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Description
Unterminated Universal Harness, Includes Bosch Oxygen SensorHP EFI ECU Harness Kits Universal V8 Multi Point Fuel Injection, Includes NTK Oxygen Sensor Overview Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP
HP EFI ECU Harness KitsUniversal V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor
Overview
Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost or water meth.
ECU is certified to ISO 8846, SAE J1171 United States Coast Guard Requirements for Ignition Protection Fire Resistance. Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I/Os than are available. If more I/Os are required, users should choose the Dominator VMS.
Software and firmware updates can be downloaded here for free.
Features:
NEW V2 SOFTWARE FEATURES - Quick Start??? ignition and fueling strategy for LS x Engines
- Data Logger. Scalable axes, Smoothing, Multiple graph view ability, Pre-defined notes fields and many more
- Strip Chart Real-Time Data Viewer
- Integrated Boost Control - Boost vs Time, Boost vs Gear (Time or RPM), Boost vs RPM, Boost vs Speed, Launch control. Boost launch builder, Over-boost safeties, Boost scramble
- Traction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)
- Quick Start??? fueling for all engines
- Option for VE based fueling strategy
- Fuel Map and Learn Function Smoothing
- Configurable User Password Protection
- Fully Configurable lap top Gauge Panel
FEATURES - Optional 5.7??? full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel
- Eight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies
- Eight channel Distributorless Ignition (DIS)outputs capable of directly driving Smart??? ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module
- Plug and Play control of factory GM 24x and 58x LSx engines
- Integrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors
- Internal data-logging standard with a huge 2GB of memory
- 4 Stage progressive nitrous control
- Turbo boost control
- Integrated water/methanol injection control
- Self-tuning fuel table strategy greatly simplifies tuning process
- Individual cylinder fuel and spark control allows you to unlock your engine??????s potential
- Works with 4, 6, 8 cylinder engines
- Unique lb/hr based fueling strategy greatly simplifies and commonizes tuning
- Advanced idle, closed loop, and enrichment strategies allow for very stable operation
- ECU is fully potted and can be mounted in the engine compartment or interior
- Sealed automotive and marine grade connectors
- Allows for use of common OEM sensors as well as customer sensor calibration input
- Ignition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process. Custom settings can be configured to allow many other applications
- 1-5 Bar MAP sensor capability
- Two channel knock control sensor Inputs for both one or two wire knock sensors
- Dedicated fuel and oil pressure inputs
- Controls both stepper and PWM Idle Air Control (IAC) motors
- Speed density, Alpha-N, or combination fueling strategies
- 4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use
- 4 Stage nitrous oxide control
- Fully featured nitrous control eliminates the need for a separate nitrous controller device
- Can be configured Wet??? or Dry??? with closed loop feedback
- Progressive control based on time, RPM, or boost, requires part # 554-111
- Lean or rich safety cutoff
- Full timing retard/control configurability per stage based on RPM or time
- Integrated Water/Methanol injection control
- Uses Holley Water/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water/Meth flow as a percentage of fuel injector flow for Water/Meth tuning precision unmatched in the industry
Details:
- Ignition Type: Coil - (No Timing Control)
- Ignition Type: Ford TFI
- Ignition Type: GM HEI Small Cap
- Ignition Type: Holley Dual Sync Distributor
- Injector Connector: Jetronic / Minitimer (Bosch)
Links
EFI selection chart
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Pet teething treats
Flavor Name: Chicken - Regular, Size: 3.6 Ounce (Pack of 1)
I love these!!! They are great for puppies that are constantly biting on everything. I have used it for all my dogs and never have had a dog that bites cables or shoes. And they are sturdy which I like.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Puppies love them
Flavor Name: Chicken - Regular, Size: 6 Count (Pack of 1)
Puppies love these rings. Give it to them in morning when I leave to keep them occupied for a moment while I step out the house for work so they are distracted instead of whining. Hardness is good enough for my mini bernedoodle but Goldendoodle chews it up quickly. I’m glad these are edible and dog friendly. Just as pictured l.
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Reviewed in the United States on May 19, 2026
★★★★★ 3
Only lasted 15 minutes
Flavor Name: Chicken - Regular, Size: 6 Count (Pack of 1)
My miniature 9 month puppy finished it in 15 minutes. Seems like she likes it, but this doesn't lasted.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Good for puppies teeth.
