Question about 1991 Chevrolet Cavalier
THERES FUEL PRESSURE AND SPARK.JUST NO PALSE ON INJECTORSRED WARNINING INJECTOR LIGHT FLASHES ON DASH OR SHOWS ON DASH.IS IT ECU OR IS IT JUST A FAULT TO BE CLEARD
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Posted on Jan 02, 2017
There needs to be 60 PSI of fuel pressure in the system to have the fuel injectors to work. There is also a fuel pump relay on the fire wall just left to the brake booster, There is two relays there, i just can not remember which relay is which but try switching the relays with one another. Also check the fuses to the fuel pump and ECM, and the fuel pressure from the shredder valve. Good luck and keep me posted, not a bad Idea to also replace the fuel filter, and that is located at the inside frame rail under the drivers side.
Posted on Jun 03, 2009
Check out your oil sending unit, fuel pump and relay, check for power (might be a fuse), the ignition control module (which if you remove it, can be tested for free at AUTO-ZONE), any related wiring, pick-up coil (inside the distributor), and possibly the ignition switch. If I can be any more help just as away.
Posted on Jun 06, 2009
SOURCE: no injector pulse
what vehicle? injector pulse controlled by computer. the computer recieves a pulse from crank angle sensor, or distributor pick up, etc.
then controls injector pulse. Mass air flow on some vehicles determines spray pattern
Posted on Jun 29, 2012
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