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2004 Rx8 Stalls in the Highway

Old 08-31-2010, 07:43 PM
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NY 2004 Rx8 Stalls in the Highway

I have posted this before:

Hey all, so I have a 2004 rx8 with about 78k miles. While driving on the highway for about 20 mins, when I have to brake and slow down, the RPM needle goes down to the idle state than the car would automatically shut off. I would have to wait a minute or two before starting the car again and it takes sometime before the car could idle properly (The car struggles to stay on)

Since than, I have checked the Coils, fuel pump and change the CAT. The car is still having the same issues. I was told to check the MAF and compression of the car.

I was planning to buy a MAF online to replace my older one because I saw another thread which had the same issues as my car. Once they changed the MAF, it fixed the problem entirely. Any other suggestion will be grealty helpful.
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Old 08-31-2010, 10:42 PM
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I think its better to check your MAF before you throw that 100 something bux out, and you might end up with nothing.

Last edited by nycgps; 08-31-2010 at 10:45 PM.
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Old 09-01-2010, 10:33 AM
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Given what you've already done, i say clean the MAF first with a spray cleaner available at any auto parts store, or like walmart.

if not, get the compression check, you might need a new engine
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Old 09-01-2010, 11:48 AM
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Thanks guys, I will take a look at the MAF, hopefully that will fix the issue
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Old 09-01-2010, 03:43 PM
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A member here named Klepto also had the same problem...though IDK if he ever found what was causing it....try sending him a PM
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Old 09-02-2010, 12:39 AM
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I HAVE THE SAME ISSUE...cleaned the maf sensor and throttle body...its a little better but still vibrates a little and shuts off only when i go in reverse after long time of driving it and when i have the ac on...weird!! missing the rear o2 sensor...just ordered it, hopefully it will fix the problem...
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