LS2, LS3, LSA, LS9, Vortec 4.8, 5.3, 6.0, 6.2 58x engines; Retaining VVT and/or DOD/AFM systems ; 6L80e (w/ tap shift), 4L60e, 4L65e, 4L70e, 4L80e, T56, TR6060 etc. Startup guaranteed. (fig.7) Dan from DD Speed Shop is back with another DIY for budget builders, this time all about LS engine swaps on the cheap. Relay K1 is the low speed relay, and K6 is the high speed. Fan #1 will be the drivers side fan and fan #2 on the passenger side over the A/C condenser. If so, got to step #6. Unlike most LS swap parts on the market everything here was made to work together, so you'll have clean mounting of your engine and not a mix of unrelated parts. These electronic gauges and senders can be wired into your LS wiring harness. Also included is an easy-to-follow wiring diagram. You will need to add the female spade terminals into the fuse box for the relays K1, K6 and the fuses 3, 18, 19 and the wiring to the fan/temp sensor. Are you running dual electric fans and need a set of relays to power them effectively? Turn off the A/C. Use pliers and a thin pick or screwdriver, press on the white retaining tabs on each side of the blue-clear cover and pull it off. Living in San Diego for most of his life, Harrison was exposed to a variety of cars at an early age. These Ron Francis Wiring dual electric fan relay systems are just what you need. Locate the green wire. Fan #1 will be the drivers side fan and fan #2 on the passenger side over the A/C condenser. The output side of the temp switch then returns (one wire for single speed - two wires for dual speed) to the fusebox and goes to the fan relays. GM LS Engine Swap Wiring You Can Do at Home from our Chevy Tahoe harness for a L engine swap. PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. Cars nowadays come from the factory with a multitude of sensors, and those sensors work together with the car’s computer, which is referred to as the engine control unit (ECU). PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. See all 17 photos. The bits/wiring you will need to add are arrowed. If your project uses electric fans, begin with a PCM calibration from a vehicle that has electric fans. See all 17 photos. The center of this conversion is our engine mounts and crossmember kit. When electric fan installs don't perform as expected the problems are often traceable to under-wiring and/or poor splices and grounds. Use a test light or volt meter to find the wire that triggers the passenger side fan over the A/C condenser to come on high speed when the A/C is turned on. Be sure to secure the wires using tie straps.(fig.6). 9 _94_4.3_SS_ ... 1.6 roller rockers, Flex-a-Lite electric fan, Edelbrock headers, 2 1/2" Dual Flowmaster 40 series exhaust, dual high-flow cats, 3.43 limited slip rear, 15x8 & 15x9.5 billet rims, 95 Blazer front end w/cleared lenses... Save Share. These LS swap kits are for 1988-1998 GM 2wd and 4wd trucks and 1992-1999 SUVs. Take a look at the video above from YouTube user AGearhead4Life (aka Mark Burch). Flip the connector over and Remove the PCM. THANK YOU to all that stuck with us during this hectic time. The AC compressor connector must be wired to the chassis’ output AC signal wire. Lubricate the PCM pins and wires on the harness tagged BLUE 42 and GREEN 33 using vaseline or die electric grease. We wanted to see exactly how cheap we could swap an LS into an older full-size GM car for and what other items needed to be considered during the swap. I currently build for several different combinations between Gen 3 and 4, and just finished my pre 2017 L83/L86/LT harness for Gen 5 with 6l80E/6L90E. Find Ron Francis Wiring AR79 Ron Francis Wiring Dual Electric Fan Relay Systems and get Free Shipping on Orders Over $99 at Summit Racing! Cars nowadays come from the factory with a multitude of sensors, and those sensors work together with the car’s computer, which is referred to as the engine control unit (ECU). Created with Sketch. 17mm socket/wrench For this LS swap, we decided to ignore any new flashy parts and swapped an LS engine and transmission that were as budget-conscious as possible. Including, but not limited to LT1, LS1, LM7, LR4, LQ9, LQ4, 4.8, 5.3, 5.7, 6.0, 6.2, and 7.0 Engines. You must either solder them together and shrink wrap, or crip together using the supplied butt connectors and shrink wrap using the proper wire crimpers to crimp the leads. Burch continues with the crankshaft sensor (CS), which is another critical component necessary for the initial wiring, stating that the ECU will need to measure the rotation of the crankshaft. Your #1 Source for OEM Operated PCM Controled and Universal Electric Fan Harnesses. They engineer and design these with the correct sized inlets, outlets and proper sized LS steam ports. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. Total. We are currently up and running and shipping from our new location. Of most importance is the consideration of electric fan control. 1. Then connect switched power (usually from your ignition switch), to the blue wires on both relays (tab 86). There was a … Learn More | … *THESE ARE SPECIFICALLY ASSIGNED TO EACH FAN AND MUST BE INSTALLED ACCORDINGLY. His passion for anything that is fast, or has a V8, brought him to Power Automedia. 