Hey, I installed grounding wires on my car a while back, and ever since, my car idles usually at 3-400 compared to i believe 800? well i read something about grounding wires making your car's idle a bit lower, but i was wondering if this was actually so. If this is not, is there some way i can reset something to make my idle normal. please help. thanks

 

If you want, you can take it to the dealer, and have him take a look at it, and if necessary - tune it.

2004 G35C 6MT DG/Gr/Prem/NAV/A.Pedals/C.Corners/C.Bra/PIAA/Grnd.Kit [img]/w3timages/icons/cool.gif[/img]

 

I wonder if an ECU reset would fix this....

2004 G35C 6MT, Black/Willow, Prem, Aero, Nav, on a truck somewhere in TX, INBOUND!

 

It's more like 500 - there is no way to gauge between 0-500. IF the idle is lower as it is in mine and also not sputtering it wont matter. It should be lower and smoother...some also have speculated that it's just a more accurate reading on the guage as the analog insturments are actually "wired".

Dont worry - hundreds of folks have said that about the idle dropping. No tune ups until at least 36k miles...

 

Remember, that first mark on you tach is 500 RPM. If your car is idling smoothly between that and 1000 RPM, it doesn't need to be fixed.

<font color=green>GroundingGear™ Equipped </font color=green>

 

Gordgee,

Why would grounding the car lower the idle RPM of the engine?

I personally don't think you are just getting a more accurate reading of the engine RPM... I am not saying that I know this for sure, but as an electrical engineer it just doesn't make any sense...

Here's to alcohol : The cause of ... and solution to all of life's problems.

- Homer Simpson

 

This may have already been covered in the forum, but are the wires worth it and are they easy to install?

2004 G35C 6MT, Black/Willow, Prem, Aero, Nav, on a truck somewhere in TX, INBOUND!

"Some mornings it just doesn't seem worth it to gnaw through the leather straps." -- Emo Phillips

 

For a quick read:

Hyper-Ground FAQ Thread

I've been asked to collect and post some of the feedback on the FAQ from actual users, so it would be easier rather than read though the entire >2 hour thread. I'm currently compiling.

If you're otherwise bored and can't sleep:

H-G Monster Thread

<font color=green>GroundingGear™ Equipped </font color=green>

 

"Why would grounding the car lower the idle RPM of the engine?"

The feedback that I've gotten is that it can lower the idle on some cars, but usually not to a significant degree. Usually the ECU tends to raise the idle to ensure an efficient, smooth idle, such as on initial startup on a cold engine. When it reads that the engine is running smoothly (no stumbling, etc.), it lowers the RPM if it can maintain the optimal parameters for the idle conditions present. Since the H-G system optimizes the overall efficiency of the running engine (which may explain the reported smoothness throughout the rev band), it would follow that the engine is able to idle at a slightly lower RPM.

Does this make sense to anyone else?

<font color=green>GroundingGear™ Equipped </font color=green>

 

Hi Gordgee,

I have read through the post that you indicated several times, and I read your explanation... I guess that sounds reasonable if the ECU is continuously monitoring the "engine smoothness" (whatever physical or electrical measurement that is) and then has a control system that automatically adjusts the idle RPM for gasoline efficiency.. This is getting a little deep into it, but I really wish I knew what was really going on...

BTW, I am also going to get a grounding kit in the near future (month or so)...

Here's to alcohol : The cause of ... and solution to all of life's problems.

- Homer Simpson

 

I've passed the theories past several EEs as well as several auto electrical techs. You have no idea how much time I spent, especially in the early days when I was a skeptic as well to get some answers. Lots of 'ah-ha!' moments! I think some of the nitty gritty re H-G theory could be someone's thesis one day. I'm actually going to cut and paste this Q&A on the FAQ for others to ponder as well so this doesn't get lost.

<font color=green>GroundingGear™ Equipped </font color=green>

 

sounds good... I would love to hear it.

Here's to alcohol : The cause of ... and solution to all of life's problems.

- Homer Simpson