XR8 Surging

xr8AU2 · 28-10-2007, 02:40 PM

HI im after a little help as i have a problem with my ute,
it feels as though its surging whilst driving at freeway speeds,
you can feel it back off then accelerate again, not drastically but it can be felt.
has anyone had these problems and maybe able to give me an answer.
cheers

WoodysXR6 · 28-10-2007, 04:36 PM

I had a similar problem and it ended up being 1 of the spark leads not being connected proply.
The Mechanics 1st replaced the fuel pressure regulator though under warranty, and still didnt fix it.
hope that helps.

crakrz · 28-10-2007, 05:45 PM

I had a similar problem at cruising speeds, i got the "lean cruise" air fuel ratios richened up slightly while getting the edit done and no more problem. I'm not saying that this will be the same for you as there are many things that can probably cause this symptom. -craig