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Old 04-19-2014, 11:16 AM   #1
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Help! engine stalling

Waddup!!!! ive never had to post a thread asking for help but i am at a loss right now. My focus has been shutting off after a few miles of driving it. When i come to a stop or slow down the car will start to idle really bad then die. Also, when i go to accelerate, the car seems to choke and bog down until the gas peddle is released then continues to drive normally.

I have changed:
fuel pump
fuel filter
iac valve
egr valve
maf sensor

I changed all these parts due to a mechanic friend looking at the car and advising me those things were wrong with it. Unfortunately, i am at the point where i no longer have money just to throw at it. I need some help on where to start to diagnose to get this car figured out lol. i am about ready to drive it off a cliff haha. any help would be greatly appreciated.


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Old 04-19-2014, 11:41 AM   #2
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Moved to "General Technical Chat".
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Old 04-19-2014, 03:08 PM   #3
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Hi. Here are 4 items to inspect;

1- Spark plug health and proper gap set.

2- Wiring health leading into (and right at) the ign coil. These wires are often bent, pinched or damaged. I am not talking about the bigger spark plug wires.

3- Spark plug wires.

4- The ign coil. Inspect the coil very closely and look for hairline cracks. Cracks or no cracks, the coil can be faulty and cause the problems you are having.
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Last edited by Marde; 04-19-2014 at 03:40 PM. Reason: wording edit on item 2
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Old 04-19-2014, 04:48 PM   #4
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I'll add checking the PCV hose. When that gets soft & collapses, or has a hidden crack/hole, it can affect idling & low throttle operation badly.
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Old 04-19-2014, 06:49 PM   #5
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I'm going with this mechanic friend not being a very good one ...


Throttle Position Sensor is my vote. It's the one part that can mimic symptoms for problems with all of those you just replaced.

A simple "Sweep Test" will confirm if the TPS is dead or not.

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