Power Plateaux

LSPIII · 8 Nov 2007 at 15:33

Good afternoon oh knowledgeable ones, and... well... not so knowledgeable ones!

I have a quick question regarding the power delivery in my car. I drive a 1998 1.8 Astra and I noticed last night on my drive home that the power delivery doesn't seem as constant as it used to. It still pulls very well up until about 5k revs, but then it seems to flatten out slightly until 5.5k when it feels like it pulls again.

I'm a complete noob with cars, but I was wondering whether this should be anything to worry about too much? It's not a big loss, just a slight one, but I thought I could ask around and guage if it's something I should have looked at.

needmorespeed · 8 Nov 2007 at 15:54

when was it last serviced and how many miles have you done since the last service

LSPIII · 8 Nov 2007 at 15:56

needmorespeed said:
when was it last serviced and how many miles have you done since the last service

It was last serviced in January this year and I have done about 8000 miles since then.

needmorespeed · 8 Nov 2007 at 15:58

it could be dirty air/fuel filter spark plugs/leads need changing

LSPIII · 8 Nov 2007 at 16:10

needmorespeed said:
it could be dirty air/fuel filter spark plugs/leads need changing

Could the 02 sensor be it? I've had the Engine Management light pop on a couple of times and that was apparantly due to the 02 sensor. I doubt it's the sparks or leads, as I had both of those changed and the coil pack in January when I bought the car.

needmorespeed · 8 Nov 2007 at 16:12

could be the o2 sensor as that controls the fueling

LSPIII · 8 Nov 2007 at 16:14

Thanks for the quick responses. I'll have it looked at next time I take it to the garage. I'm guessing I don't need to be too worried about it?