60101 TBI Harness Standard Length for 1986-1993 GM Engine 4.3L Wiring Harness V6; 5.0, 5.7 & 7.4L V8 About this wiring harness Goowell injection wiring uses all new TXL wire, OEM fitment connectors, and grouped harness breakouts to make it easy to install and keep you from having to use old wiring that has been reworked; OE quality is matched by machine-crimped terminals Before leaving our building, we test every EFI harness to make sure that each connector is properly pinned out and seated... With Painless EFI wiring, you don't have to look for loose connections. With the powder-coated bracket and diagnostic port, you can check codes and figure out what's wrong just like with a new OE vehicle. See the product description for more information on how it fits. When reliability and performance can't be compromised, you need TXL Wire, not the cheap primary wire you find in other harnesses; High strand count copper and good insulation make the wires resistant to wear and tear and easy to route. American Made, Proud to be an American Since 1990: Every Painless harness is proudly made in Fort Worth, Texas, where our unbeatable Technical Support team is also based. Need help installing... call us, that's all. No OEM fuseboxes are needed because the connections to the chassis are so easy. Ignition, Fuel Pump, and Gauges: There are a few wires with labels that you need to connect. All of the looms are secured, and the engine and transmission connectors are in place. Some important features of this GM engine 4.3L wiring harness are: Both banks now come with integrated coil pack harnesses at no extra cost. There is a 5 Circuit Bussmann Fuse/Relay Block that works on its own, so you don't have to connect it to the OEM fuse boxes. Circuits provided: Ignition, Fuel Pump, Fan1, Fan2, and A/C relay (if not using A/C, can be used for the oil or diff cooler fan, etc.) Support for proper gauge wiring for two 30 Amp PCM-controlled electric fans ThermaShield 1,2200F protects the aluminum and fiberglass connectors on knock sensors, so the connectors no longer melt. The 6L80/6L90 Automatic Transmission CAN Option: A/C Request Tow/Haul Mode: Tap Up/Down Park/ Neutral Starter Switch on the safety backup lights Relay CAN Output, Speedometer CAN Output, and Tachometer CAN Output.Automotive Wiring Harness Free Sample website:http://www.shusbs.com/wiring-harness/automotive-wiring-harness/