Hey, all...
So - for the longest time my car would hesitate slightly as I accelerated between 3000 and 4000 rpm. Just felt a bit shaky in that range, regardless of gear.
I read on the NASIOC forums about the 'Grounding Mod', which many people seem to have tried, and decided to give it a go.
I got some heavy-gauge speaker wire, and ran two leads from the negative battery terminal: one went to the grounding bolt on the intake manifold (passenger side) and the other went to one of the bolts on top of the passenger side strut.
When I started the car, it felt quieter, seemed smoother, even at idle.
I went for a spin and wound it up, and though I felt _slight_ hesitation right at 3000rpm, the rest of the power band was consistent.
My dealer said that the reason for the hesitation was that I was running 91 gas and that I should be running 94. I wonder if I should tell the dealer that they REALLLY need to pay more attention to these solutions that the driver populace comes up with. It makes them seem like they don't even know the limitations/issues with their product.
Anyhoo. It was an easy change, took me an hour and cost about 5 bucks. The speaker wire I had laying around anyway, so I only had to buy the ring clips.
Anyone who finds acceleration choppy between 3000 and 4000, I expect this little fix might well help!!
Oh - I'd LOVE to understand how something like this could have such pronounced effects. If anyone knows of any discussions on the topic, I'd love to hear about them.
Cheers,
BD