I wanted to see what type of interest there is for a NSX 1st GEN ABS Modulator Plug N play harness used to energize the ABS system Solenoids, I created this harness to save time and reduce hassle over using jumper wires. Good for 1991 to 1999 ABS systems. Most of you know these Solenoids can be a problem and lead to the pump running frequently, fluid foaming, over flowing from the reservoir etc... My ABS pump had been running more often the last few months so I got this harness together as well as some other goodies, preparing for the worst. When you start to hear the pump running more frequently, its most likely due to the pressurized fluid bleeding past a solenoid, this can be seen at the bottom of the reservoir strainer at the fluid return, most of the time the return fluid will be aerated with tiny bubbles (most likely nitrogen). This harness will allow you to energize the solenoids from time to time, hopefully minimizing problems down the road. The smaller 2 lead push button harness will allow you to run the pump. Don't run the pump for more than 30 to 40 seconds as you don't want to over pressurize the system. When you are done, partial pressurize the system for 30 to 40 seconds, then take the NSX for a ride and let the system finish pressurizing the fluid. A great alternative to Acura's ALB checker that the dealers used to run the pump and energize solenoids. When using this harness you don't want to run the pump if the fluid is aerated after energizing a solenoid. The fluid needs to be removed and replaced with clean fluid, or it needs to rest so the air bubbles can surface. Energize each Solenoid one at a time or in sets till clean UN-aerated fluid is seen coming from the return. ( this may be impossible without the T bleeder, but I cant confirm that since I have one) $114.00 would get you just the main harness with the rotary switch used to choose each solenoid one at a time, and it has a remote push button switch to energize it. The 4 OEM connectors plug into the ABS modulator harness, fused (10 amp) positive cable, High-temp PVC harness tubing, and good quality battery clips. The rotary switch is a blower fan speed switch for an older VW. It's a 5 position switch with 1 off and 4 on positions, one for each solenoid. A little crude but works great and had the termination needed to make this work cleanly, and it has a nice PVC cover that fits over its base nicely. An additional $18.00 (my cost) get you a second remote push button used to run the pump (remove the pump motor relay and insert the male spade terminals in the pump motor circuit.) for pressurizing the system. I could have used something cheaper but choose form and function over cost with the components I used. You can also use a piece of wire or needle-nose pliers to jump the pump terminals, I'm not a big fan of the method, but its effective and I have done it before. These are pretty much going to be made to order, so I don't plan to keep a lot of parts of hand, enough to do maybe 5 sets at a time. If you happen to need an O-ring kit to rebuild a modulator, talk to Warren Woodcox (known as WARRENW here on Prime) he has a great O-ring kit that's really well put together with a great instruction sheet. His thread is here http://www.nsxprime.com/forum/showthread.php/162710-ABS-ALB-modulator-rebuild-write-up I have a brief YouTube vid on how to connect the main harness here (vids and pics are not my thing.) If you check out one of the other vids on that you tube channel you will see how I developed an internal modulator leak this past week, and the fluid bleeds back into the reservoir as the system pressurizes. Input is always appreciated. https://youtu.be/6q29oPWEI2k
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