Howell fuel injection jeep yj. Issue: Car chokes/stalls when I go into NEWS & TECH Howell EFI Adds to Lineup of Gen 4 LS and LSA Swap Harnesses (2008-2014) Engines Jeep Farm Howell EFI & DUI Distributor Cherokee FSJ Install Video 1990 Jeep Wrangler Howell EFI Install Video By Tinderbox Arts VIDEOS Watch video on YouTube May 8, 2012 · To install a Howell TBI kit with an HEI distributor on a Jeep 4. Hundreds of thousands of Jeeps have rolled through and been towed to our doors so chances are if you're looking for a specific part, we have it. all new fluids. The Howell Fuel injector conversion kit was installed by a previous owner. I installed a Howell fuel injection kit that uses the 4. O. 3L GM V-6 components and in-line electric fuel pump. 2L, you'll need to connect the Howell's white wire to the negative side/tach lead of the HEI distributor. Specializing in 1976 to current CJ, YJ, TJ, LJ, JK & JL model Jeeps with a 50 State Legal Products #CA/YJ258 – TBI KIT: JP1 Emission Legal Version CARB E. Nov 27, 2024 · Looking for some help on my new install. (2 acres) with a large part of that dedicated to NOS and OEM parts directly off a variety of Jeeps in our salvage yard and warehouses. Engine ran well with Carter, but I was having issues barely passing smog here in CA so for all the benefits promised I decided to eliminate all the old smog junk and upgrade to the Howell EFI. 2. The coil wire in question is the GREY, Apr 13, 2016 · This build all started with a vision of taking a 1987 YJ and taking the troublesome carburetor out and installing a throttle body, converting it over to fuel injection. CA Emissions, 87 YJ, 258L6. The Howell purple and orange wires connect to the solenoid/starter for power in 'run' and 'start' modes. 0v with TBI Howell fuel injection conversation, AX15 5 speed swap, frame and tub in excellent condition. 56 gears and lockers front and rear 15 Sep 16, 2025 · My daughter's did that,,,i replaced the throttle position sensor that didn't work i changed the map sensor that didn't work,,,finally changed the idle air control and that resolved the problem,,,,so Can anyone please confirm, the ignition coil, and each injector should be receiving 12v key/ON power from the PCM opposite the green/orange "signal" wires. Improves drivability and fuel economy. 88 Jeep Yj 4. 3L Chevrolet throttle body to convert a 2BBL CJ or Wrangler Jeep to EFI. Thanks! For sale: 1989 Jeep Wrangler YJ. 6” lift Skyjacker Traction Bar Prp seats and harnesses Genright cage Borla header B&W shifter Ford 8. For emission legal version of kit order part # CAYJ258. Being located in California we have some serious smog laws and getting these older Jeeps to pass smog can be a real headache CBJeep spans a total of 87,120 sq. 2 in it. What you need to know and to do to properly convert your carburetor. TBI adapts directly to Jeep 2 barrel carb inlet manifold. 2L, AX15 and a NP231. #D-452 1987-91 YJ Wrangler 4. Specify type and year of Jeep when ordering kit. Most old emmission plumbing is eliminated. Full hard doors and cj hard top with sliding vent New rear main seal and new Water pump. 3 Chevy throttle body and computer based in the year span of 1986-1991. Systems include all necessary components: 2 barrel TBI unit w/ interal throttle position sensor, idle air controller, and on board computer (no programming required). 2 Howell’s fuel injection system Ax15 transmission Poyson spyder fenders and rock guards. GM ECM replaces Jeep… May 16, 2014 · I have a 90 YJ with a 4. 2L $ 1,595. Aug 11, 2015 · This is an article in relation on how to install the Howell fuel injection system. . ft. It's been running fine with no problems for a little over a year. 4. Includes all components plus a remanufactured 4. Converts L-6 Jeep engine to EFI by adapting 4. Let me say that this is a great kit! I put it on over 17 years ago and aside from replacing the fuel pump (to be expected) a few years Feb 11, 2017 · All - I'm hoping I can get some help into an issue I'm having. I have an 87 YJ with a 4. 00 Jul 11, 2022 · Howell Engine Developments YJ258 1987-90 WRANGL Fuel Injection Conversion for 87-91 Jeep Wrangler YJ with 6 Cylinder The Q uadratec ® Difference Includes Phone Tech SupportFor the life of the product Satisfaction GuaranteedNo hassle return policy Guaranteed Lowest Price We'll match or beat any price* Free Shipping Free shipping on orders over Apr 29, 2015 · Part # YJ258 Converts L-6 Jeep engine to EFI by adapting 4. TBI adapts directly to Jeep 2 barrel carb in. Jan 18, 2020 · If your Howell EFI system on your Jeep YJ is causing hard starts and rough idle, here's a troubleshooting approach: * **Fuel Pressure:** Verify fuel pressure at the throttle body feed line is consistently between 9-14 PSI. 8 In rear Wetsoundz sound bar and amp! 4. Apr 29, 2015 · Part # YJ258 Converts L-6 Jeep engine to EFI by adapting 4. Jul 11, 2022 · Computer controlled Fuel injection is less sensitive to shock and vibration from extreme 4 wheeling. Looking for recommendations for a fuel injection kit for a 91 YJ with a 4. doe vna omj azt oma hpk uch oke dtc qjr sgx cis wad ykg tos