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What would cause this?

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Old Nov 30, 2013 | 10:26 PM
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lildaddym's Avatar
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Default What would cause this?

Got in the XFire this AM, started it up...seemed to take a couple of extra revs to get it started...let it idle for about 30 seconds, shut if off, restarted it, let it idle about 2 minutes, then headed out of the complex. I get to the street, and give it what I call a 'normal' amount of throttle, and it felt totally different (always wondered how you guys got to burn rubber!) Then, when I got the the light, it sputtered for about two seconds, then ran normally again, except for the gas mileage, which Torque was indicating was off...
 
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Old Nov 30, 2013 | 10:34 PM
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Default Re: What would cause this?

bad gas? too much ethanol in the gas? Did you fill up recently?
 
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Old Nov 30, 2013 | 10:57 PM
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Default Re: What would cause this?

Filled up a couple of days ago...used 104+ octane booster...no problems until now...maybe that's it, though!
 
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Old Nov 30, 2013 | 11:56 PM
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Default Re: What would cause this?

"A little off" was my first clues to the CPS going out.. not saying that is your case.. but hope you have a spare ready to go.. :-)
 
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Old Nov 30, 2013 | 11:59 PM
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Default Re: What would cause this?

Mr.Miata...I don't, yet...but I will...recommendations?
 
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Old Dec 1, 2013 | 12:05 AM
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Default Re: What would cause this?

Originally Posted by lildaddym
Mr.Miata...I don't, yet...but I will...recommendations?
Gotta get the Bosch, just about anything else will result in problems. They can be found at Amazon for about $40. I don't have the PN handy but a search will turn it up.
 
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Old Dec 1, 2013 | 06:38 AM
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Default Re: What would cause this?

Originally Posted by lildaddym
Mr.Miata...I don't, yet...but I will...recommendations?

I just bought this one.


Mercedes Benz Crankshaft Position Sensor Bosch 0261210170 0031532728 | eBay


No problems with my OEM CPS yet but I know it is just a problem waiting to happen . . .
 
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Old Dec 2, 2013 | 11:38 PM
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Default Re: What would cause this?

Got the spark plug wire that was loose on the back passenger side (the hard one!) put back on properly...seems to be running OK, except for what seems to be some shakin' going on under the hood when the car is in drive and idling (I was checking the transmission fluid).
 
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Old Dec 3, 2013 | 12:53 AM
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Default Re: What would cause this?

vacuum leak maybe...look for any hoses loose....
 
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Old Dec 3, 2013 | 12:58 AM
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Default Re: What would cause this?

Originally Posted by oledoc2u
vacuum leak maybe...look for any hoses loose....
Thanks for the tip...I will have to look around...car seems to run OK, and I don't hear any noises coming from under the hood.
 
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Old Dec 3, 2013 | 08:57 AM
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Default Re: What would cause this?

Originally Posted by lildaddym
Thanks for the tip...I will have to look around...car seems to run OK, and I don't hear any noises coming from under the hood.
You know if you do have fuel problems...running it out of gas does tend to heat up a fuel pump since the fuel is actually used to keep the pump cool. You may have damaged the pump...but right now, it sounds like it may be something simple. But I would keep that in the back of my mind if it doesn't iron itself out. I would change the fuel filter and the pump at that point. Good luck...
 
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Old Dec 3, 2013 | 09:40 AM
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Default Re: What would cause this?

Hopefully I didn't damage anything...that pump is only a few months old.
 
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Old Dec 3, 2013 | 11:44 PM
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Default Re: What would cause this?

Originally Posted by lildaddym
Hopefully I didn't damage anything...that pump is only a few months old.
Well, the good thing is, it isn't in the tank like some are, but they will still heat up, and pick up all the crud left on the bottom the tank...so, you never know...
 
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