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05-26-2005, 08:44 AM
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#1 (permalink)
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Proven Member
From: Hercules, California
Registered: Feb 2004
Posts: 27
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ONLY getting 11.6 Miles per Gallon??? HELP
Hey guys my cars been acting up real bad. I am wondering if you guys could let me know of some things that could be wrong. My car is jumping from 1000 to 700 rpms when idle and I can hear the engine rumble from time to time. My gas mileage is REALLY Bad. I am only getting anywhere between 11-12 miles a gallon. I dont know what to do. My only upgrade is a Greddy SP Cat and boost gauge and turbo timer. Thankyou guys very much in advance. btw ( 98 eclipse gst auto)
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05-26-2005, 09:19 AM
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#2 (permalink)
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DSM Wiseman
From: New Cumberland, Pennsylvania
Region: Tri State
Registered: Dec 2002
Posts: 1,781
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Do you have a logger? If you do take a look at your FT's and you O2 voltage at idle and let us know what you find.
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- Nathan
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05-26-2005, 09:44 AM
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#3 (permalink)
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Proven Member
From: Hercules, California
Registered: Feb 2004
Posts: 27
Reputation:
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please forgive my ignorance, what is a logger? thanks
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05-26-2005, 09:53 AM
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#4 (permalink)
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Site General
Car: 01 Trans-AM WS6
From: Mesa, Arizona
Region: Southwest
Registered: Apr 2002
Posts: 8,212
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Moved to the newbie forum.
A logger is a device used to monitor engine functions.
www.pocketlogger.com is a more popular one.
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John-
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05-26-2005, 09:54 AM
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#5 (permalink)
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Site General
Car: 01 Trans-AM WS6
From: Mesa, Arizona
Region: Southwest
Registered: Apr 2002
Posts: 8,212
Reputation:
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How many miles are on the car.
The O2 sensor is probably shot.
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John-
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05-26-2005, 09:58 AM
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#6 (permalink)
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Proven Member
From: Hercules, California
Registered: Feb 2004
Posts: 27
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Yea thats what I was thinking, it has 109, XXX miles on it. There are two O2 sensors right?Umm would it be the O2 sensor in the front or the one in the exhaust?
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05-26-2005, 10:01 AM
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#7 (permalink)
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Site General
Car: 01 Trans-AM WS6
From: Mesa, Arizona
Region: Southwest
Registered: Apr 2002
Posts: 8,212
Reputation:
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The front one.
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John-
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05-26-2005, 10:08 AM
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#8 (permalink)
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Proven Member
From: Hercules, California
Registered: Feb 2004
Posts: 27
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Cool thanks man. Im going to take it to my DSM shop and have them check it out for me. I appreciate all the quick responses. Thanks guys!
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05-26-2005, 02:35 PM
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#9 (permalink)
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Proven Member
From: San Jose, California
Registered: Dec 2004
Posts: 111
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I have same issue but i cant get my damndid logger to connect ARGHGHGHGHG
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05-26-2005, 02:56 PM
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#10 (permalink)
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Proven Member
From: St. Paul, Minnesota
Region: Midwest
Registered: May 2005
Posts: 1,076
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I hae pretty much the ame problem + lack of power. I'm pretty sure mine is the TPS. It would be worthwhile to check that as long as your testing things.
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05-26-2005, 06:27 PM
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#11 (permalink)
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Proven Member
From: Woodbridge, Virginia
Registered: Mar 2003
Posts: 180
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I was having horrible gas mileage just like you were until I just replaced my spark plugs, wires, changed the oil, and replaced my upstream o2 sensor...my car only has 71k miles on it and my upstream o2 sensor was shot...$100 for a bosch o2 sensor from autozone.. it's most likey the problem for yourself.
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