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Old 10-28-2016, 01:09 AM   #1
gordon24
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Default Spark issue

I have a gut feeling I should know the next place to look for this issue, but, what I am not getting spark. I've changed the coil pack. I have yet to put on the new control module. If I don't have spark after that, where should I go from there?

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Old 10-28-2016, 01:26 AM   #2
Medtactics
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1999 SC2
Default Re: Spark issue

CKPS crank shaft positioning sensor, quite easy to change and cheap. You will need to lift the car enough to access the back of the engine block from down under, only tool you need a 1/4in socket wrench and 10mm or 8mm socket i think.

You will not be able to see the bolt and will have to feel around for it and reccomend rubber gloves to avoid electrocution as it is right behind the starter. If you really want to be safe/don't trust your self, completly disconnect the battery.

You could check by attaching multi meter to a purple wire (correct me if im wrong, been a while since i did this) on harness going to the control module and crank the engine or just measure ohms, if over 1600ohms at the control module i would just replace it, one i replaced had 1900ohms and the replacment had 1500ohms, other wise a scan tool with live data will show much more.

Last edited by Medtactics; 10-28-2016 at 01:34 AM..

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Old 10-28-2016, 01:31 AM   #3
mtlsc1
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2001 SC1
Default Re: Spark issue

Make sure you have a good ground on your coils... basic, but those are the easiest mistakes to make.

...
2001 Sc1 1.9 SOHC

Towed less than a quarter mile in 17 years.

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Old 10-28-2016, 01:37 AM   #4
Saturn Night
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1995 SC2
Default Re: Spark issue

Check the Under Hood Junction Block for the EIS fuse(Electronic Ignition System), PCM1, and PCM B. Replace any blown fuses.

And maybe try changing your spark plugs.

...
"What does a Saturn owner do, at the gas station?"

"He checks the gas, and fills the oil....."

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Old 10-28-2016, 10:05 AM   #5
gordon24
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Default Re: Spark issue

I was checking fuses the other morning when the car wouldn't start, but I will also look at those fuses again, don't recall pulling em to look. I love the car and don't want to throw it away because it won't start (I've known people who will throw their car to the JY) It still has life! LOL As much as I may save the $$ I'll also buy the Crankshaft Sensor. I'll just pray its gonna make her go vrooom again.

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Old 10-28-2016, 11:57 AM   #6
Saturn Night
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1995 SC2
Default Re: Spark issue

The Crankshaft position sensor is not hard to change, at all, and is a common culprit of "no spark" conditions. It is also harder to detect, because it RARELY throws an "SES" light.

...
"What does a Saturn owner do, at the gas station?"

"He checks the gas, and fills the oil....."

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Old 10-28-2016, 12:09 PM   #7
billr
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Default Re: Spark issue

Rather than just "throwing a CKP sensor at it", check for injector pulses or the fuel pump coming back on while cranking. If either of those happen... the CKP sensor is OK.

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Old 10-28-2016, 12:15 PM   #8
gordon24
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Default Re: Spark issue

I know it is for sure, because when I had the #2 cylinder plug off, it was spewing drops of gas at me (every time I'd hit the key for starter). But also, when I was turning the starter, it was wanting to for a second, before just turning the motor. But I know don't throw a CPS at it, but its all i can do for now till I can get it to someone to determin the pressure part.

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Old 10-29-2016, 01:04 AM   #9
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Default Re: Spark issue

Just an update. Threw a Crank sensor and it went. Drove like a top again. So the car lives again.

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Old 10-29-2016, 01:25 AM   #10
Saturn Night
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Happy Re: Spark issue

Glad to hear that it is running again.

Now, repeat after me.......

"Cheap, defective, Mexican-built electronics......"

Good ol' "Pride of Delphi" under every hood of our "Genuine GM" vehicles......

...
"What does a Saturn owner do, at the gas station?"

"He checks the gas, and fills the oil....."

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Old 10-29-2016, 11:37 PM   #11
mtlsc1
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2001 SC1
Default Re: Spark issue

Great news, glad to hear that!

...
2001 Sc1 1.9 SOHC

Towed less than a quarter mile in 17 years.

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Old 11-06-2016, 11:59 PM   #12
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1994 SL2
Default Re: Spark issue

Quote:
Originally Posted by gordon24 View Post
Just an update. Threw a Crank sensor and it went. Drove like a top again. So the car lives again.
Thanks for the follow-up. And thanks for all the info provided by others! I may need to find this info later....

I have a "new to me" 1994 SL2, and already had the sunroof issue, as well as the "floppy" shifter, both of which are fixed.

Replacing the odometer gear as soon as it arrives (bought the cheaper one from the guy in Hungary, Great feedback on ebay).

Expecting other small issues shortly.

And FORCING myself to check oil weekly. Been low a few times (but checking less than weekly)... so I don't know consumption levels YET.

And another THANKS to everybody that has been answering questions over the years here... the older answers are JUST as useful to a "new" owner!

...
Driving a NEW (to me) 1994 Saturn SL2, with 76,000 miles!

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Old 11-08-2016, 08:29 PM   #13
TomM96
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Default Re: Spark issue

keep oil level at/above Top dipstick fill mark

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