Something is wrong with my electrical system

Tiny
OMARMAJD
  • MEMBER
  • 2005 HYUNDAI ELANTRA
  • 0.5L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 150,000 MILES
My 2005 hyundai avante ( elantra) keeps blinking
I mean when the engine is on and the car isnt moving the engine keeps blinking
I changed two of the four coils and the spark plugs and the car worked fine but after 2 days the problem is back again
I checked if there is any oil or lequids on the spark plugs but there is not also checked the car and no trouble was detected by the trouble shooting device
This problem is two years old and it is very annoying
Please tell me what could cause this and how to fix it
Thanks
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Tuesday, November 10th, 2015 AT 5:50 AM

9 Replies

Tiny
HMAC300
  • EXPERT
For codes first if check engine light auto parts can do it.
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Tuesday, November 10th, 2015 AT 6:22 AM
Tiny
OMARMAJD
  • MEMBER
Didn't understand
Please explain more
Thank you very much
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Saturday, November 14th, 2015 AT 9:11 AM
Tiny
HMAC300
  • EXPERT
1. Go to auto parts store
2. Tell them your check engine light is on
3. They will hook up scanner and tell you what the code is
4. They will either sell your the part for you to install
5. If you are unable to do this take to your friendly mechanic
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Saturday, November 14th, 2015 AT 10:18 AM
Tiny
OMARMAJD
  • MEMBER
But the check engine light is not on
And when you use the computer to check the system it says everything is ok
Thats why im having a really hard time with this issue
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Sunday, November 15th, 2015 AT 9:29 PM
Tiny
HMAC300
  • EXPERT
I forgot to add check fuel pressure with a gauge which you may need an adapter so a mechanic will need to do that.
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Monday, November 16th, 2015 AT 7:01 AM
Tiny
OMARMAJD
  • MEMBER
Fuel pressure is 5.7
But someone told me once that the normal range is 2.5 - 3.0
Does that effect the spark plugs and the coils?
Could it be the reason behind all this?
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Tuesday, November 24th, 2015 AT 11:35 AM
Tiny
HMAC300
  • EXPERT
3.5 bar is normal if at 5.7 your fuel pressure regulator is probably sticking. And letting it go to high.
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Tuesday, November 24th, 2015 AT 12:37 PM
Tiny
OMARMAJD
  • MEMBER
First of all, you are so kind for keeping up with me and thank you
Second of all, im so sorry about the last replay because I was talking about something else. The scanner reads that the fuel valves gives 5.7 instead of 2.5! I dont know 5.7 what
But before connecting the problem to the fuel path let me tell you another thing
When I change the coils and the spark plugs, the car runs normally for a short time before the same issue appears again
So should I run the fuel pressure test?
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Monday, December 14th, 2015 AT 11:29 AM
Tiny
HMAC300
  • EXPERT
5.7 is to high I gave specs already, take this to alocal garage to get fixed you are not able to fix this yourself due to not knowing your way around a car. I have no further comments.
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Monday, December 14th, 2015 AT 11:57 AM

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