Question about Geo Cars & Trucks
May be a sttlupid question but did you check fuses and relays? Also, a faulty crank sensor or cam sensor will cause no power to the fuel system as well.
Posted on Jul 22, 2021
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Posted on Jul 22, 2021
I am not familiar with the model. Single point injection would normally inject almost continuously and if the wiring diagram was checked it would probably show the injector power comes direct from the same supply as the ECU uses and the ECU will provide the ground path if the ECU (ECM) is good and is receiving the correct data from the various sensors.
This provides possibilities: -
Insufficient information from sensors.
If there is an immobiliser it is worth checking it is properly disarmed.
Posted on Mar 23, 2020
Check the pickup in the distributor as this is the cam sensor. The injectors run of the pulses created while the rotor is turning around. It should be a plastic disk located under the rotor button.
Posted on Mar 13, 2009
That eliminates the crankshaft and camshaft position sensors. Have you checked the fuel injector itself for an open winding or stuck valve plunger? There should not be a steady 12 volts to the injector--if good injector, it would be spraying fuel steadily into the throttle body. But at least the engine should try to run if poorly. Take the injector out, dry it off with air, and intermittently apply 12 volts to one terminal while grounding the other. You should hear a click from inside every time you touch 12 volts. If not, replace it. If it does, it may be plugged with debris. Try blowing through it in reverse with compressed air.
Posted on Jul 17, 2009
SOURCE: 1993 geo tracker fuel injector
ecm does control but is also based on input from the Throttle position senser. unplug the TPS and try again. Also make sure the ECM and engine grounds are good
Posted on Feb 21, 2010
truck is missing and it back fires, started after i washed engine, replaced distributercap,plugs,wires,coil,ignition model,throttel body sencer,map sencer, its still missing. brake warning light flashes 7 times and stays on on the 7th flash. please heip
Posted on Jun 10, 2011
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