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Having Problems Need Help


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Originally posted by "swopey"

 

Ok, lets start off with the basics.

I have a 2003 Mazda 6S automatic (manumatic or whatever they call it)

It has an Injen CAI with the CP-E mass airflow customizer (to stop CEL'S)

and a cat back Magnaflow Exhaust

 

The problem is this. the car will shut off for no real reason. it happens mostly when i hit a nice dip in the road, or turn a hard corner. It also happen more often when the car has been driven for a longer time period, like over a 1/2hr in city type traffic.

 

I have no earthly idea what could be causing it, i took it to the local deaership where i bought it and they can not seem to figure it out. They say they may have fixed it, but whatever they did stopped it from happening as much on smaller bumps where it was happening before, but it still does it.

They tell me the only solution for them would be to take off the CAI and CP-E MAC and turn it to stock so they can get an accurate reading on their diagnostic machines. My only problem with that is that if they remove the CP-E unit, i have no instructions on how to re-install it if they find the problem and it has nothing to do with the CAI and it's parts. I can easily reinstall the CAI, but without the CP-E unit the check engine light will stay on all the time.

 

Anyone ever heard of a problem like this one, and what may be causing it. Worst case, i will let the dealer do what they need and turn it back to stock. But then i'm out $500 plus the repair costs. Because it is very dangerous to have your car shut off while driving down the road. I have to jam it in Neutral, start it back up then jam it back into drive before i get slammed. Plus i have to U-turn across a 2 lane highway every night to get to my house and if it shuts off there i'm toast!

 

response by "crossbow"

 

Throttlebody. Replace it, problem leaves.

 

Who:

Mainly effects Mazda 6s V6's.

 

Problem:

The electronic throttle body errors on an expected value. The value exceeds the acceptable limit, and the throttle body resets to its default position (closed). This can cause an immediate stall, or engine kill, depending on speed, position, etc.

 

This can also throw a number of cels (which helps identify the problem), but may not, because the shutoff occurs faster then the code can be thrown.

 

Sometimes the car can be restarted, and the problem may or may not return.

 

Solution:

There is no offical TSB or MRI on this issue. Thus getting repairs and replacements may be difficult. The quickest fix is just resetting the neg battery cable (if you get stranded on the side of the road....you do have a 10mm socket and wrench right?), but the actual fix is to get a throttle body with one of the following codes.

 

The codes are the last two letters on the casting number, which is on or near the black plastic of the throttle body.

 

"BB" or "AA" or "AB"

 

These particular revisions have not yet had an incidence of the problem. As mentioned though, getting these particular TB's will be difficult, but I'm presenting the information regardless for owner benefit.

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