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99 Gtp problems (stalling while driving)

titanfan12

titanfan12

New member
Hi as you read from the title yes ive been haveing this problem for quite sometime now, the first thing is when im driving it just dies out of random theirs no telling when it will die. im very frustrated with this problem.
things i have replaced (knock sensor,fuel pump,maf sensor,igniton module,supercharger,Egr valve,cat converter,mufflers)
any help is really apprecatied because this is quite a pain
 


the alt and battery have just been replaced but i will go look at the rest because it may be the o2 sensor but what excatly will the o2 sensor do because it only stalls after being ran for like 15+ mins never right when i start it
 
There's an O2 sensor test that takes about that long, so that could be it. The o2 sensor reads the air/fuel ratio and corrects the air intake via the pcm as necessary. It will be the one in front of the cat, the one after the cat just ensures the cat is functioning properly and does not change the afr.
 


You'll need an o2 sensor wrench. Autozone sells them for around $8. If you've got one of those, maybe half an hour.

You just unplug it, jack the car up, unbolt it from the downpipe, bolt the new one in (without touching the head of the sensor) then plug it in and lower the car. **Let the car cool before you do this to prevent exhaust burns**

Is your check engine light on? Most of the time a bad o2 will throw a code.
 


lol I was suspecting the crank sensor and was asking if you checked it. Probably should have read all the post first lol carry on
 
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