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Troubleshooting

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Old 12-29-2007, 01:18 PM
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Running Rich, Sluggish, No misfire

Recently I noticed that after I drove only 100 miles that half of my gas tank was already empty, the car is running a little sluggish and when I am driving and put the car in neutral I notice that the dash lights dim a little and when I put it in gear light up again. At first I thought it was a bad coil pack making me run rich but then again my car doesnt shake or misfire. I recently changed the spark plugs about 2000 miles ago with denso iriduims so thats not the problem. Any Ideas?

Last edited by Reket; 12-29-2007 at 01:57 PM.
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Old 12-29-2007, 02:11 PM
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any CELs? also im pretty sure it has to do primarily with your running rich issue. was the car running rich before you put the plugs in? any issues with the maf? maybe your o2 sensors? there are many variables. we need a bit more information.
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Old 12-29-2007, 02:55 PM
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Calculate your true MPG on 1 full tank, then report back.
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Old 12-29-2007, 06:23 PM
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11.4 Mpg...im getting Hummer MpG without the cool hummer look! The car was not running rich before, I got 300 miles to the gallon before now im lucky to see 200 no CEL either

Last edited by Reket; 12-29-2007 at 08:07 PM.
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Old 12-29-2007, 08:09 PM
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Originally Posted by Reket
I got 300 miles to the gallon
That’s a little high.
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Old 12-29-2007, 08:13 PM
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Originally Posted by Reket
11.4 Mpg...im getting Hummer MpG without the cool hummer look! The car was not running rich before, I got 300 miles to the gallon before now im lucky to see 200 no CEL either
Is that a new Hybrid or something ? like a tesla roadster?
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Old 12-29-2007, 10:22 PM
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Originally Posted by NmexMAX
That’s a little high.
uhhh no, that's a lot high. Could be O2 sensors, coils, get the codes and go from there.
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