Ground Wiring Kit Questions ??
#1
Senior Member
SL Member
Team ScioNRG
Thread Starter
Join Date: Oct 2004
Location: Danbury, CT
Posts: 555
Ground Wiring Kit Questions ??
Hey just wondering if the grounding wire kits they sell are worth it....They say that they ground key points to improve a bunch of ignition and shifting characteristics? Can anyone tell me a little more... ? and also can u recommened a good brand that sells a good kit
#2
As far as I know. Grounding the TB increases throttle response. So better shifts, less pedal lag, etc..
I don't really know what kits are good though. I'm gonna pull a DIY for mine untill I get a bigger one.
I don't really know what kits are good though. I'm gonna pull a DIY for mine untill I get a bigger one.
#3
The tC is Drive-By-Wire (sensor on gas pedal controls servo on throttle body), so a ground kit may be beneficial. I did a ground wire kit on cad455's tC when he was in town last week. I grounded from the passenger side strut tower, to each coil pack bolts (4), to the head, to the battery, then one of the bolts that was holding the relay box in place (I think...I can't remember). I don't know the gains, but it only set him back him 7 bucks...I had cad455 buy 6' of 8 gauge wire, 16 ring connectors (only used 14), and heatshrink.
#5
Originally Posted by wOoOzZy
Good to know Mikochu. Did you notice any better response? I don't think that you get any power gains by grounding, I think it's just response.
#6
These kits are crocks of crap. Your throttle body is made of metal. It's bolted to your engine. Your entire engine is made of metal. Your engine is bolted to your car. You're not going to get any kind of responsiveness out of putting a ground wire on your car. Toyota is one of the best car makers in the world and as such they employ some of the best electrical engineers in the world. I'm sure if doing something as simple as adding a ground wire would improve anything even in the least bit, they would have spent the extra $2 to do so.
These kids are no more beneficial than those jenk intake sensor mods out there. The only thing these kits do well is get your money.
These kids are no more beneficial than those jenk intake sensor mods out there. The only thing these kits do well is get your money.
#8
Originally Posted by i64X
These kits are crocks of crap. Your throttle body is made of metal. It's bolted to your engine. Your entire engine is made of metal. Your engine is bolted to your car. You're not going to get any kind of responsiveness out of putting a ground wire on your car. Toyota is one of the best car makers in the world and as such they employ some of the best electrical engineers in the world. I'm sure if doing something as simple as adding a ground wire would improve anything even in the least bit, they would have spent the extra $2 to do so.
These kids are no more beneficial than those jenk intake sensor mods out there. The only thing these kits do well is get your money.
These kids are no more beneficial than those jenk intake sensor mods out there. The only thing these kits do well is get your money.
#9
Well I know of many people who have grounded their TB and felt better throttle response. It could be in all of their heads but I think it's worth the few bucks to at least try it.
And I never suggested buying a kit. I think it's a waste to buy them when you can do it yourself for less.
And I never suggested buying a kit. I think it's a waste to buy them when you can do it yourself for less.
#10
What would grounding the throttle body do? If you look at EWD (electrical wiring diagram) you will see that all sensors that input to the ECM have their own seperate ground wire (white w/ black stripe). The engine grounds to the battery through the transmission case where the neg. battery cable is bolted. There are ground wires to the frame on both sides of the engine. Grounded reel good from the factory!
#11
Originally Posted by wOoOzZy
Well I know of many people who have grounded their TB and felt better throttle response. It could be in all of their heads but I think it's worth the few bucks to at least try it.
And I never suggested buying a kit. I think it's a waste to buy them when you can do it yourself for less.
And I never suggested buying a kit. I think it's a waste to buy them when you can do it yourself for less.
#12
Originally Posted by erc
The thing is, it's hard to believe if you can't meaure it. "Feeling better response" could very well be psychological... like when people "feel better response" after they have a fart can welded on.
#13
#14
Originally Posted by i64X
These kits are crocks of crap. Your throttle body is made of metal. It's bolted to your engine. Your entire engine is made of metal. Your engine is bolted to your car. You're not going to get any kind of responsiveness out of putting a ground wire on your car. Toyota is one of the best car makers in the world and as such they employ some of the best electrical engineers in the world. I'm sure if doing something as simple as adding a ground wire would improve anything even in the least bit, they would have spent the extra $2 to do so.
These kids are no more beneficial than those jenk intake sensor mods out there. The only thing these kits do well is get your money.
These kids are no more beneficial than those jenk intake sensor mods out there. The only thing these kits do well is get your money.
In new Toyota's cars ( 2001 and up ), they do a good job in grounding the car and they puts more grounding point in the engine area, so you will see less effect using additional ground wires. Anyway, puting additional ground wires is helpful but you won't see much improve for new cars because enough groundwires are installed.
#16
Anyone that says the ground wire setup is of little or no value has never installed one on the xA. I have a ground wire kit I made that make a nice difference in idle, shifting, response, etc...
I read tons of Toyota ist web pages (love babelfish). They have already worked out the minor issuesand have developed the best solutions. From the web pages it seems that 13 point ground wire setup with an extra 6 points under the chassis is teh way to go.
If you want the complete system setup, send me a PM. If you think it is a load of pooh, then have a nice day.
I read tons of Toyota ist web pages (love babelfish). They have already worked out the minor issuesand have developed the best solutions. From the web pages it seems that 13 point ground wire setup with an extra 6 points under the chassis is teh way to go.
If you want the complete system setup, send me a PM. If you think it is a load of pooh, then have a nice day.
#19
I installed a kit on cad455's car a couple of weeks ago. The points were.... from the Passenger strut tower > each coil pack bolt > head bolt (corner) > negative terminal on battery > to a relay box bolt. We used 6' of 8gauge wire, heatshrink, and 14 ring connectors. We didn't take any pics... :?
Use this tutorial...disregard the lengths and ground points... IMPROVISE!
https://www.scionlife.com/forums/viewtopic.php?t=29261
Use this tutorial...disregard the lengths and ground points... IMPROVISE!
https://www.scionlife.com/forums/viewtopic.php?t=29261
Thread
Thread Starter
Forum
Replies
Last Post
SkillFreeJake
Scion tC 2G Aero & Exterior
17
07-27-2015 12:34 AM
my06tc
PPC: Engine / Drivetrain
10
06-25-2015 12:18 AM
randode
Scion xA/xB 1st-Gen ICE & Interior
44
06-29-2004 04:19 PM