LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Disconnected fuel injectors hurt the engine at all?

Old Apr 29, 2006 | 10:58 AM
  #1  
djm_e22's Avatar
Thread Starter
Registered User
 
Joined: May 2005
Posts: 392
Disconnected fuel injectors hurt the engine at all?

Would it hurt the engine at all if I disconnected one possibly two fuel injectors while driving? If so what would it hurt? I have my reasons for now. Just two tired to explain them.
Old Apr 29, 2006 | 11:09 AM
  #2  
Injuneer's Avatar
Administrator
 
Joined: Nov 1998
Posts: 71,094
From: Hell was full so they sent me to NJ
Re: Disconnected fuel injectors hurt the engine at all?

Sure... it will mess up the A/F ratio. The O2 sensors will "see" all the air that is passing through the non-firing cylinders, think that bank is running super lean, and pour exta fuel in to overcome a non-existant lean condition. Probably enough to foul the plugs in the cylinders that still have the injectors, and maybe enough to wash the lubrication off the cylinder walls and destroy the rings. then the excess fuel, plus the huge amount of air will combust on the cat and melt it, plugging up the exhaust.

Other than that, you'll be fine
Old Apr 29, 2006 | 12:10 PM
  #3  
sbs's Avatar
sbs
Registered User
 
Joined: Feb 2004
Posts: 1,154
From: VA
Re: Disconnected fuel injectors hurt the engine at all?

Originally Posted by Injuneer
Sure... it will mess up the A/F ratio. ...
To overcome this problem, you could just force it to stay in open loop. I think there are multiple sensors you could unplug to cause that. The most obvious is the O2 itself.

OP - did you make a bet with a mustang driver that you could beat him with 6 cylinders? If you run it hard with nonfiring cylinders you'll probably damage the engine.
Old Apr 29, 2006 | 01:07 PM
  #4  
djm_e22's Avatar
Thread Starter
Registered User
 
Joined: May 2005
Posts: 392
Re: Disconnected fuel injectors hurt the engine at all?

Originally Posted by steve9899
To overcome this problem, you could just force it to stay in open loop. I think there are multiple sensors you could unplug to cause that. The most obvious is the O2 itself.

OP - did you make a bet with a mustang driver that you could beat him with 6 cylinders? If you run it hard with nonfiring cylinders you'll probably damage the engine.
I forgot to mention I wanted to keep it in open loop and was planning on disconnecting the O2 sensors. This should definantly keep it in open loop right? Is it bad to keep it in open loop or does the engine just tend to let it run a little richer?
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
AdsoYo
LT1 Based Engine Tech
2
May 2, 2018 03:21 AM
DirtyDaveW
Forced Induction
13
Dec 1, 2016 05:37 PM
dbusch22
Forced Induction
6
Oct 31, 2016 11:09 AM
Alex Barnes
LT1 Based Engine Tech
16
Jan 24, 2015 10:21 PM
chevroletfreak
LT1 Based Engine Tech
202
Jul 4, 2005 05:00 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 07:41 AM.