Question about 1998 Pontiac Sunfire

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Car is noy charging batery

Car is not charging batery i have changed the aternater, ECM computer and have checked the wires. What else is there i have changed and checked every thing.

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Check the wiring from the alternator to the battery there is a fusible link located in the wire to prevent the battery from being overcharged. if the fusible link has blown it will not charge the battery

Posted on May 04, 2010

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1 wire required to feed alternator field. check for power to main output wire. if no power fuse link burnt.

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The car just get repair but know it wont star the injector dont open to spray the gas


Hi,

Check that the computer is hooked up and getting power.
This vehicle has what is called throttle body injection. The injectors are controlled by the ignition module and the ECM (main computer). Check the ECM fuse in the fuse box first.
Check fuel pressure with a GAUGE. The fuel pressure should be 9-13 lbs.If you are getting the right pressure in your main line there is a pressure regulator diaphram in the TBI that could be bad.

Check you ground wires from the body to the engine if that checks out then you may have a broke wire or bad injector drive in the ECM

Make sure you have fresh fully charged battery installed.
These are the easiest and least expensive things to do. If this doesn't fix it you may have a bad Ignition module and or a bad ECM.

Have a nice day.

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It wont crank like not getting power


ok sounds like you have a dead battery
1) if turns but slowly:

posible causes:
1.1) old dead batery/
or underchaged battery >check altenator in this case

did you leave your headlights turnt on and drained the battery of its charge?if so get a jump start and then run the car for 30-45 mins to rechagre the battery

if you have at your disposal anothere batery that you know has a good charge
try starting your car with that batery(not using jumper cables) hook it up!
if the slugish turn over is still there

1.2) check your wire conections for corision this means completly disconecting 1 lead at a time (only on one end of that lead)and cleaning them with a wire brush or some sand paper.
(on the battery and the starter also the ground strap conection to the frame.)

2) WONT TURN OVER AT ALL:
posible causes:
2.0) dead battery >try charging it>get a jump start
2.1) blown turnkey igntion fuse
2.2) blow fuse for main har nes wires
2.3) bad starter
2.4) corosion on wire conection (most often the batery terminals)
2.5) starter replaced and hooked up incorectly.

2.6) alram system preventing the turnkey igntion system from getting power

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New Alternater will not charge batery


When you touch the hot wire to the manifold you may have damaged your alternator. Take your Blazer to your local car service center such as Advance auto and have them run a test to make sure your rebuilt alternator is charging. Most centers will do this free of charge.

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There should be 4 wires on the alternator, labeled IG, L, S and B. The wires for S and B should be white. Connect both S and B wires to the positive terminal of your spare battery.

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