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Reasons for blowing ECU fuses?

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Old Apr 11, 2005 | 10:10 PM
  #11  
Random Hero's Avatar
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Default Re: Reasons for blowing ECU fuses?

A problem I have had was with a bad o2 sensor. The actual o2 sensor inside was grounding out and blowing ecu fuses. God that took me along time to figure out.
Old Apr 11, 2005 | 11:17 PM
  #12  
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Default Re: Reasons for blowing ECU fuses?

Originally Posted by Random Hero
A problem I have had was with a bad o2 sensor. The actual o2 sensor inside was grounding out and blowing ecu fuses. God that took me along time to figure out.
i would consider that, only problem is the o2 sensor is brand new.

also, for ***** and giggles, Ive disabled the o2 sensor in crome to see if that would help, all it did was make partial throttle run like ***.

should i try disabling the ELD?
Originally Posted by Whitey
I had this problem, it was from an injector wire grounding out of the frame
my injector wires have never been cut, ever...and the entire engine harness is pretty new.
Originally Posted by chris
ground I promise. Check all of them and clean them up. Happened to me years ago on my hatchie
all grounds check out fine.

Originally Posted by warrick
a wire grounding out and pulling too much power through the power wires to the ecu... even though there should be protection on the board.
i dont get how that could be, nothings been changed at all. man i really need to just get this thing up to leed and let him check it out. help tune it at the same time.

Old Apr 12, 2005 | 12:06 AM
  #13  
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Default Re: Reasons for blowing ECU fuses?

Dont you hate all the silly ---- with cars
Old Apr 12, 2005 | 12:10 AM
  #14  
FooK's Avatar
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Default Re: Reasons for blowing ECU fuses?

Originally Posted by 88dx
Dont you hate all the silly ---- with cars
yeah this one is very frustrating too. I have a feeling replacing the turbo isnt gonna do ---- with the ecu cel issues at all, but I guess its worth a shot since it needs to be swapped anyways.
Old Apr 12, 2005 | 12:20 PM
  #15  
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Default Re: Reasons for blowing ECU fuses?

I know the o2 sensor is new, but I'm liking this idea of it grounding out inside.

try unplugging it. yes, it will throw a code, but drive it, see if it still flickers the CEL on decel and blows the fuse.
Old Apr 12, 2005 | 07:44 PM
  #16  
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Default Re: Reasons for blowing ECU fuses?

Originally Posted by warrick
I know the o2 sensor is new, but I'm liking this idea of it grounding out inside.

try unplugging it. yes, it will throw a code, but drive it, see if it still flickers the CEL on decel and blows the fuse.
i think you're right, i just took off my turbo and downpipe and noticed that my o2 sensor rubs on the metal part of the radiator tank, wires were pinched pretty good, that would explain the decel (motor tilts forward) issue. ---- i shoulda located those bungs better. oh well ill just put the stock o2 pre-turbo on the hf mani if i have to.

ill mess with it when I get the turbo and stuff back in the car tomorrow, I'll also have my laptop cpu tomorrow too so maybe I can get it on the wideband and see what the tps is doing as well.
Old Apr 13, 2005 | 04:48 PM
  #17  
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Default Re: Reasons for blowing ECU fuses?

i blew one once, it was a harness wire, that wore its casing off.
Old Apr 19, 2005 | 05:08 PM
  #18  
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Default Re: Reasons for blowing ECU fuses?

I used to blow some up last summer

It was my ECU plugs that weren't plugged in right
Old Apr 19, 2005 | 07:40 PM
  #19  
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Default Re: Reasons for blowing ECU fuses?

Originally Posted by vince_badaz
I used to blow some up last summer

It was my ECU plugs that weren't plugged in right
mine was the o2 sensor grounding out...did i already say that?
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