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Old 04-16-2010, 11:23 PM   #1 (permalink)
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Here's a little writeup to make a true plug and play resistor box for your teg.

Need:
OBD1 distributor side plug (4x2 pin rows) OR Ac subharness (front passenger by the radiator) plug from a teg
Prelude resistor pack
Soldering iron

First off, here's the Prelude OBD1 resistor box with plug: (plug from prelude DOES NOT plug right in a teg)


Here's the dead plug (with the dead plug removed:


And here's what we're wiring up:



So depin the prelude harness and your matching 8 pin oem plug (Sourced from OBD1 dizzy or AC sub harness)
I colored orange and white wires red to match the one red wire in the prelude box. Here's how I staggered the extra +12 wires before soldering:


Those joints were soldered! You MUST do this step, not optional! I then placed heat shrink over the whole bundle:


And repinned the harness plug:





And here's the final plug and play product:
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Old 04-16-2010, 11:35 PM   #2 (permalink)
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1) These are sneaky
2) Nice wiring job. Very clean.
3) Tots doing this...
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Old 04-17-2010, 12:00 AM   #3 (permalink)
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As always Casey, Good work! Your projects always come out so clean.
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Old 04-17-2010, 12:29 AM   #4 (permalink)
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Looks good casey I have high impedance injectors so i didn't need to do this myself. What kind of advantages do you see from the ball and seat injectors as opposed to the saturated?
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Old 04-17-2010, 02:44 AM   #5 (permalink)
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What is the exact purpose of this? Why would you need to add resistors to your fuel injectors? -Aaron
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Old 04-17-2010, 02:54 AM   #6 (permalink)
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When using low impedence injectors for higher hp builds, it is necessary to beef up the resistance of the injector circuit otherwise you will fry the injector drivers.
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Old 04-17-2010, 10:46 AM   #7 (permalink)
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Quote:
Originally Posted by luck4rmkc on Apr/16/10
Looks good casey I have high impedance injectors so i didn't need to do this myself. What kind of advantages do you see from the ball and seat injectors as opposed to the saturated?

$MoNEY$

I'm using Evo 8 injectors. They were $100 for 560cc and are modern OEM with a good spray pattern.
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Old 04-17-2010, 11:37 AM   #8 (permalink)
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Nice write up.
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Old 04-17-2010, 11:49 AM   #9 (permalink)
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Quote:
Originally Posted by MeltMan on Apr/17/10
Quote: luck4rmkc on Apr/16/10Looks good casey I have high impedance injectors so i didn't need to do this myself. What kind of advantages do you see from the ball and seat injectors as opposed to the saturated?


$MoNEY$

I'm using Evo 8 injectors. They were $100 for 560cc and are modern OEM with a good spray pattern.
ok I feel that... well my wallet feels that cuz it is emptyyyyyyy!!!!! I was thinking I remembered that the ball and seat style injectors were better in some way. Like they had a better spray pattern or were more accurate when tuning but i couldn't remember
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Old 04-17-2010, 08:50 PM   #10 (permalink)
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Here's where I put it. Dont know what that threaded hole was for but it works perfectly for the resistor box.



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Old 04-17-2010, 10:12 PM   #11 (permalink)
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Good job there Casey. Keeping it plug-n-play as always
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Old 04-19-2010, 03:12 PM   #12 (permalink)
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Dangit!!!! Now I have another weeked project!

Nice, as always Casey!
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Old 04-26-2010, 11:48 PM   #13 (permalink)
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will be doing this as well! i will post pics of it when its finished =)
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Old 07-31-2010, 12:57 AM   #14 (permalink)
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hey where did you get the pins and the the little rubber grommets for the pins?

thanks
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