simptoms..

JASonic · August 23rd, 2008, 03:30 PM

Loss of power. Loss of about 20% gas mileage.

My plugs are only 10,000 miles old. Air filter just cleaned. Fuel filter replaced 25,000 miles ago.

I know that the header or mid pipe is cracked and I have yet to take it back to the dealer to get it fixed right. I dont think this has anything to do with it but I thought it would be worth mentioning.

I have also tried different setups on the xcal to see if it would correct. Ive tried all the different octane levels combined with normal and economy strategies. On that note, when I first got the xcal, my mileage increased and the power did too so I dont think it has anything to do with the tuning.

Any ideas?

whitemustang02 · August 23rd, 2008, 04:28 PM

the exhaust leak does cause some of that, but shouldn't be as drastic as what you are describing, so it sounds like it is coupled with something else. as for what the secound thing is i really have no idea.

ItaliStang · August 23rd, 2008, 07:33 PM

bad o2 sensor?

MIA · August 23rd, 2008, 07:56 PM

Originally Posted by ItaliStang

bad o2 sensor?

doesnt that usually throw a code?

94v6blkndred · August 24th, 2008, 12:04 PM

check your PCV valve?
change your oil recently? haha
even though they are new id go through and check the plugs...new doesnt always mean good ya know.

MamaStang · August 24th, 2008, 12:08 PM

You know it's funny you mention that - I've noticed a drop in my fuel efficiency too. Suppose they are monkeying with the gasoline to make a bigger profit? I don't know shit about engines though.

August 23rd, 2008, 03:30 PM	#1
JASonic The George Forman of Keepers Join Date: Feb 2007 Posts: 2,243	simptoms.. Loss of power. Loss of about 20% gas mileage. My plugs are only 10,000 miles old. Air filter just cleaned. Fuel filter replaced 25,000 miles ago. I know that the header or mid pipe is cracked and I have yet to take it back to the dealer to get it fixed right. I dont think this has anything to do with it but I thought it would be worth mentioning. I have also tried different setups on the xcal to see if it would correct. Ive tried all the different octane levels combined with normal and economy strategies. On that note, when I first got the xcal, my mileage increased and the power did too so I dont think it has anything to do with the tuning. Any ideas? __________________ GHOSTANG 2230

August 23rd, 2008, 04:28 PM	#2
whitemustang02 MM's official Chevy guy 2002 Mustang V6 Join Date: Sep 2007 Location: Rochester, NY Posts: 1,993	the exhaust leak does cause some of that, but shouldn't be as drastic as what you are describing, so it sounds like it is coupled with something else. as for what the secound thing is i really have no idea. __________________ "Speak softly and carry a big stick" - Theodore Roosevelt "Any idiot can make a V8 fast, it takes a real idiot to make a fast V6". '02 Mustang N/A 4.3 stroker away for winter '72 Chevelle project car 454 coming '93 Bronco EFI 351W DD

August 24th, 2008, 12:04 PM	#5
94v6blkndred Hardcore Enthusiast 1994 Mustang v6 slower than your average snail Join Date: Mar 2007 Location: Houston, TX Posts: 1,114	check your PCV valve? change your oil recently? haha even though they are new id go through and check the plugs...new doesnt always mean good ya know. __________________ XBOX TAG- DioMurksAll 1994 V6. red interior, black w/red side/hood scoops and taillights.CAI,Custom X pipe w/FORCE mufflers, 3:73's

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