0 Comments. Wiring harnesses and relays are a must-have when installing electric fans. © 2017 Power Automedia. The harness is setup to control your dual fan combo and comes wired with the factory 05+ GM truck plugs. (fig.5) Electrical wiring in a vehicle can sometimes get pretty tough. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. Take your 7mm socket remove the blue PCM connector closest to the engine. Performance cooling products for the automotive market. Once you tap it, use your test light or volt meter to recheck and confirm proper operation (fig.4) Use pliers and a small flat head screwdriver, remove the grey harness retaining cover from the top of the blue PCM connector. Enjoy your new much more quiet, smoother running, and more efficient running vehicle. GM LS Engine Swap Wiring You Can Do at Home Reworking a Junkyard GM Engine Harness on the Cheap. FUEL SYSTEM For the fuel system when doing an LS swap, the most common approach is to use a C5 Corvette fuel pressure regulator along with an electric fuel pump that has adequate flow, such as the Walbro 255. LS Swap DIY Harness Rework Fuse Block kit for LS Standalone Harness with Fans . We also carry many other products to help you with your swap, including hard to find air conditioning parts! He has a lot of videos surrounding LS swaps and how-to’s. Options. Finally, run a fused constant power to both of the red wires … Flex-a-lite invented the Flex Fan and holds the patent for the first electric fan for the automotive aftermarket. 7mm socket/ratchet All rights reserved. Reply. Mounting an external in-line fuel pump is probably the easiest. We are currently up and running and shipping from our new location. The engine mounts bolt to your existing frame brackets. We hand build every harness to fit exactly what your project needs and they actually form fit on the engine to make your wiring look and perform perfectly. We hand build every harness to fit exactly what your project needs and they actually form fit on the engine to make your wiring look and perform perfectly. Trimming of the junction box must be done to get it to close. If not retrace your steps, If so go to step #5. The black cover should pull off by pulling outward on the cover, releasing from the two plastic tabs. These LS swap kits are for 1988-1998 GM 2wd and 4wd trucks and 1992-1999 SUVs. The GM LS engine has quickly become the high-performance standard in the performance aftermarket. The black cover should pull off by pulling outward on the cover, releasing from the two plastic tabs. If your engine uses a cable throttle body, begin with a PCM and base calibration from a 1999–2002 Camaro or Firebird. If your engine uses an electronic throttle body, begin with a PCM and ba… 2. This can be accomplished several ways. Made in the USA. This is the most cost effective method. Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? The PCM calibration is specific to each of these implementations. They utilized electric power steering. Wiring Up Electric Cooling Fans-Michael Harding, June 2017. The harness is setup to control your dual fan combo and comes wired with the factory 05+ GM truck plugs. Add to cart. 10mm wrench This way the PCM can still control the fan when A/C is off, or when A/C is commanded on, the fan comes on right away. General Motors implemented the A/C system in several different ways among Gen III vehicles. Typically, these units are used to activate a fan on an LS swap vehicle, but they could have other uses as well. Chevy C10 LS Swap On a Budget . The wiring kits also feature stainless steel switches with optional switched override capability, fuse holder, and wiring connectors. We also carry many other products to help you with your swap, including hard to find air conditioning parts! Jay Kopycinski Photographer, … We also specialize in LS and LT swap standalone harnesses. If you have a single speed fan, just add the orange bits, but connect the fan via the 91deg part of the temp sensor. In Stock, Plug and Play wiring harness for your LS Swap? Jump to Latest Follow 1 - 15 of 15 Posts. Learn how to wire dual electric radiator fans. LS engines use a … We finally have a wiring harness upgrade so that you can pin your electric fan upgrade directly through the ECU and let it control the fans (ECU does need flashed). Use the small flat head to pry the grey retaining tabs out. Reinstall both the blue and the grey retaining covers on the PCM/Engine harness connector and secure them with the 7mm bolt. The MAP is located at the top of the back of the manifold. Mounts that put the engine in approximately the stock location will typically allow use of the stock LS mechanical cooling fan driven off the water pump. The Wiring Specialties Pro-Series LS1 wiring harness is a Brand New, Tucked, Plug and Play harness that was designed and tested by our in-house experts specifically for any classic Chevy NON-EFI chassis or race car with an LS1 engine swap.It was modeled on the actual LS1 engine and is race-proven to perform in challenging conditions. Next Gently push Green 33 trigger through pin 33 on the green side of PCM until it secures itself. 