Car has sat for one year,ran when parked, turns over and can smell gas. when key is in on position the service engine soon light and service engine with "wrench" light is on .when parked the automatic door locking was not working. Any suggestions? thank you Brett
Because the engine turns over means your started had enough voltage to turn ON. You can easily test the voltage on the battery with a volt meter. It should be about 12.0 Volts when the engine is not running. Batteries should normally be charged every few days for about 1/2 hour each time. You can go a short time for a couple of weeks without charging as long as you don't get in to a habit of doing that. If you went for months without running your car; I assumed you had to replace the battery already or your battery would not have been able to turn over the engine or hold a charge.
The automatic door locking is the least of your problems. It might be your car did not have a battery of proper voltage for an extended period of time.
Gasoline does not age well if you did not place any additive for prolonged storage. Even the additive for prolong storage says about a 6 month period. Maybe you should take out some gasoline from your tank to see if it still looks good. I normally don't fill my tank but every 1 to 2 months (without a problem) with no additive added, but 1 year is a long time. My guess is 1 year old gasoline may have changed over time and thickened and it could have contaminated your fuel system.
Depending on how old and how much fuel is in the tank can affect your next step. If the fuel is the problem; you will have to drain the tank and possibly have someone use one of the pressurized fuel cleaning treatments. You might need a new fuel filter, and I know there is a pressure regulator to return the fuel to the tank as well as fuel injectors and the fuel rail. I have never had gasoline that old, so you might need a professional mechanic if you are dealing with old fuel in the system.
The only gasoline I trust to age over time is Coleman fuel in a sealed container (also known as white gas). This can be found where they sell outdoor camping equipment. I don't know if that will help, but I had to run 1 gallon of this in 1992 Oldsmobile 88 because there was no gasoline. Coleman fuel is ultra refined gasoline without the extra additives they normally put in gasoline.
SOURCE: 1996 Saturn won't start- engine turns over
OK I don't know if this is your problem but my 92 sl2 is kinda the same way. my sl2s ECTS went out and it dose the same this is what it looks like
you will have to remove the air duct to get to it and this is were it's located keep in mind there are two of them you want to unplug the one with two wires it is lower on the block. but do not remove it. 
after unpluging it try starting your car if it starts them you will have to get a new ECTS Coolant Temp Sensor. btw don't drive around with it unpluged just becouse it runs dosen't mean you should use it like that.
SOURCE: 99 Saturn SC1 ''Service engine soon'' light is on.
Did you get the code that triggered the SEL? If you know that, it will be easier to diagnose your problem. You can do it without a tool on the old saturns. Just need a paperclip. :
Use a paper clip to jumper Terminal A and B of the ALDL *Assembly Line Diagnostic Link* which is above your left knee.
Terminal A is an interal ground and is the top right terminal in the
connector. Terminal B is directly adjacent and to the left of Terminal
A.
Turn the ignition to ON.
All codes are 2 digits between 11 and 99. Codes are displayed on the
SES light by flashing the light with short and long pauses to
distinguish digits of one code from digits of another. The short pause
is used between digits of the same code, long pauses are between codes.
Also, each code is flashed three times before going to the next code.
For example, the sequence of code 12 will be: flash, pause,
flash-flash, long pause, then repeat 2 times. If Code 12 is not
displayed, the self-diagnostic pogram i snot functioning properly.
If only Code 12 is displayed, no system malfunctions have been stored.
Any existing system fault codes are displayed in order from low to high, except for Code 11.
On vehicles with an automatic transaxle and on which exist stored
transaxle codes, Code 11 will be displayed last, then the SHIFT TO D2
light will begin flashing transaxle codes of flags.
When all engine codes have been displayed, Code 12 will flash again.
Diagnostic Codes
11. Transaxle Codes present
12. Diagnostic System Check
13. Oxygen sensor, circuit open or not ready
14. CTS circuit, out of range high
15. CTS circuit, out of range low
17. PCM fault, pullup resistor
19. 6x signal fault, no 6x signal between reference pulses
21. TPS circuit, out of range high
22. TPS circuit, out of range low
23. ATS circuit, out range low
24. VSS circuit, no signal
25. ATS circuit, out or range high
26. Quad Driver output fault
32. EGR system fault
33. MAP sensor circuit, out of range high
34. MAP sensor circuit, out of range low
35. IAC valve, rpm out of range
41A EST circuit open
41B EST circuit shorted
42A Bypass circuit grounded
42B Bypass circuit open
42C Bypass circuit shorted
41. EST bypass, open or shorted
42. EST bypass, open or shorted
43. ECS (knock sensor) circuit open or shorted
44. Oxygen sensor indicates system lean
45. Oxygen sensor indicates system rich
46. Power steering pressure switch circuit, open
49. Idle rpm out of limit high (vacuum leak)
51. PCM memory error
55. A/D converter error in PCM
81. ABS message fault (1993 vehicles with TCS)
82 PCM internal communication fault
Diagnostic Flags
27. Quick quad driver output fault (1993 only)
48. Reference imput intermittent or noisy
52. Battery voltage out of range
53. ESC knock present
54. Five volt reference ground
58. Battery voltage unstable
61. 6x signal fault
63. Option check sum error
67. Handwheel sensor circuit fault
71. Cooling system temperature high
72. Coolinng system temeprature low
73. CTS sensor unstable
74. CTS/transaxle temperatuer sensor ratio error
76. ATS sensor unstable
83. Low coolant (1993 only)
SOURCE: 99 saturn sl2 has lost reverse
Reverse & 2nd gear share the same clutch pack.Usually when reverse goes out you will get wierd shifting into 2nd or 3rd.Most likey the Input shaft retaining nut has come loose inside the first clutch housing.It can be accessed from the trans end cover but it will take some disassembly.The trans doesn't have to come out to correct this problem.I repaired many saturns with this problem.The only parts you will have to buy is an end cover gasket(paper gasket) & 41/2 qts Trans fluid.Decent mechanice could do this in about 2-3 hrs or less.The service engine light is probally on due to trouble codes from the trans controller most likey DTC P0723 No 2nd gear.hope this helps
SOURCE: Saturn LS1 2000 wants to start but won't
The fab key activates the security system in the car, the ignition pass lock may need to be reset to your ignition key's. It Takes about 30 min to do. Try resetting the pass lock to read your ignition keys. 30-Minute Learn Procedure 1. Turn ON the ignition, with the engine OFF. 2. Attempt to start the engine, then release the key to ON; the vehicle will not start. 3. Observe the SECURITY tell tale light. After approximately 10 minutes, the light will turn OFF. 4. Turn OFF the ignition switch, and wait 5 seconds. 5. Repeat steps 1 through 4 - two more times - for a total of 3 cycles of 10 minutes. 3x10 = 30 minutes. The vehicle is now ready to relearn the Passlock Sensor Data Code and/or passwords on the next ignition switch turn from OFF to CRANK. Important: Turn the Ignition Switch OFF. The vehicle learns the Passlock Sensor Data Code and/or password on the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle. 6. Start the engine. The vehicle has now learned the Passlock Sensor Data Code and/or password. 7. With a scan tool, clear any DTCs if needed. History DTCs will self clear after 100 ignition cycles. Without a scan tool you may have momentary starter interruptions while history clears itself. Good luck and hope this helps. The ignition keys has a resistor value for the ignition to read and after a few years the resistance may change and the Pass Lock has a had time reading it's value so you have to reset the pass lock to read the keys again.
SOURCE: 02 saturn l200 starts then dies immediately
try your spare key it sounds like the transponder in the key is going bad
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