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  • 2005 - 2014 S-197 Mustang -General/Talk-
  • 2005 - 2009 Specific Tech

Fuel injectors

  • Thread starter Thread starter Stangnoob
  • Start date Start date May 25, 2020
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Stangnoob

Member
Feb 25, 2020
28
3
13
California
May 25, 2020
#1
  • May 25, 2020
  • #1
Running too rick on bank 2 , I have new o2 sensors, MAF, stock tune for smog testing, will bad injectors cause it to run too rich? I’m seriously considering replacing those too, why not?
Appreciate all the help
 

Dino Dino Bambino

15 Year Member
Jun 13, 2007
1,673
90
79
Cyprus
May 25, 2020
#2
  • May 25, 2020
  • #2
Yeah, bad injectors could certainly do that.
 
Reactions: Stangnoob
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EmmJay

Active Member
Jun 16, 2019
96
25
28
USA
May 25, 2020
#3
  • May 25, 2020
  • #3
Swap the injectors to the opposite cylinder banks and see if the problem follows them there. This will tell you if it is an injector problem or not. Then do the same with the coils. This might save you from throwing money at parts unnecessarily.
 
Reactions: Stangnoob and Dino Dino Bambino
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Stangnoob

Member
Feb 25, 2020
28
3
13
California
May 26, 2020
#4
  • May 26, 2020
  • #4
EmmJay said:
Swap the injectors to the opposite cylinder banks and see if the problem follows them there. This will tell you if it is an injector problem or not. Then do the same with the coils. This might save you from throwing money at parts unnecessarily.
Click to expand...
Thanks EmmJay! Well, CJ Pony and AM had some on sale for like $199. I bought new ones...the ones On my car look like emperor palpatine threw up on them. They are in rough condition so I bought new ones.
 
S

Stangnoob

Member
Feb 25, 2020
28
3
13
California
Jul 18, 2020
#5
  • Jul 18, 2020
  • #5
Stangnoob said:
Thanks EmmJay! Well, CJ Pony and AM had some on sale for like $199. I bought new ones...the ones On my car look like emperor palpatine threw up on them. They are in rough condition so I bought new ones.
Click to expand...
So I purchased the new injectors as well as an oil catch can, got tuned, it turned out that I had to go off-road because my cats were shot. Now I’m running rich an lean on bank 2...this is getting exhausting anyone have any ideas?
 
E

EmmJay

Active Member
Jun 16, 2019
96
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28
USA
Jul 18, 2020
#6
  • Jul 18, 2020
  • #6
I know that on some custom tunes they turn off the rear O2 sensors to get the A/F right. Since you dumped the cats, how many O2 sensors are you using? Also, is the tune a custom one based on dyno pulls?
 
S

Stangnoob

Member
Feb 25, 2020
28
3
13
California
Jul 18, 2020
#7
  • Jul 18, 2020
  • #7
EmmJay said:
I know that on some custom tunes they turn off the rear O2 sensors to get the A/F right. Since you dumped the cats, how many O2 sensors are you using? Also, is the tune a custom one based on dyno pulls?
Click to expand...
I’m working with Lito, been data logging for the past 3 weeks. I have 2 sensors one on each bank; So today I’m going to check my headers for leaks on bank 2.
 
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