LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Crank Position sensor question

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Old Oct 29, 2004 | 08:04 PM
  #1  
obiwan76's Avatar
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From: Crumpler ,NC
Crank Position sensor question

I am doing an Lt1 swap from a 95 model to a 97 model after i spun a bearing.
I was needing to know if i need to hook anything up to the CPS if I use the 95 harness. The 95 does not have a Crank Position Sensor or the plug in the harness to use it. My main question is it vital and will the engine run properly without it plugged in. I have the engine in the car and am at a dead end until I find out what to do about the CPS
Old Oct 29, 2004 | 08:36 PM
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Josh-'04 GTO's Avatar
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Re: Crank Position sensor question

If you're using the '95 PCM, then you won't need the CPS.
Old Oct 29, 2004 | 08:37 PM
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Re: Crank Position sensor question

Thank you SOOOO much that was what i was worried about... =)
Old Oct 29, 2004 | 08:50 PM
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Re: Crank Position sensor question

I should clarify a little. If you have a California car, then a '95 will have OBD II, and therefore a CPS requirement in the PCM. But odds are you should be all set. Just leave it unplugged with the sensor in place so that you won't have to change the timing cover.
Old Oct 29, 2004 | 08:57 PM
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Re: Crank Position sensor question

Originally Posted by Josh-'97 WS6
I should clarify a little. If you have a California car, then a '95 will have OBD II, and therefore a CPS requirement in the PCM. But odds are you should be all set. Just leave it unplugged with the sensor in place so that you won't have to change the timing cover.
Let's clarify your clarification.
No 1995 LT1 f-bodies had OBDII. They are all OBDI, California emissions or no.
Old Oct 29, 2004 | 09:20 PM
  #6  
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Re: Crank Position sensor question

Originally Posted by shoebox
Let's clarify your clarification.
No 1995 LT1 f-bodies had OBDII. They are all OBDI, California emissions or no.
95 California cars had dual cats, right? Maybe I shouldn't be assuming that dual cats = OBD II equipped?
Old Oct 29, 2004 | 10:07 PM
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Re: Crank Position sensor question

Originally Posted by Josh-'97 WS6
95 California cars had dual cats, right? Maybe I shouldn't be assuming that dual cats = OBD II equipped?
The 1995 California emissions automatic equipped cars had dual cats, but were still OBDI.
Old Oct 30, 2004 | 06:29 PM
  #8  
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Re: Crank Position sensor question

Originally Posted by shoebox
The 1995 California emissions automatic equipped cars had dual cats, but were still OBDI.
Ahhhh... I see. Damn you Shoebox. Next time I'll quit when I'm ahead.
Old Nov 1, 2004 | 01:38 PM
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Re: Crank Position sensor question

ShoeBox is GOD!!! Am I understanding this to be if I have a 97 Z28 with a madwolf obd1 conversion I have no need for the crank position sensor?

Thanks Shawn
Old Nov 1, 2004 | 02:57 PM
  #10  
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Re: Crank Position sensor question

Originally Posted by remaxracer45
ShoeBox is GOD!!! Am I understanding this to be if I have a 97 Z28 with a madwolf obd1 conversion I have no need for the crank position sensor?

Thanks Shawn
Yep, you can leave it disconnected if you want.
Old Nov 1, 2004 | 07:58 PM
  #11  
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Re: Crank Position sensor question

Thanks for the intel Ion!!!!


PS anyone need tuning you are STILL the man!!!!

PSS 410 gears for my A4 in the spring??????
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