Question about 2003 Hyundai Santa Fe

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Blowing fuse ecu fuse - 2003 Hyundai Santa Fe

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You might need a better fuse like if you are useing a 5 amp fuse and it keeps blowing try a 10 amp fuse

Posted on Jun 02, 2010

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Posted on Jan 02, 2017

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1 Answer

What sensor would cause ecu fuse to keep blowing


Either a shorted wire or the ECU. Sensors run from the ECU, they won't blow the fuse.

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NO YEAR stated (old post)
there is no EFI fuse. sorry,
the ECU has 3 fuses.
FI, Dome, and IG-coil
all 3 run the ECU.
i do know what you ment.
but knowing the correct name makes reading the FSM better.
my guess 2 is you lost the fuse box cover and cant read the names.
guessing year at 91 -95
http://www.fixkick.com/power-elect/fusepanel-left-knee1w.jpg

the ECU fuse blows page. is here
http://www.fixkick.com/power-elect/blows-fuse.html

top reasons.
ECU bad CAPS
shorting fuel pump (they pull 4amps normal) if 10amps or
more they blow the fuse and or causes the ECU to click relays
like mad.





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1 Answer

Ecu fuse keeps blowing


ecu is faulty, short or ground in ecu

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99 vw jettal 2.0 gas fuse 29 15amp fuse keeps blowing-no spark unpluged coil and fuse keeps blowing. help please


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1 Answer

1991 Honda Civic SI will not start. #14 fuse which is marked alternator/solenoid keeps blowing when trying to start. I am trying to find out what feeds into this fuse to make it keep blowing. My other...


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I have a 2000 Hyundai Accent that keeps blowing the ECU 1 Fuse. I can change it one time and it will last for three weeks then before you know it I can change it 5 times in one day. What does the ECU 1...


The ECM1 fuse blowing usually indicates that the fuel pump wires shorted inside the tank. If you drop the tank and remove the module, you will probably find the insulation burned off the gray pump wire.

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1 Answer

Blown ecu fuse


ECU= Electronic Control unit. This is what controls all the engine electronics. All the sensors on the engine and other things are routed through the part. What it does is tells the engine how to run. Each sensor plays a specific role. The ECU reads how much are the engine is getting, tells the engine how much gas it needs, etc. Try digging around a salvage and finding a new ECU. Swap it out, and if it is still blowing the ECU fuse then you need to start looking for shorts.

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2 Answers

Fuel ECU fuse keeps blowing (30 amp)


Your fuel pump is internally binding and causing the fuse to blow. Change the pump (and filter while you're back there.)

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1 Answer

My fuel ecu fuse keeps blowing?


Unplug the O2 Sensor and see if it blow again. If it does not the sensor is faulty. Replace with a new one. BTY its in the exhast system.

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