2G Sputtering issues while driving

[ohlegend]

I have been having a problem recently where I will drive my car, then in about 3 miles the cars looses power starts sputtering and backfiring and then dies and will not restart. I have done this twice in 2 days.
I start from my house, drive a 1/2 mile then turn right, drive a mile, stop at a stop sign, turn right and drive for 1.5 miles into town. I turn right and drive about 1/10 of a mile and it starts sputtering and backfiring. It starts off driving fine, then it just starts acting up....I'm lost
After the first incident, I went out to the garage the next morning and it starts right up. ???
Any ideas?

 

[Dsmkauai]

Boost leak test. Check for cracked manifold or turbine housing possibly causing a leak. When's the last time it was tuned up? And check engine light? Also make sure the maf and cas are plugged in properly.

 

[rough]

If you have trouble restarting, unplugging the maf will get you to restart and limp home, which means a intercooler pipe probably separated or a coupler is cracked. The pipe in the passenger wheel area is often the culpret.

 

[ohlegend]

Ok I will check my cel and check all ic piping. The car started having issues at the same point on my trip both days. Seems like a fuel or air issue

 

[rough]

Most of the time its thankfully air issues

 

[inthemidst]

After you check boost leaks and connectors and a tune up do a compression test.

 

[2fast2evo]

Definitely an airflow problem. Running rich is telltale.

 

[ohlegend]

I forgot to add for the 3 miles I am mostly accelerating 70-80mph and when I get into town I am running 45mph down to 25. When I am slowing down, this is when I am having my issues. IDK if this helps at all or anything...

 

[ohlegend]

Could this be a faulty front o2 sensor? I haven't had the best of luck with o2 sensors. It seems that it is getting up to operating temp and then having the issues at low speed similar to this thread : http://www.dsmtuners.com/threads/car-sputters-after-warm-up.373615/

 

[952g63t]

Check for any fault codes yet?

Could this be a faulty front o2 sensor? I haven't had the best of luck with o2 sensors. It seems that it is getting up to operating temp and then having the issues at low speed similar to this thread : http://www.dsmtuners.com/threads/car-sputters-after-warm-up.373615/

Check for any fault codes yet?

 

[ohlegend]

Im trying to obtain an obdII reader...

Im fairly certain that I had that code a while back (front sensor heating element code)

 

[ohlegend]

So I played a bit with my odbII bluetooth scanner and found that once the engine reached the optimal temperature and went into closed loop, Bank 1 Sensor 1 died and went to 0.0v. It was reading 4.3v or somewhere in there until closed loop. The car (just sitting idling) started sputtering and died because it flooded its self. I was also monitoring engine load, MAS, TPS, RPM, coolant temp, and like I said Bank 1 Sensor 1. I also pulled 2 codes P0130 and P0135 - both of which refer to bank 1 sensor 1. So it is pretty safe to say that my upstream o2 is dead. Time to buy a denso!

 

[ohlegend]

So i replaced my o2 sensor with a Denso OEM sensor. I started it up today and it ran longer, but it still hit the same issue. It went into closed loop and flooded its self out. It sat and idled great at 850rpm for 20 mins no issues at all. then it got up to 98C (208F) and then is started stuttering and stalled out. I knew what was happening just before it started the problems because I could smell the gas. I watched fuel trim from bank 1 sensor 1 (upstream o2) the entire time. It stayed at 4.7% then went to 0 just before it died. Any help here would be great. I also unplugged the MAF right after and the car swouldnt start. Thanks

 

[Dsmkauai]

Check crank and cam sensors and wiring.

 

[2fast2evo]

Maybe check the coolant temp sensor? A faulty temp sensor could make you run rich. http://www.dsmtuners.com/threads/how-to-diagnose-a-no-start.217951/ Or maybe check for an exhaust leak at the downpipe as well, that could affect O2 readings http://www.wi-dsm.com/forum/showthread.php?t=5917

 

[ohlegend]

Thats a great idea. I will check my elbow and downpipe

 

[Slav]

Would an O2 senso in the exhaust system cause the car to not start?

 

[ohlegend]

No when starting the ecu is in open loop and does not take any readings from the o2 sensor from what I understand

 

[inthemidst]

Last thing is the ecu itself.

 

[Slav]

Ok thanks