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-   -   exhaust mod drives range indicator crazy (http://www.the370z.com/intake-exhaust/74918-exhaust-mod-drives-range-indicator-crazy.html)

danelonson 08-06-2013 06:36 AM

exhaust mod drives range indicator crazy
 
I have been running with the washers mod for the last 4 months and love the sound however, i have noticed that the mile range indicator under the led lights got allot less accurate. Before the washer mod it was somewhat accurate now it's way off. Sometimes goes down then up i can't rely on it anymore. My question is why does the exhaust leak cause this?

GaleForce 08-06-2013 07:00 AM

Because the new exhaust fumes affect your vision and judgement?

Sh0velMan 08-06-2013 07:04 AM

Quote:

Originally Posted by danelonson (Post 2434123)
I have been running with the washers mod for the last 4 months and love the sound however, i have noticed that the mile range indicator under the led lights got allot less accurate. Before the washer mod it was somewhat accurate now it's way off. Sometimes goes down then up i can't rely on it anymore. My question is why does the exhaust leak cause this?

It's not the exhaust, it's the driver.

Chuck33079 08-06-2013 07:41 AM

Quote:

Originally Posted by danelonson (Post 2434123)
IMy question is why does the exhaust leak cause this?

It doesn't. You're putting your foot in it more to hear your exhaust leak and that's why your range display is going nuts. If you drive the way you used to, it will behave like it used to. Coorelation does not equal causation.

kenchan 08-06-2013 07:47 AM

Quote:

Originally Posted by danelonson (Post 2434123)
Sometimes goes down then up i can't rely on it anymore.

did you add fuel? cause then, it goes up usually... then comes down later.

danelonson 08-06-2013 08:55 AM

To be honest i feel like I'm driving the same and not faster to hear the exhaust. Can it be that since i lost bottom end power I'm giving more gas to compensate for the loss in torque?

Chuck33079 08-06-2013 08:56 AM

No, there's no way the exhaust leak has any measurable effect on mpg.

Spikuh 08-06-2013 08:57 AM

Quote:

Originally Posted by danelonson (Post 2434260)
To be honest i feel like I'm driving the same and not faster to hear the exhaust. Can it be that since i lost bottom end power I'm giving more gas to compensate for the loss in torque?

It is purely your driving habits.

That is all.

Elan 08-06-2013 09:57 AM

When has that indicator ever been accurate? I recall jumping from 60ish down to 30 within 10 minutes.

kenchan 08-06-2013 10:10 AM

i can still see the scratch.

Spikuh 08-06-2013 10:40 AM

Quote:

Originally Posted by Elan (Post 2434357)
When has that indicator ever been accurate? I recall jumping from 60ish down to 30 within 10 minutes.

It is very accurate if you have good throttle control, but that's the thing....you have to have good control.

Elan 08-06-2013 12:16 PM

Quote:

Originally Posted by kenchan (Post 2434378)
i can still see the scratch.

Scratch? I don't know what you're talking about! :tup:

Quote:

Originally Posted by Spikuh (Post 2434412)
It is very accurate if you have good throttle control, but that's the thing....you have to have good control.

Really? When I turn off my car, it will say about 124 miles. A few hours later, turn it back on and its down to maybe 90. It just doesn't seem that accurate to me. I don't rely on it because gaugology-101 tells me not to trust it. I just fill up when I have about 3 dots left. Hasn't failed me yet!

Chuck33079 08-06-2013 12:19 PM

Quote:

Originally Posted by Elan (Post 2434580)
Really? When I turn off my car, it will say about 124 miles. A few hours later, turn it back on and its down to maybe 90. It just doesn't seem that accurate to me.

Is the car cooling off enough to be back in the cold start enrichment part of the map? That would explain the difference.

I don't rely on mine since it's way off with larger than stock injectors. I just use the trip meter every time I fill up. When I was stock, though, the range indicator was fairly accurate.

Elan 08-06-2013 01:24 PM

Quote:

Originally Posted by Chuck33079 (Post 2434593)
Is the car cooling off enough to be back in the cold start enrichment part of the map? That would explain the difference.

I don't rely on mine since it's way off with larger than stock injectors. I just use the trip meter every time I fill up. When I was stock, though, the range indicator was fairly accurate.

Hmm could be. I need to start using the trip meter too. Good idea. :tiphat:

Spikuh 08-06-2013 02:12 PM

Quote:

Originally Posted by Elan (Post 2434580)
Really? When I turn off my car, it will say about 124 miles. A few hours later, turn it back on and its down to maybe 90. It just doesn't seem that accurate to me. I don't rely on it because gaugology-101 tells me not to trust it. I just fill up when I have about 3 dots left. Hasn't failed me yet!

I have noticed the same thing, but it always jumps back up once I start moving again. I think it calculates the remaining distance based on driving habits of the last few minutes/miles or something to that effect. I have nothing to back that assertion up beyond what I have observed, but it seems to work along those lines. This seems to make it easy to manipulate by doing crazy throttle changes or a lot of stop/start, but for longer trips where you are moving at a more constant speed, it's pretty spot on.


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