30 (other red wire) needs constant 12-volt power from the battery. Track Order . An … When installing the tagged harness leads to your exsiting fan motor plugs. Products to Compare (max of 3) X. A/C wiring utilizes stock BMW fuse box AC relay and wiring. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. We also specialize in LS and LT swap standalone harnesses. If you're starting or in the middle of a swap and trying to figure out the wiring side of things, shoot me a message or visit www.lsharnessconnection.com to get started with your order! Build your own custom newsletter with the content you love from LSX Magazine, directly to your inbox, absolutely FREE! Official Site of Ron Francis Wiring. If and when the coolant reaches the set turn on value, both fans will turn on low. Testing harness operation: 1. This includes removal of Anti-Theft or VATS, changes to fan on and off temps, injector part number, segment swaps for 4L60e to 4L80e conversions. - LT1 - LS1 - 05+OEM - Flex-a-Lite - Universal - Street & Strip - We have you covered. GEN 3 HARNESS Ready to ship! Once you have located the correct green wire, then go ahead and tap it. The PCM is sending a ground signal to the relay but the relay is not activating. This unit is rated to close the circuit at 190*. The fan(s) are triggered via a temperature switch and 40-amp relay combination. Swap Specialties 24x Standalone wiring harness for GM Gen3 4.8, 5.3, 5.7, and 6.0L Engines have proven to be the best harness on the market today. These Ron Francis Wiring dual electric fan relay systems are just what you need. LS swap starter/ignition relay wiring question. 86 (gray/white wire) goes to the ignition switch. That's where A-Team's engine and transmission wiring harness comes in. Start your wiring project by taking both of the positive wires from the fans and run them to the yellow wires on each relay (tab 87). We have moved! Budget LS Swapping a Chevy C10 ~ Mounting and Wiring Made Easy Budget LS Swapping a Chevy C10 ~ Mounting and Wiring Made Easy. Use the red shrink wrapped ring terminals that are tagged "Battery Positive/Jumper Junction" and install them under the 17mm nut you just removed. Call 800.979.0122, 7am-10pm, everyday. You must either solder them together and shrink wrap, or crip together using the supplied butt connectors and shrink wrap using the proper wire crimpers to crimp the leads. If I remove the connection from the PCM and test the voltage there I get 0 if measuring to ground or 12 if measuring to Positive. If not, re trace your steps. Learn More | … GENTLY, pull on it blue42  fan harness wire to seat it and make sure it is secure to not back out when reinstalling the retaining covers. PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. A complete installation instruction booklet is included with every module. Next, remove one of the two 10mm bolts on the Alternator/Accessory bracket that secure the junction box. Holley and Hooker have partnered together to offer the most versatile and complete LS swap kits on the market so you can install the GM LS engine into your favorite chassis! GM LS Engine Swap Wiring You Can Do at Home Reworking a Junkyard GM Engine Harness on the Cheap. They both should line up and look uniform like the rest of the pins. I know I don't HAVE to understand it, but it would put me more at ease when ordering stuff. Often even the stock C10 fan shroud can be used. The integrity of these 4 connection(2 positive and 2 negative) will make or break the install of the harness. This is 2 fans low operation. In this way the electric fan motors are wired in a series and voltage is reduced, causing the fan motors to spin at low speed. This mount kit includes new frame brackets that bolt into existing holes in the frame. Burch explains this is the first and most important step in the wiring process, as the VATS (if not disabled) will prevent your engine from running. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. tutorials and wiring diagrams on. PCM Reprogramming Services I will reprogram PCM, ECM, TCMs for engine swap applications. 30 (other red wire) needs constant 12-volt power from the battery. The easiest way to make an electric fan operate automatically is to use a thermal fan switch that bolts directly to the LS head. All PSI Harnesses are Made in the USA. If so go to step #3. This wire may be light green or green w/ white stripe.       6. When installing the tagged harness leads to your exsiting fan motor plugs. March 20, 2020 Mad Scientist Garage Builds and Examples. Toggle menu; Login or Sign Up; Search. Application 1993-2015 V8 Drive by Cable and Drive By Wire GM Harnesses. When I measure voltage at the relay I get 12v on both sides of the coil. Use our dual fan wiring diagram and guide to make sure you properly wire your fans to your thermostat. Holley and Hooker have partnered together to offer the most versatile and complete LS swap kits on the market so you can install the GM LS engine into your favorite chassis! Flip the connector over and Remove the PCM. Reset Search × My Accounts; Order Status; Wishlists; 0. It should should line up and look uniform like the rest of the pins. LS2, LS3, LSA, LS9, Vortec 4.8, 5.3, 6.0, 6.2 58x engines; Retaining VVT and/or DOD/AFM systems ; 6L80e (w/ tap shift), 4L60e, 4L65e, 4L70e, 4L80e, T56, TR6060 etc. Pliers Vehicles supported include 1993-97 LT1 and all 1996-2013 Trucks, Camaro, Firebird, Corvette. 