Question about Saturn L300

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2001 Saturn L300 v6 3.0l have code P0300, i changed coil pad and spare plug who can to fix?

I try to start the car but not start or only with difficulty and when you turn on only at 3000 rpm and throttle all the way, and if I lost a little rpm turns off after 1 Low Minute to 1500 with the accelerator Basically, after 30 seconds off, change the coil pad and spare plug, clean the canal that runs from the intake to the EGR valve revice voltages computer and coils.

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2 Answers

Car starts and runs but in reverse starts shaking SES lights up and blinks. Have changed the plugs but are getting a P0340. It's an 1998 Saturn 112,000 miles. What could it be?


DTC P0340 will set if the PCM voltage on cylinder #4 signal wire is not pulled to ground (cam signal pulse) when:
Diagnostic Aids
Important: A cam pulse missing may not affect engine operation.
?€¢
An open or high resistance on the #1 plug wire or plug will result in DTC P0340 setting.


?€¢
Inspect the EIS towers and plug the wire connections for corrosion or other signs of poor retention at connections.


The electronic ignition (EI) module supplies a signal to the PCM whenever it determines that the #4 cylinder fired on its compression stroke. Because of opposite coil tower polarity, the simultaneous fir of #1 and #4 cylinders are of opposite polarity as well. Under most conditions, except decel, the waste spark cylinder fires before the compression cylinder in sequence. The EI module can determine this polarity sequence and voltage amplitude by using capacitive pickup plates located under the 1/4 coil. If the module senses a positive to negative sequence and high negative spike when #4 is on TDC, it pulls the PCM cam signal to ground signaling that #4 has just fired on compression. This signal along with the double pulse received from the CKP sensor, synchronizes spark and fuel timing.
Beside plugs , plug wires need to be replaced as well !

Aug 26, 2016 | Saturn Cars & Trucks

Tip

Saturn S series runs rough


It is very common on ALL SATURN S series vehicle for ignition module failure. Usually the symptons are running rough and possibly a check engine light with misfire codes-P0300,P0301,P0302,P0303,P0304.
Some people have attampted replacing plugs and wires,even coils and continually have the problem reoccuring. What happens is the ignition module bolts(x4) stretch out through time and corrosion builds up underneath the module causing incorrect spark displacement. In turn this damages the plug wires and even at times the plugs. What needs to be done is replacing plug wires, plugs if needed, the ignition module bolts(saturn dealer item only)and the ignition module-NOT JUST THE COILS.
This should fix your problem.

on Feb 18, 2010 | Saturn S-Series Cars & Trucks

1 Answer

P0300 code


you have engine misfire you need check your spark plugs if they be ok. need check yours ignition coils

Mar 21, 2014 | Saturn SL Cars & Trucks

2 Answers

2002 Saturn L100 with a P0300 code


Here's a link to the P0300 code and possible causes.Sounds like clogged fuel injectors. https://www.autocodes.com/p0300_saturn.html

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1 Answer

2005 saturn ion 3 trouble code P0300


A P0300 code indicates random, multiple misfires were detected. You eliminated the possibility of ignition system faults by replacing the ignition module, the coils, and the spark plugs (unless the replacement part(s) were no good). However you did not mention the ignition wires which are another probable cause. In addition, there could be vacuum leaks due to damaged hoses or improper routing. Consider also fuel contamination or a problem with the fuel system.

Dec 24, 2013 | Cars & Trucks

1 Answer

I need wiring diagram for 2001 Saturn L300, I also fuel sys dgrm


Mine was doing same, but also revving up weird. I replaced the Crankshaft position sensor and it didnt work. Today I changed the Engine coolant temp sensor and it fixed my problem. Hope this helps!!

Dec 20, 2009 | 2001 Saturn L-Series

2 Answers

I have 02 L300 3.0 with cylinder1 miss fire.I


Swap the coil pack to another cylinder if it is individual. If not, you should be able to pull the wire away from the plug and hear it fire. If not, you have a bad coil. If so, I would look at doing a compression test and possibly a leak down test.

Jun 10, 2009 | 2002 Saturn L-Series

1 Answer

My 2001 Saturn SL2 will not start. The car will


changed sprak plugs and spark plug wires.

Feb 18, 2009 | 2001 Saturn SC

1 Answer

My 2005 saturn ion has a p0300. i changed the ICM and it worked for a while but the same problem started again.


Generally I have found that when this code or one ending in another number (example P0304) can mean that the coil pack is bad. When I get the code that's what I usually had to replace. Here is a website that may help you out ....

http://www.obd-codes.com/p0300

Jan 04, 2009 | Saturn Ion Cars & Trucks

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