24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
Sponsored by Trailer Plus

Running odd after injector swap

Thread Tools
 
Search this Thread
 
  #1  
Old 02-03-2013, 05:46 PM
harry22's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Aug 2009
Location: small town MN
Posts: 334
Received 27 Likes on 24 Posts
Default Running odd after injector swap

A kid in town installed 100hp injectors and now it has no power or seems dead above 2000rpm. He said he had a new lift pump put in and is running without any programmer. Could this be because the cross over tubes are not tight enough? Im just throwing ideas out...
 
  #2  
Old 02-03-2013, 05:52 PM
Red_Rattler's Avatar
High Tech Redneck

Join Date: Nov 2007
Location: Columbus WI
Posts: 6,730
Received 496 Likes on 397 Posts
Default

It's because he's on stock tuning... Just because he added a set of injectors doesn't mean it will make more power.
 
  #3  
Old 02-03-2013, 07:07 PM
harry22's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Aug 2009
Location: small town MN
Posts: 334
Received 27 Likes on 24 Posts
Default

Just went for a ride in the truck and i agree with you 100%. it seems to have a little more grunt but it still has stock timing, and de-fuel settings. It runs right up to 2000 and creeps to 2300. No missing no popping, everything sounds like it should. Sorry for posting before seeing truck first hand guys!!
 
  #4  
Old 02-03-2013, 07:58 PM
Bryce's Avatar
Diesel Enthusiast
Join Date: Sep 2012
Location: Carl Junction, MO
Posts: 403
Received 28 Likes on 26 Posts
Default

It should still rev without any problems. Have you checked for codes? Sounds like it could be the apps. I would suggest trying an apps reset. If that doesn't work test the apps following the procedure on this link VP44 Diagnostic
 
  #5  
Old 02-04-2013, 05:50 PM
jkidd's Avatar
Diesel Bombers Sponsor
Join Date: Jan 2008
Location: Kaysville UT
Posts: 1,100
Received 77 Likes on 71 Posts
Default

boost fooler or programmer? if not probably getting factory defueling/codes
 
  #6  
Old 02-04-2013, 06:45 PM
harry22's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Aug 2009
Location: small town MN
Posts: 334
Received 27 Likes on 24 Posts
Default

It would rev to redline but i think he was thinking it would feel more powerfull than it did. I did reset the apps just to see if it made a difference and it didnt. He is looking for a tuner rite now.
 
  #7  
Old 02-04-2013, 06:52 PM
Bryce's Avatar
Diesel Enthusiast
Join Date: Sep 2012
Location: Carl Junction, MO
Posts: 403
Received 28 Likes on 26 Posts
Default

Ok. I thought it wasn't reving past 2300
 
  #8  
Old 02-04-2013, 09:54 PM
harry22's Avatar
Diesel Enthusiast
Thread Starter
Join Date: Aug 2009
Location: small town MN
Posts: 334
Received 27 Likes on 24 Posts
Default

Nope, i saw 3000. Can you guys recommend a programmer? Will a aftermarket lift pump be immediately needed? All i know about the vp44 trucks is they need a good lift pump.
 
  #9  
Old 02-04-2013, 10:06 PM
Bryce's Avatar
Diesel Enthusiast
Join Date: Sep 2012
Location: Carl Junction, MO
Posts: 403
Received 28 Likes on 26 Posts
Default

Need to do the lift pump first. Next would be a set of gauges or a chip with built in gauges. I really like my edge juice. The edge comp is pretty much the same as juice without a monitor and gauges.
 
  #10  
Old 02-04-2013, 11:43 PM
RollinCoal99's Avatar
Diesel Enthusiast
Join Date: Jan 2011
Location: ellington Ct
Posts: 295
Received 5 Likes on 5 Posts
Default

i just put 100hp injectors in my truck and i thought the same thing at first also. i left the chip on 0 and just the injectors alone didnt do much but with the chip its way better
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ROCKITV8
5.9 Liter CR Dodge Cummins 03-07
5
06-17-2015 08:38 AM
carid
Diesel Bombers Sponsors
0
04-06-2015 08:43 AM
CumminsAtYa
6.7 Liter Dodge Cummins 07.5-12
0
03-17-2015 09:23 AM
carid
Diesel Bombers Sponsors
0
01-12-2015 04:32 AM
ssmith.77
Chevy/GMC 6.2L and 6.5L
7
01-11-2015 02:03 PM



Quick Reply: Running odd after injector swap



All times are GMT -5. The time now is 08:35 PM.