

The injector cleaner will flush everything through cleaning the fuel filter, the plugs, cylinders, pistons, and anywhere else the fuel gets!

cool ok thanks guys i'll try have a look

When it gets to 80-85, is it sluggish, can you physically feel the engine struggling? And does the incline/hill thing happen everytime?

not struggling as such just won't go any faster!
yeah so far each time. put some cleaner in before so hopefully that'll make some difference.

I had this problem with my old corsa, It was the cam or the follower was chipped or somethin like that, wasnt releasin harmful fumes quick enough. Maybe scooby the car genius might be able to clear it up?

The oil filter had also callopsed so check that out. Check that out coz if its that you wanna catch it quick before it knackers your engine up!

The first things I would do if it happened to me again would be check oil filter, air filter and fuel pump.

Hi Matey, If you want to pop it into work i will road test it with you and see if we can get to the bottom of it ????

Could be several things causing your loss of power as already suggested, need to test drive the car to fully asses and not just guess.

cool ok scooby i'll give ya a ring early next week.
thanks mate