EVERYONE with a V6 please Read (Page 16/39)
JCorn JUL 21, 01:42 AM
I did call him after I fixed it. I asked him if he was SURE there was nothing wrong with the car. He said "Worked fine before I sold it to you". I said thats funny the forum post I found with your name on it says different. He started studdering around about how he had it fixed blah blah blah. I told him how I fixed it and thanked him for the awesome running car.LOL
FLASHY SEP 26, 06:43 PM
BUMP since I saw this for the first time and hope others benefit as well. Can't wait to try it out. Thanks $Rich$!!
$Rich$ SEP 26, 07:23 PM
WOW good to see this back up again
even if you dont have any isle or problems at all, this simple mod cant hurt
and might be well worth your 10 min to put one on
KA SEP 26, 11:01 PM
Here's a "techie" explanation to why this works.

The engine sensors are grounded through the block and then to the frame then to the battery. The computer has it's own ground return. When the voltage of the sensors is measured by the computer, it is relative to the "ground" AT THE COMPUTER. Now if you have a minor 10 ohms of resistance from the computer's ground point to the sensors, and the computer and other electronics ar carying 3 amps through this resistance, the sensor's out put will apear to be the intended output plus the voltage dropped across the bad ground! this can easily double some signal values.

I have an INTENSE background in developing IR sensors measuring voltages to .000001 volts resolution. Please believe me that "ground" is a relative term! the more straps you can add is usually better IF they all return to a single point. Adding straps in a leap-frogging fashion can actually cause ground loops which cause the effect initially mentioned.

So, YES, Add grounding straps if you can! but do it smart and single point those straps!

$Rich$ SEP 26, 11:05 PM
yes, it is always a good idea to run multiple grounds to a single grounding point if possible
i would also like to add that my windows and headlights go up faster now that i have added an Optima Yellow top... what an amazing battery not cheep, but verry nice

[This message has been edited by $Rich$ (edited 09-26-2005).]

stalen88GT SEP 26, 11:15 PM
Well I grounded my sad little bomb and apparently I had a good ground already - no noticealbe change.

galen

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Make it FAST or don't make it :)

LITTLE RED BOMB..............Someday it will be mine..The Teacher
www.velocityaircraft.com

Pyrthian OCT 04, 03:48 PM
* bumb *

seems we got a few few newbs who should read this thread.

good power is VERY important for smooth idle

also, an addition: last weekend I re-did the 4 fuseable links under the C500 connector. this is main power distribution in the car. my headlights are brighter, power windows faster, and car seems just a little more happy.

good clean power is a must for a ECM controlled car. many sensor outputs will fluctuate with power fluctuations, so the ECM wont get good readings, and make correct adjustments. if your idle slowly goes up & down 200-400 rpm, this may be whats casuing it - not getting enough/good power at idle, so sensors read a little off, ECM adjust idle up, power goes up, sensors read right, ECM adjusts again, idle goes back to normal, power goes down, sensors dont read right, etc etc.

loveliesbleeding OCT 18, 12:44 AM
After following this thread for a while I had at it today on my 1985 4 cyl automatic. The car always ran pretty well but I had a few problems. The engine would surge violently whenever I would turn on the heat, defrost, etc. The dash bulbs were also dim. I cleaned the existing grounds then added another 4 guage ground from the neg battery terminal to the engine block. The surge is gone and the engine purs like a 4 cyl kitten. The dash bulbs are brighter also. This mod works and at less than 5 bucks and a half hour labor everyone should do it. I will do my 86 GT tommorrow. A big thanks to Saint $RICH$

Kevin

Gokart Mozart OCT 21, 06:26 AM

quote
Originally posted by $Rich$:

yes, it is always a good idea to run multiple grounds to a single grounding point if possible
i would also like to add that my windows and headlights go up faster now that i have added an Optima Yellow top... what an amazing battery not cheep, but verry nice


I've been wondering about the Optima batteries. Is the yellow one best for our cars?

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JaxDomino OCT 31, 09:46 PM
Wow!!!!

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'87 Fiero GT Fastback Auto.