Help - Surging Enging Up Steep Hills

[soulfood187]

Hi all,

I have a S2 C34. The car has begun to surge when being driven up a steep hill, like the street into my home. It feels like the cars rev swing up then down then up and down again. On the flat road it is running fine, no weird noises, smoke etc. The car has a few mods but has been running fine up until this afternoon. As it is my wifes car and I have a small one in the back, I hope it isn't anything too major!

Any thoughts? Fuel pump, Atessa?

Thanks

Rob

[GTRsean]

Surging can be due to lack of fuel, or less likely too much.

My car surged up slight inclines etc due to shit light throttle tune, it was running too lean.

So yeah, check fuel pressure from pump, fuel reg, and or airflow meter.

Rear tyres worn more than the fronts can also cause the attessa to try and feed power to front wheels. If there is a diameter different it can also cause that surging feeling.

[soulfood187]

So it ended up being the Atessa system. Cheap fix!

[GTRsean]

Nice work!