Trouble with keeping the car running

[hubz91talontsi]

I was on my way to school today and i was pulling to a stop sign and i put in the clutch..Car died..Tired and tired but keep dieing, got it started went back up without clutching and got brothers stealth. After school i checked battery and alternator both good im guessing battery was at 12.5v and alternator was at 14v. Not sure if 14v is good since its suppose to be in amps. But i need some help i don't know whats going on. I just started car and now its running and idleing fine.

Edit: Forgot to say that i had some bad o2 sensors not sure if those some into play or not.

 

[hubz91talontsi]

Anyone have any ideas? I really need some answers

 

[marsh63]

mine started to do that today after my mom put 87 octane gas in it. if it is the same problem as mine it only dose it when it is all the way warmed up?

 

[ChunkyLover53]

Does the car stumble on a cold start, or does it idle smooth and correctly?

 

[GVR4592]

mine started to do that today after my mom put 87 octane gas in it. if it is the same problem as mine it only dose it when it is all the way warmed up?

Low octane fuel wouldn't cause those issues.

 

[marsh63]

well the only time it dose that is when someone puts low octane in it.

i also had it do that when my tps and oxygen sensor went bad.

 

[GVR4592]

well the only time it dose that is when someone puts low octane in it.

i also had it do that when my tps and oxygen sensor went bad.

I don't think I should respond to that one.

 

[hubz91talontsi]

Yes it seems like it only does it when the car gets warmed up and i then i put the clutch in. More ideas please =D

 

[GVR4592]

If it's temperature related, I would check the coolant temperature sensor first. Try to get some more descriptive symptoms, it will help in the diagnosis.

 

[hubz91talontsi]

How would i check this 'coolant temp sensor'? Im getting nothing on my dash but the check engine light which is my o2 sensors. I don't know how else i can explain it. When im pulling up to a stop light/sign the rpm jump around a little then drop all the way. When i say jumping i mean low not past idle. Well at the stop light everytime i would try to start it back up it would just turn off again. So i was guessing it was the battery but that is fine now. More suggestions please.

 

[GVR4592]

A vacuum leak could cause that. Is your bov vented to atmosphere?

 

[hubz91talontsi]

I think, i just have the stock 2g bov, but im pretty sure it just vents. The hose from the bov to the manifold is still connected. What leak am i looking for?

 

[snowborder714]

I think, i just have the stock 2g bov, but im pretty sure it just vents. The hose from the bov to the manifold is still connected. What leak am i looking for?

If you still have the hose from the bov to the intake, then you're recirculating.

I would suggest doing a boost leak test (at the turbo inlet and at the throttle body). Also, check your grounds coming from the battery (1 to the firewall and 1 to a bolt in the tranny/starter). And check the wires going to the positive terminal (4 fuse box wires and the one from the starter, which is most likely connected to the terminal clamp). Check for looseness is any of these, especially on the battery terminals. Also check for corrosion.

Also, check the spark plugs just to make sure they're not fouled.

 

[hubz91talontsi]

What does boost leak have to do with my car dieing..I knew i was going to get some of these. What does the recirculation of the bov do? Just wondering get any louder when you take that off?

 

[snowborder714]

What does boost leak have to do with my car dieing..I knew i was going to get some of these. What does the recirculation of the bov do? Just wondering get any louder when you take that off?

A boost leak will cause it to sputter (or die, if big enough). This is because the mass airflow sensor reads that a certain amount of air is being sucked into the engine and it automatically calculates how much fuel it should put in. If you're venting improperly, or have a boost leak, then it already accounted for that air (since the recirculation tube is behind the mass airflow sensor) that you're putting back into the atmosphere or are leaking. So when you're recirculating, that tube takes all the air that the bov releases and puts it back into the intake pipe since it's already accounted for.

And yes, the bov will be louder if you vent it. But DO NOT take it off unless you have the proper equipment and setup to do so.

To GVR4592: I didn't think it'd be this soon after we discussed venting that we'd get someone interested in it

 

[hubz91talontsi]

Well if your talking about fuel getting to the motor..Have anything to do with my o2 sensors? I just dont understand how it would just start doing that. I havent changed anything.

 

[snowborder714]

I'm really not sure if an O2 sensor would cause that or not. Do you know for sure your CEL is just your O2 sensor? And if so, why not get a new one and see what happens?

 

[hubz91talontsi]

There is 2 problems i dont have the code for the second. And i dont have an obd2 sensor. One of the problems one o2 sensors. And i cant just get another i need it redrilled. Then reinstalled.

 

[GVR4592]

I still think his is vented to atmosphere because of what he said in his previous post.

The hose from the bov to the manifold is still connected. What leak am i looking for?

He said bov to manifold, indicating the vacuum line, not the recirculation tube.

hubz91talontsi There should be a rubber hose coming from the blow off valve and recirculating back into the intake pipe that is connected between the turbo and mass airflow sensor(maf).

I uploaded a pic of the rubber hose I'm talking about.

Here's a link for making a boost leak tester.

http://vfaq.com/mods/ICtester.html

Is this car a 2g or a 1g?

 

[snowborder714]

I recommend going to your local Auto Zone or Advance Auto Parts and have them read the codes for free. Then post them up here.

And why do you need to get it redrilled and reinstalled? Also, which sensor is bad (or is it both)?

 

[hubz91talontsi]

Its a 2g but yeah i noticed a hose with a similar clip around it. Looked good to me. I dont believe have those blue hoses? Is that a meth kit?

 

[snowborder714]

Its a 2g but yeah i noticed a hose with a similar clip around it. Looked good to me. I dont believe have those blue hoses? Is that a meth kit?

A meth kit? WTF

No, those hoses go to his coolant overflow bottle. A meth kit would be up at the throttle body elbow.

 

[hubz91talontsi]

Im pretty sure both sensors are bad but my sensor in my megan downpipe is facing the ground '\' And i hit it off something im guessing

 

[hubz91talontsi]

Im new to this OK! =D Im learning. A friend of mine has his meth kit in his washer fluid tank. He has a 1g.

 

[snowborder714]

Im pretty sure both sensors are bad but my sensor in my megan downpipe is facing the ground '\' And i hit it off something im guessing

Then yes, you'll need to get that fixed. It shouldn't be anywhere below 3 and 9 (in relation to a clock).

I was just giving you a hard time about the meth kit.

Here's a good place to get new O2 sensors - http://www.automedicsupply.com/