SPONSORED LINKS

Injector not working

Tiny
PAT.2
  • MEMBER
  • 2007 KIA SPORTAGE
  • 0.6L
  • 4 CYL
  • 4WD
  • MANUAL
  • 187,916 MILES
My injector number two not working. I have changed it but still same issue.
Friday, December 28th, 2018 AT 6:01 AM

36 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon.

Did you verify power to the injector. with the key on, remove the connector and test for voltage at the connector.

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

the other wire goes to the pcm. that controls turning the injector on and off by grounding that wire. A tool called a noid light can confirm if it is doing its job. you can get one at the parts store.

Roy
Image (Click to make bigger)
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+1
Friday, December 28th, 2018 AT 11:44 AM
Tiny
PAT.2
  • MEMBER
  • 25 POSTS
I had done that and even swapped the number one injector to number two, but still the same. I had changed the cylinder head valves at that side but still same issue.
Was this
answer
helpful?
Yes
No
Friday, December 28th, 2018 AT 11:57 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Have already done what?

What were the results? Did you have voltage? Did the noid light flash with the engine running?

Need specific information to help you.

Roy
Was this
answer
helpful?
Yes
No
+1
Saturday, December 29th, 2018 AT 5:00 AM
Tiny
PAT.2
  • MEMBER
  • 25 POSTS
Yeah the noid light flash please.
Was this
answer
helpful?
Yes
No
Saturday, December 29th, 2018 AT 5:09 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Then the injector is working.

What is the original issue that made you think the injector was bad?

Roy
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, December 29th, 2018 AT 5:18 AM
Tiny
PAT.2
  • MEMBER
  • 25 POSTS
I think misfire can cause this.
Was this
answer
helpful?
Yes
No
Saturday, December 29th, 2018 AT 6:47 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Yes, there is a lot more to a misfire than the injector.

you need to check compression in the cylinder, check for vacuum leaks and also check the ignition parts such as coil and plug.

https://www.2carpros.com/articles/how-to-test-engine-compression

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Roy
Was this
answer
helpful?
Yes
No
Saturday, December 29th, 2018 AT 6:51 AM
Tiny
PAT.2
  • MEMBER
  • 25 POSTS
Have checked vacuum leaks, coil and plug as well. I think there is damaged cylinder in that side.
Was this
answer
helpful?
Yes
No
Saturday, December 29th, 2018 AT 7:35 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Yep, the compression?

Roy
Was this
answer
helpful?
Yes
No
Saturday, December 29th, 2018 AT 7:41 AM
Tiny
PAT.2
  • MEMBER
  • 25 POSTS
Why don't give me your phone number or your whatsApp number so that we talk directly.
Was this
answer
helpful?
Yes
No
Saturday, December 29th, 2018 AT 8:02 AM
Tiny
RENEE L
  • ADMIN
  • 1,260 POSTS
Hello, sorry our experts do not give out there private contact information. Please keep responding to this thread as it may help others as well.

Thank you,

Renee
Admin
Was this
answer
helpful?
Yes
No
+1
Sunday, December 30th, 2018 AT 6:53 PM
Tiny
PAT.2
  • MEMBER
  • 25 POSTS
Okay thanks. I think is misfire that causing this so I am going to remove the cylinder head and base pan to check the piston rings and see.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, December 30th, 2018 AT 11:35 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I would do a compression test first to be sure it is an internal issue.

Roy
Was this
answer
helpful?
Yes
No
Monday, December 31st, 2018 AT 3:56 AM
Tiny
PAT.2
  • MEMBER
  • 25 POSTS
For now I have done everything on that car but still injector 2 not function. When you removed coil wire on the plug while the engine is running you can see the engine is shaking unless you insert the plug wire on the plug, but the number 2 didn't shake.
Was this
answer
helpful?
Yes
No
Friday, January 4th, 2019 AT 1:02 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You need to do a compression test as I suggested two times.

Roy
Was this
answer
helpful?
Yes
No
Friday, January 4th, 2019 AT 1:05 PM
Tiny
PAT.2
  • MEMBER
  • 25 POSTS
What's mean by compression?
Was this
answer
helpful?
Yes
No
Friday, January 4th, 2019 AT 1:53 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
The cylinder builds compression for the fuel/air mixture and when spark happens the mixture blows up and forces the piston down.

Roy
Was this
answer
helpful?
Yes
No
Friday, January 4th, 2019 AT 1:55 PM
Tiny
PAT.2
  • MEMBER
  • 25 POSTS
We have changed all the piston rings too.
Was this
answer
helpful?
Yes
No
Friday, January 4th, 2019 AT 2:00 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
No, that is not it. Compression check the valves and the head gasket as well.

You should take this to someone to do this test for you since you have no idea of what it does and how to check it.

Roy
Was this
answer
helpful?
Yes
No
+1
Friday, January 4th, 2019 AT 2:04 PM
Tiny
PAT.2
  • MEMBER
  • 25 POSTS
Have already done all, have checked the valves and there was no leakage and I had changed the head gasket as well.
Was this
answer
helpful?
Yes
No
Friday, January 4th, 2019 AT 2:11 PM

Please login or register to post a reply.

Related Fuel Injector Replace/Remove Content

Fuel Injector Replacement
GUIDE
Fuel Injector Replacement
Part of the fuel injection system a fuel injector is reasonable for allowing fuel to enter the engine which is controlled by the car's computer. Various sensors provide...
VIEW MORE

Sponsored links