This harness is designed for 1985 - 1989 Tuned Port Injected TPI 5.0L & 5.7L V8 engines using the Mass Air Flow system. These engines were factory-equipped in Chevrolet Camaro and Corvette and were mated to either a 200-4R or 700R4 transmission.. The fuel pump is powered by EITHER the fuel pump relay, or the oil pressure switch. If EITHER the fuel pump relay/wiring harness or the oil pump switch/wiring harness works, the pump will run.
![[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram](https://ls1tech.com/forums/attachments/fueling-injection/68817d1151372341-need-2000-camaro-fuel-pump-info-fuel-pump-diagram-2.gif "[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram")
![[DIAGRAM] 1989 Camaro Fuel Pump Wiring Diagram FULL Version HD](https://www.justanswer.com/uploads/tracker40/2009-06-13_204512_pumpy.gif "[DIAGRAM] 1989 Camaro Fuel Pump Wiring Diagram FULL Version HD Quality")
![[DIAGRAM] 1999 Camaro Fuel Pump Wiring Diagram FULL Version HD](https://lh4.googleusercontent.com/proxy/6St69-0o9cBgt2e0_5v3GnMz196k33ghtjXgMJJrbnygX1J1Bqu-ABbTGJ_7vCxXEbAmuTMnAKINszdrsQIOqGbZmm8=s0-d "[DIAGRAM] 1999 Camaro Fuel Pump Wiring Diagram FULL Version HD Quality")
![[DIAGRAM] 89 Camaro Tpi Wiring Diagrams](http://www.falkengrip.se/z28/tech/location_fuel_pump_fuse.gif "[DIAGRAM] 89 Camaro Tpi Wiring Diagrams")
![[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram](https://lh6.googleusercontent.com/proxy/fhEzyP42FhJIlpvQWVEiu_43gg8t2KJJFU9hWwKK8geoF4D0iF-URCMygepcsHENjBYlif8LRMsUskRMKg=s0-d "[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram")
![[DIAGRAM] 1996 Chevrolet Camaro Z28 Wiring Diagram Auto Diagrams FULL](https://www.thirdgen.org/forums/attachments/electronics/61896d1073715426-87-camaro-z28-wiring-87-tbi-2.bmp "[DIAGRAM] 1996 Chevrolet Camaro Z28 Wiring Diagram Auto Diagrams FULL")
![[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram](https://www.thirdgen.org/forums/attachments/v6/271677d1391743204-ecm-fuel-pump-fuse-fuseblock_1.jpg "[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram")
![[DIAGRAM] 1969 Camaro Fuel Gauge Wiring Diagram FULL Version HD](https://ww2.justanswer.com/uploads/Bugfuel/2012-03-26_215127_88camarofuelrelay.jpg "[DIAGRAM] 1969 Camaro Fuel Gauge Wiring Diagram FULL Version HD Quality")
![[DIAGRAM] 85 Z28 Camaro Fuel Pump Wiring Diagram](http://www.austinthirdgen.org/mkportal/modules/contents/images/WoB/diagram_1992_power_distribution_V8_vinF_and_vin8.jpg "[DIAGRAM] 85 Z28 Camaro Fuel Pump Wiring Diagram")
![[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram](https://www.thirdgen.org/forums/attachments/electronics/71914d1085005144-fuel-pump-wiring-89-1q81.gif "[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram")
![[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram](http://www.justanswer.com/uploads/HammerTime/2007-06-17_202505_Fuel_pump_89_Camaro_2.gif "[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram")
![[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram](http://paceperformance.com/files/Camaro5/volt-coolant-pump.jpg "[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram")
![[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram](https://ls1tech.com/forums/attachments/fueling-injection/610700d1501328824-98-racetronix-fuel-pump-hotwire-harness-w-trap-door-p1040579.jpg "[DIAGRAM] 1986 Camaro Fuel Pump Wiring Harness Diagram")
![[DIAGRAM] 1999 Camaro Fuel Pump Wiring Diagram FULL Version HD](https://lh5.googleusercontent.com/proxy/emZcn00GBe7-XjE0nge0U7tTrWPkBC1pBAZLdV04GeGCH2zUU4OxbGZVSsD6u9U3x0ZMGjJhnOWK4anmIXGcsrw-6AM6G9RW0kW_YADr7yWLhYNh825M6YI0oiHc6ZJbML-NcpV5wkEMTc4igTIDSulzfZm44icNOtaUCAORqiLYF5y2NF9T9OcF9mOo0wVZMh5sBsCfcVxSPaj8K0fftc9FyNxLSBERULBzmH9je8QwskWzYsXHO1YLVmwbCADhB_o24mNYsg=w1200-h630-p-k-no-nu "[DIAGRAM] 1999 Camaro Fuel Pump Wiring Diagram FULL Version HD Quality")
![[DIAGRAM] 1986 Camaro 305 Injector Wiring Diagram](https://ls1tech.com/forums/attachments/fueling-injection/68816d1151372341-need-2000-camaro-fuel-pump-info-evap-system-diagram.gif "[DIAGRAM] 1986 Camaro 305 Injector Wiring Diagram")
![[DIAGRAM] 1986 Camaro Engine Wire Harness Diagrams](http://lt1swap.com/pictures/93lt1_harness.jpg "[DIAGRAM] 1986 Camaro Engine Wire Harness Diagrams")
This document provides a diagram and description of a typical wiring harness layout for a 1986-1989 Chevrolet Camaro with Tuned Port Injection (TPI). It identifies each component in the diagram and its location. Additional details are given on typical connections needed to integrate an aftermarket harness, including identifying connectors, adding fuses, and connecting specific wires to sensors.. Custom wiring harness layout The diagram above is typical of my custom speed density harness layout. The layout is pretty close to what to expected. The esc module and relays mount on the firewall on the left near the power brake booster. The cooling fan relay and fuse mounts to the r/s fender well near the battery (on a Camaro).