srt4 lt fuel -33 and st -20 any help
Moderator: mikel
srt4 lt fuel -33 and st -20 any help
my 05 srt4 is pulling 2 much fuel at idle long term is -33 and short term is -20 and my a/f are 13.5 at idle and around same under boost. I have checked everything i can think of upstream 02 map sensor iac sensor and tps sensor and there wireing. any help please. the only way i can get it to stop pulling fuel at idle is creat a vacuum leak but my a/f is still reading the same. I am lost.
- mikel
- Posts: 58726
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
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RE: srt4 lt fuel -33 and st -20 any help
have you changed injecotrs, or MAP/TIP sensors?
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
RE: srt4 lt fuel -33 and st -20 any help
yes and no. This is all happening on a stock tune with stock injectors and map and tip. I have bigger injectors and 3 bar map and tip buy tune shop told me i need to get this problem fixed first cause they couldnt fix it with a tune.
- mikel
- Posts: 58726
- Joined: Tue Jan 16, 2007 1:17 pm
- Location: DiabloSport World Headquarters
- Contact:
RE: srt4 lt fuel -33 and st -20 any help
exhaust leaks?
bad O2 sensors?
bad O2 sensors?
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST
[email protected]
RE: srt4 lt fuel -33 and st -20 any help
Well the car has the 3 inch down pipe from turbo and then 3 inch to a turn down under car with no cat. There are no leaks as there is not much to leak. The upstream 02 has been replaced as thats the one i was aware that controled that. The other 02 as fare as i know is just for the cat whitch is not there. There are no codes in car. I am lost and dont know what else to check as i have checked everything i know of and some things twice. I cant even enjoy car or what the diablo will be able to do for car as it is not running right.
RE: srt4 lt fuel -33 and st -20 any help
Post a log using these PIDs: http://www.srtforums.com/forums/f384/wh ... og-484265/
include idle and part throttle cruising. Be sure the engine is fully warm and use the STOCK tune
include idle and part throttle cruising. Be sure the engine is fully warm and use the STOCK tune
Needless Torque Calibrations
www.needlesstorque.com
www.needlesstorque.com
RE: srt4 lt fuel -33 and st -20 any help
will do as soon as i get a chance as i can not get the driver to work on my computer so i have to use a friends
- ptperformance
- Posts: 61
- Joined: Mon Mar 30, 2009 5:54 pm
RE: srt4 lt fuel -33 and st -20 any help
How many miles on the car? You could have a plugged fuel filter/regulator. If you have a bad o2 sensor normally the ST fuel trims will not adjust so I suspect that is not the problem.
I see that this is a few months old so I hope that you got the problem fixed.
I see that this is a few months old so I hope that you got the problem fixed.