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  #15  
Old 07-04-2010
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Same driving style except the "driving like a twerp" phase to realy pin down the WOT AFR numbers.
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  #16  
Old 10-04-2010
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That is a massive increase in economy. Has the ratio change been taken into account. eg. distance measured is no longer accurate. Or are you using some other method for distance measurement? (GPS etc.)

Excellent info by the way. Extremely thorough. Good job there rainman.

cheers
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  #17  
Old 10-04-2010
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Awwwwwwwww SHIT can not believe I missed that.
THANK YOU FOR YOUR POST brugzz!
You are right my spedo is out so my economy numbers are garbage.
......................Standby have to adjust mathematically moving from 3.55 to 4.10

So now it is looking like 14.8L/100km =an improvement but nothing to write home about.
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Last edited by rainman; 10-04-2010 at 08:58 PM.
  #18  
Old 10-04-2010
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Maybe driving with a thermostat at 80 deg was making the ECU thinking the engine was still cold and was running it rich until the proper factory temp of 95deg was reached. My engine has high idle until it gets to 80 deg.
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  #19  
Old 10-04-2010
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yeah, you could be right about the thermostat and the cold/ rich fueling.
The theory about cold condition open-loop & enriched fueling happening at temperatures hotter than 70*C in the OBD1 jeeps, was put forward by people using OBD1 engine parameter data readers:
http://www.go.jeep-xj.info/HowtoTripC.htm
I have not seen any thing that disproves this Thus I subscribe to that line of thought.

Carves,
Scangauges don't work on OBD 1 Jeeps, and OBD2 jeeps stop cold/ enriched fueling @ around 20*c. agreed, I believe OBD1 is different.:

If you have comments pertaining to temperature & enriched fueling post here:
http://www.ausjeepoffroad.com/forum/...07#post1064507
This thread is about fuel injectors please keep on track.
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Obd1 scanner.
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Last edited by rainman; 10-04-2010 at 11:28 PM.
  #20  
Old 10-04-2010
carvesdodo  carvesdodo is offline
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Quote:
Originally Posted by rainman View Post
yeah, you could be right about the thermostat and the cold/ rich fueling.
The theory about cold loop & enriched fueling happening at temperatures hotter than 70*C in the OBD1 jeeps, was put forward by people using OBD1 engine parameter data readers:
http://www.go.jeep-xj.info/HowtoTripC.htm
I have not seen any thing that disproves this Thus I subscribe to that line of thought.

Carves,
Scangauges don't work on OBD 1 Jeeps, and OBD2 jeeps stop cold/ enriched fueling @ around 20*c. agreed, I believe OBD1 is different.:

If you have comments pertaining to temperature & enriched fueling post here:
http://www.ausjeepoffroad.com/forum/...07#post1064507
This thread is about fuel injectors please keep on track.
Thats OK rainman .... nakkas has a OBDII XJ which is why I responded to his post .... Will delete all after you have had time to find this .....
  #21  
Old 13-04-2010
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So have I heard correctly that Commy V6 injectors are an upgrade for the 4.0? If so from what model Commy and are they plug & play?
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