Flavor Name: Chicken - Regular, Size: 6 Count (Pack of 1)
Our dog loved these when he was a puppy.
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Reviewed in the United States on June 5, 2026
★★★★★ 5
Tough Little Skwerls
Color: Squirrels (3-pack)
I bought these at the same time as I bought the Kyjen Hide-A-Squirel toy as I have 3 dogs and I figured at least one of the squirrels would get lost pretty quick leaving the dogs to squabble over the other two reamining squirrels. Ironically, all three of these squirrels are still present and accounted for though they are showing a bit of wear at this point. They are also covered with dog spit but as they are dog toys that is to be expected.
I have 2 medium sized dogs and one huge dog. Two of the dogs play with these toys EVERY DAY and after almost 3 months they squirrels are just now starting to show noticeable wear. My dogs love to dissect their toys and remove the squeaker. If I am on the ball I find the squeaker and tie it up in a couple of pairs of old socks and return it to the dogs. This solves two problems: 1. The dogs are unable to injest the squeker and 2. I no longer feel obligated to try to find the mates to those socks. The dogs also love the squeaky sock toys and wiill still play with the squeakerless squirrel toy carcasses so this is truly a win-win situation. At this point, 2 of the 6 total squirrels I ordered are sans squeaker. Three out of the six are showing any real wear. One out of the six total looks like new, probably because it has been under the dresser for the past two months. So, these squirrels are smart as well, or at least one out of six is of above average intelligence. Well played, Kyjen, well played.
These toys and the Kyjen Hide-A-Squirrel toy were all a big hit with my dogs, even with the dog that could care less about them because when I throw a squirrel for the other dogs to fetch, the dog who doesn't play with the toys chases the dogs that are running after the toy and screws with the slower dog by latching onto one of his hind legs and making him fall down. So, these toys entertain the dogs that actually play with them, the dog that couldn't care less about them, and me. That's getting the most possible bang for your buck right there!
This is the first time I bought any of Kyjen's products and I would absolutely buy Kyjen products again as well as reccomend them to my dog-owning friends. These are awesome toys. Yes, the squirrels are on the small side but I was expecting that as I actually took the time to read the product description before I ordered them. My dogs do not care that the squirrels are kind of small and I don't believe that the size of the toys has any impact on their durability or function.
These are awesome dog toys. If you don't get them for your dogs you are not a fun person and it's highly likely that your dog pees on you as you sleep. I sure would. I mean I would if I were your dogs.
Buy the damn toys already!
*HERE'S MY REVIEW OF THE KYJEN HIDE-A-SQUIRREL TOY*
This review is from: Kyjen PP01056 Hide-A-Squirrel Pet Toy, Large
I have 2 medium sized dogs and one giant dog and two of them love these toys. The other one likes to play with other dogs much more than she does dog toys so I'm not really surprised that she isn't that into them. The wierd dog and the giant dog LOVE these toys and play with them daily. They have taken both the squirrels and the "tree trunk" outside, played tug-of-war with them and even buried them and the toys are still looking pretty good after a couple of months of rough, frequent play. Two of the squirrels are now without their squeakers as the giant dog loves to dissect them and remove the squeakers. This isn't a problem, I actually expected he would have removed all of the squeakers by now and I bought three additional squirrels because I really expected these toys to wear out much more quickly. I'm pleasantly surprised at how well they are hanging in there. Of the six squirrels I ordered five are present and accounted for and the dogs play with all of them, even the ones giant dog has disemboweled.
Yes, the squirrels are on the small side. I was not surprised by this as I took the time to read the complete product description. I don't know how well other larger dogs would like these toys, my giant dog is touched in the head but very smart and he loves them despite the size.
I have never ordered Kyjen products before ordering this Hide-A-Squirrel toy and the replacement toys and I am thrilled that the toys are of such good qulaity and that my dogs are getting lots of "play" out of them. Even the one dog that doesn't like toys that much is entertained by them as she likes to chase the dogs that are playing with the toys and try to chew their legs off as they run. All my dogs are entertained and entertained dogs are dogs that are not running all over the neighborhood humping everything in sight or chewing holes in my socks.
I would absolutely order Kyjen products again and I would order from this seller again. My items arrived one day before they were due and were packed appropriately. I would also reccommend both Kyjen and this seller to other dog owners and have already told my sister about these toys and how awesome they are.
If I could give this product and this seller more than five stars I so would!
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Reviewed in the United States on April 25, 2013