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Old 07-31-2013, 03:20 PM   #1
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power loss?

when i start my car after sitting a while i always let it sit and warm up so that the oil is not so thick... after doing that for ab 5 mins when i go to drive the car it runs like a top really strong like its a brand new mustang.... shortly after starting to drive it i can notice a loss in power it seems like it looses power by half. also have noticed decrease in mpg. i would really like to have my car back and not just half the power any help with this would be appreciated

cold air
exhaust
new motorcraft plugs
fuel filter
diablo tuner
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Old 07-31-2013, 03:22 PM   #2
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Tune could be the issue.

After the car is fully warmed, like when it starts to lose power, what is the voltage from your alt and from you bat?

Are you getting a check engine light or did you disable that?

Dump your codes
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Old 08-01-2013, 08:36 PM   #3
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Quote:
Originally Posted by Billymich View Post
Tune could be the issue.

After the car is fully warmed, like when it starts to lose power, what is the voltage from your alt and from you bat?

Are you getting a check engine light or did you disable that?

Dump your codes
What do you mean dump your codes? And no I don't have a check engine light on and the volts seem to be fine the needle is in the same place it always is
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Old 08-02-2013, 12:54 AM   #4
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Sometimes the computer holds codes but does not light up the check engine bulb
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Old 08-02-2013, 01:05 AM   #5
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Do u use the A/C
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Old 08-02-2013, 05:10 AM   #6
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Sometimes the computer holds codes but does not light up the check engine bulb
And I can dump them using my programmer or what?
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Old 08-02-2013, 10:56 AM   #7
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What programmer you got? And stock gauges aren't always the most accurate lol
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Old 08-02-2013, 04:16 PM   #8
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What programmer you got? And stock gauges aren't always the most accurate lol
It's just a diablo programmer nothing fancy
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Old 08-02-2013, 08:08 PM   #9
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I'm kinda thinking it is coils or injectors reason being... 1 they are both heat sensitive 2 the coils are original 3 I have 19 lbs injectors with k&n intake full exhaust and 109xxx miles on a tune 4 both would cause the issues that I am having. That being said I'm also wondering if It could be my mas I know all sensors run on a closed loop running off starting up memory when it is cold once the car is warm it will run on it's own sensor reading that could throw off fuel ratio for sure. There are just so many options I have no clue and really don't have the money to thro injectors coils and start throwing new sensors at it. I wish but yeah lol any help is appreciated!
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