93-02 V6 Tech V6 Camaro General Topics.

Are the fuel injectors on a 3.8L batch fire or sequential?

Thread Tools
 
Search this Thread
 
  #1  
Old 05-18-2010, 09:49 PM
JC316's Avatar
Newbie
Thread Starter
Join Date: Dec 2009
Location: DFW, TX
Posts: 25
Default Are the fuel injectors on a 3.8L batch fire or sequential?

Just resurfaced the heads and replaced the head gasket on my 96 3.8L camaro and now it wont start. With a hit of starter fluid, it starts then immediately dies, which says fuel. I have pressure at the rail and this car was running fine before this. All of my vacuum lines are back where they should be too.

Now, I just randomly hooked the fuel injector plugs back up, thinking it was like my 89 Iroc, which fires all injectors at once. Does it batch fire, or does it fire in sequence on the 3.8l?
 
  #2  
Old 05-18-2010, 10:02 PM
Boost's Avatar
1st Gear Member
Join Date: Jun 2005
Location: Dirty South Jersey
Posts: 104
Default

im not sure, ill have to look into this. is it multiport fuel injection or direct port?
 
  #3  
Old 05-18-2010, 10:29 PM
libertyforall1776's Avatar
Overdrive Member
Join Date: Nov 2006
Location: IL
Posts: 4,042
Default

I'm not certain, but it's a function of the PCM...

Check out the attached image...
 
Attached Thumbnails Are the fuel injectors on a 3.8L batch fire or sequential?-96-camaro-3.8l-fuel-injector-control-circuit.jpg  

Last edited by libertyforall1776; 05-18-2010 at 10:34 PM.
  #4  
Old 05-18-2010, 10:40 PM
z28pete's Avatar
Tech Droid
Join Date: Aug 2005
Location: North East PA
Posts: 9,215
Default

You have sequential injection. However, wrong connection should not prevent the engine from starting. Get some NOID lights and verify that the PCM is firing the injectors. The PCM applies ground to complete the circuit. There are two injector power fuses, one per bank.
 
  #5  
Old 05-19-2010, 12:14 AM
JC316's Avatar
Newbie
Thread Starter
Join Date: Dec 2009
Location: DFW, TX
Posts: 25
Default

I went back out and looked and I have them hooked up right. I will check the fuses and make sure they are firing tomorrow. Thanks for the help and I will keep you posted.
 
  #6  
Old 05-19-2010, 09:36 PM
JC316's Avatar
Newbie
Thread Starter
Join Date: Dec 2009
Location: DFW, TX
Posts: 25
Default

I found the problem. My dad had pulled the fuel injector fuse when we were cranking it over to check for coolant leaks into the cylinders. However, I am about ready to drive this damn thing off a cliff since replacing the head gaskets didn't do anything. Still getting the cooling system pressurized.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
gb1969
82-92 V8 Tech
1
03-27-2012 09:13 PM
SCar1324
93-02 V6 Tech
21
06-28-2010 05:14 AM
bradspaugh
70-81 V8 Tech
1
12-18-2009 08:08 PM
dce1843
LT1/LT4 Tech
2
11-15-2009 07:50 AM
JHL88
93-02 V6 Tech
2
05-21-2007 04:24 PM



Quick Reply: Are the fuel injectors on a 3.8L batch fire or sequential?



All times are GMT -5. The time now is 09:07 AM.