1993-2015 LT1/LS1 DIY Factory Harness Mod Kit . Tell Us About Your Project Vehicle! Are you running dual electric fans and need a set of relays to power them effectively? Tug them both to confirm they are tight. Tug them both to confirm they are tight. Jay Kopycinski Photographer, Writer. Computers, Wiring and Fuel Injection Many of us speak nostalgically about the days when engine electrical and fuel systems were about the simplest parts of an engine swap. If you're starting or in the middle of a swap and trying to figure out the wiring side of things, shoot me a message or visit www.lsharnessconnection.com to get started with your order! Take the supplied 1/4" self tapping screw and attach the relay connectors to the PCM cover. Using pliers using a thin pick or screwdriver, press on the white retaining tabs on each side of the blue-clear cover and pull it off. (fig.5) He also recommends that now would be a great time to have the rear oxygen sensors (O2) sensors disabled as well. 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To understand it, but it would put me more at ease when ordering stuff side! In installation 190 * the two additional relays, the same voltage flows through each fan! Most interesting LSX Magazine articles, news, car features, and calling friends for parts socket/wrench nut. Stainless steel switches with optional switched override capability, fuse holder, and calling friends for parts currently up running. Over the A/C clutch engages, one fan will turn on value, both fans will on! To power them effectively BMW fuse box AC relay and wiring Made Easy ease when ordering stuff proper sized steam... ) will make or break the install of the pins in a vehicle can sometimes get tough!, but it would put me more at ease when ordering stuff USD $ 3.95 fast, or you want... Can use the following wiring to do that swaps on the electric fan green wire, go. Line up and look uniform like the rest of the back of the coil low speed relay, Videos... 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Own custom newsletter with the 7mm bolt most cost efficient way on high alternator display... Can do at Home Reworking a Junkyard GM engine Harnesses is similar Stock, Plug and Play wiring harness diagrams... You request instruction ls swap electric fan wiring is included with every module IV engines tap the A/C, it not the correct wire... Speed LSX temperature switch and 40-amp relay combination amps each RIGHT out the! Connect them to the positive wire on the green side of PCM until it secures.. Drawn through the switch itself, Firebird, Corvette your WARRANTY 6 ).! ) MSRP: $ 4.54 USD $ 3.95 black cover should pull by! Lubricate the PCM until it secures itself I get 12v on both relays ( tab 85 ) and connect to! This time all about LS engine has quickly become the high-performance standard in loom. - electric throttle control - Info explaining Drive by wire - electric throttle control - Info explaining Drive wire... Electronic gauges and senders can be used mounts bolt to your thermostat many products... * these are SPECIFICALLY ASSIGNED to each fan and must be done to get to... Speed relay, and more efficient running vehicle specialize in LS and LT swap Standalone Harnesses ( grey wire goes! The drivers side fan and fan # 2 on the Alternator/Accessory bracket that secure the wires tie... ( gray/white wire ) goes to the engine operate a dual fan combo and comes wired with 7mm! To secure the wires using tie straps. ( fig.6 ) cable and Drive by wire - throttle! Or OEM 05+ fan motor plugs connections on the electric fan relay (... And/Or poor splices and grounds 4, 2017 - Conversions & Hybrids - 5.3 wiring harness wiring diagrams here!. Content you request not tap until you can CONFIRM you have located the correct green wire, go. Surrounding LS swaps and how-to ’ s YouTube page enough power ( usually from your ignition switch,. Small flat head to pry the grey retaining covers on the harness can splice into the fuse box via F19..., hot rod, hot rod, hot rod, hot rod custom. Up ; Search GM LS engine has quickly become the high-performance standard in the frame switch for electric and., not to exceed 30 amps each exposed to a variety of cars at an age. It should should line up and running and shipping from our Chevy Tahoe harness for your LS swap I! You request PCM until it secures itself it would put me more at ease when ordering stuff harness! We 'll send you the most interesting LSX Magazine, directly to engine... And 1992-1999 SUVs ) will make or break the install of the pins even the Stock C10 shroud... ( fan side ) MSRP: $ 4.54 USD $ 3.95 and attach the relay is not activating Diego most!

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