Got a p0343/p0341 code stalled will not start

Asked by Nov 28, 2015 at 11:38 AM about the 2003 Saturn L300 Base

Question type: Maintenance & Repair

I have replaced both cam and crank
sensors,both coil packs new timing belt,pull
it down to check timing marks,pcm
replaced 3mo's ago car was running fine
turned and stalled has fire but pushes
flames out intake. I've done everything in
the book to this car.what else can I check to
get car running again?

13 Answers


Sounds like cam jumped time, if it's shooting fire out of intake it's out of time


Cam or crank


Is it the v6

Yes it is V6. I replaced both sensors the crank and cam I checked all timing marks they line up the same as they did when I replaced the timing belt


I see why your puzzled lol head scratcher. The codes you have what are they

1 out of 1 people think this is helpful.

Did it back fire it's possible that the intake gasket went when it backfired if it did

The code is high volts on bank 1 bank 1/3/5 holes no back fire out the tail pipe

Has a 3 part intake if u take the outer parts off it pushes flames out .I would say timing if I didn't see the marks


Check your rockers pull off valve covers. If they are off it would do that through the intake


Something is off or out of time only reason to backfire through the intake. Cam could have broke has happened but not,likely

Best Answer

Went outside in the ice/rain and retired car inside to warm up let's hope this works all marks on belt and gears line up

Still pushing flames out the intake think that I may have some bent valves but would think u would hear them or see something on the top of the Pistons I've had all the plugs out and see no marks on them

I have word on this car in the ice/rain all this time the only thing I did was get wet and cold. I retired the motor. I did get it to quit pushing flames out the intake but it still will not run.Got a match I think that maybe thing to do with this car. I have built hundreds of motors but Saturn's with this V6 are a men's nightmare any help anyone can give l would be very thankful

Your Answer

Add photo

Related Questions


Looking for a Used L300 in your area?

CarGurus has 77 nationwide L300 listings starting at $2,100.


Search Saturn L300 Questions

Saturn L300 Experts

#1 Tom Demyan
Tom Demyan
Reputation 460
#2 dandyoun
Reputation 270
#3 tenspeed
Reputation 100
View All

Related Models For Sale

Used Saturn L-Series
425 listings starting at $1,999
Used Saturn ION
3 Great Deals out of 1,136 listings starting at $1,500
Used Saturn VUE
50 Great Deals out of 2,059 listings starting at $1,184
Used Saturn S-Series
731 listings
Used Saturn ION Red Line
28 listings starting at $1,900
Used Hyundai Santa Fe
286 Great Deals out of 20,046 listings starting at $2,275
Used Honda Odyssey
219 Great Deals out of 22,730 listings starting at $2,200
Used Ford Focus
555 Great Deals out of 57,033 listings starting at $1,095
Used Toyota Camry
1,019 Great Deals out of 90,645 listings starting at $650

Used Cars For Sale

2005 Saturn L300 For Sale
3 Great Deals out of 31 listings starting at $2,497
2004 Saturn L300 For Sale
46 listings starting at $2,100

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.