Description for 1994 gmc sonoma 4 3l spider fuel injector routing inside 4 3 liter v6 vortec engine diagram. This circuit is the one that provides injector 6 with the pulse signal from the pcm.
To determine many photos inside 4 3 liter v6 vortec engine diagram graphics gallery please follow 4 3 liter v6 vortec engine diagram.
4.3 vortec spider injector wiring diagram. Leaking spider fuel injector test. Spider fuel injector and fuel pressure regulator test. Dubbed central port injection or cpi the system looked and functioned much differently than previous designs.
However many techs have encountered hard start or no start complaints with pressure readings as high as 56 to 57 psi on a cold engine. Sellers with highest buyer ratings. Wiring diagram schemas newtworks.
Ships in a huge savings returns made easy world s largest selection under 10types. Page 3 of 4. Vortec v6 fuel injection harness 96 99 part 2 days ago chevy v6 spider injector chevy vortec engine diagram chevy vortec 5 7 harness schematics 4 3 injector upgrade gm top rated plus.
Gm 4 3l 5 0l 5 7l cpi csfi. I hope i can take some of the dark voodoo power away from the notorious vortec injection spider. Using a wiring diagram i knew that i needed to locate pin 31 in the c2 red connector of the pcm.
If your reading this then like i did you have been searching the web and under the hood of you gmc jimmy s10 astrovan or chevy blazer trying to figure out what to do about that crazy injection system in your truck. Spider fuel injector misfire and hydrolock troubleshooting case study. In 1992 general motors introduced a very unique fuel injection system on its 4 3 liter vortec v6 truck engine.
Cpi system at 54 to 64. Gm l l l using a wiring diagram i knew that i needed to locate pin 31 in the c2 red connector of the pcm. Testing the fuel injector s wiring.
This harness is designed specifically for the central multiport fuel injection system and will not work on the throttle body fuel injection also used on the vortec. The cpi system utilizes one main injector that pressurizes six plastic tubes housed in the intake manifold. Leaking fuel pressure regulator test.