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Old 10-24-2010, 06:27 PM   #1
yardmaster
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1997 SL1
Default Camshaft sensor

Changed camshaft sensor , plugs, wires and coil packs--now it hesitates to start-doesnt seem to be batt/alt problem ---any ideas?

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Old 10-24-2010, 06:45 PM   #2
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1998 SC2
Default Re: Camshaft sensor

There is NO camshaft sensor. There is a a signal generated though. If you see the 341 code then you replace the plugs and wires. Use nothing but NGK plugs. No platinum plugs. If you had listed your year and model in your profile then I could provide you with the correct plug number.

So if you can be a bit more expansive with what has been replaced maybe the problem will become obvious.

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Old 10-24-2010, 06:58 PM   #3
yardmaster
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1997 SL1
Default Re: Camshaft sensor

My mistake -it was the crankshaft sensor--it is a 97 s sedan

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Old 10-24-2010, 07:21 PM   #4
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1998 SC2
Default Re: Camshaft sensor

That helps some. Still need to know what you actually changed, what brand and type of plugs. Which engine Sx-1 or Sx-2 , and Model SC, SL, SW.

Have you changed the ECTS?

Select User CP on the black bar ^^up there and enter the year and model and your location into your profile so it shows up under your name.

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Old 10-24-2010, 07:38 PM   #5
yardmaster
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Default Re: Camshaft sensor

SL1 plugs were ac delco wires,crankshaft sensor,coil packs were auto zone shelf parts (dont know actual namebrand) Not sure what ECTS I assume electronic contol blank sysytem? Not sure about SX1 or 2?

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Old 10-24-2010, 07:46 PM   #6
97RedSaturnSC2
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1996 SC2
Default Re: Camshaft sensor

Engine Coolant Temperature Sensor. its a little sensor on the drivers side of the head. chances are you still have the original plastic one. upgrade it to a brass one. i bought mine at autozone and it has been working great for 4 years now

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Old 10-24-2010, 08:07 PM   #7
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1998 SC2
Default Re: Camshaft sensor

Quote:
Originally Posted by yardmaster View Post
SL1 plugs were ac delco wires,crankshaft sensor,coil packs were auto zone shelf parts (dont know actual namebrand) Not sure what ECTS I assume electronic contol blank sysytem? Not sure about SX1 or 2?
You have an SL-1 that is the SOHC engine. If the AC Delco plugs are platinum tipped replace them with NGK BKR5ESA--11

ECTS, Engine Coolant Temperature sensor. Buy it from your local part store. It is a $10.00 part and will keep the car from starting or running right. These videos will show you how to replace it. Also, very carefully inspect the connector for any sings of moisture or corrosion in the 2 pin holes.

http://www.youtube.com/watch?v=cucm7QGlsYs
http://www.youtube.com/watch?v=JC0U53w_Htk

One of these videos may be deleted now.

Take the forum jump at he bottom of this page, select How-To Library and read the sticky posts relating to ECTS replacement.

A bad ECTS is probably your problem.

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Old 10-24-2010, 08:26 PM   #8
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1997 SL2
Default Re: Camshaft sensor

Quote:
Originally Posted by yardmaster View Post
now it hesitates to start
Please elaborate.. Are you saying it won't start at all, chugs, takes an extended cranking before it fires up, or something else? If it does start is the MIL (service engine light) on?

...
1997 - SL2, barebones, 161k, Auto - Rebuild complete and.. burnt a valve 20k later Arrgh!
Purchased 114k 10/07
Added OEM CC

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Old 10-24-2010, 09:23 PM   #9
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1998 SC2
Default Re: Camshaft sensor

Needs ECTS and throttle body cleaning most likely.

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Old 10-24-2010, 09:46 PM   #10
Tom of Detroit
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1997 SL1
Default Re: Camshaft sensor

1997 was one of the years that the fuel pressure would leak down over time. My 1997 SL1 is one that is affected. I've still got the original pump. The engine almost never starts on the first crank in the morning.

I would check the fuel pressure and make sure the pump isn't on the way out.

-Tom of Detroit

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Old 10-25-2010, 08:31 AM   #11
yardmaster
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Default Re: Camshaft sensor

Thanks everyone for the info. Off track it will start, just acts like it wont at first then it fires up.

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Old 10-25-2010, 10:19 AM   #12
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1998 SC2
Default Re: Camshaft sensor

ECTS and the comment above relating to fuel system priming. Try those first.

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