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Old 05-28-2019   #1
Okiedoke
 
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Default Service Engine Soon

The Service Engine Soon light came on for the first time a few months ago. It goes away after a restart. The shop said it's a code 31. It's come on two more times since. The last time it came on, I could swear I felt the throttle stutter a couple of times in quick succession. Any idea what's going on and how to fix it?

Thanks,
Harry
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Old 05-28-2019   #2
indy91zr1
 
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Default Re: Service Engine Soon

seems as though a code 31 is a failed cam sensor. There is a thread if you search for it on it. You would have to test them and see which one it is. Maybe the connection is just loose or needs cleaned since its intermittent.
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Old 05-28-2019   #3
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Default Re: Service Engine Soon

Search threads for camshaft position sensor. There is only one located on the left head. The part is no longer in production and only Jerrys Gaskets has them. Your engine will intermittently just stop running but will restart just fine.
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Old 05-28-2019   #4
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Default Re: Service Engine Soon

Quote:
Originally Posted by Young1 View Post
Search threads for camshaft position sensor. There is only one located on the left head. The part is no longer in production and only Jerrys Gaskets has them. Your engine will intermittently just stop running but will restart just fine.
Jerrys Gaskets is not presently offering the Cam Sensors. We are working on resolving issues & hope to be able to offer them again in the future.
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JERRYS LT5 GASKETS & PARTS
http://www.jerrysgaskets.com
1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc.
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Old 05-29-2019   #5
Okiedoke
 
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Default Re: Service Engine Soon

Thanks for the pointers everyone! BTW, I assume the camshaft position sensor is an LT5 specific part?

Thanks,
Harry
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Old 05-29-2019   #6
Young1
 
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Default Re: Service Engine Soon

Yes it is LT5 Specific. The big companies no longer manufacture it and NOS iis non existent. I have the prototype running in my car now for 1.5 years of what Jerry is working on.
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Old 05-30-2019   #7
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Default Re: Service Engine Soon

Quote:
Originally Posted by Okiedoke View Post
Thanks for the pointers everyone! BTW, I assume the camshaft position sensor is an LT5 specific part?

Thanks,
Harry
http://www.zr1.net/forum/showthread.php?t=28624
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Old 05-30-2019   #8
Karl
 
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Default Re: Service Engine Soon

Quote:
Originally Posted by Okiedoke View Post
Thanks for the pointers everyone! BTW, I assume the camshaft position sensor is an LT5 specific part?

Thanks,
Harry
and also

http://www.zr1.net/forum/showthread.php?t=28584

post #42 & #58

Good luck
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Old 06-04-2019   #9
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Default Re: Service Engine Soon

Quote:
Originally Posted by A26B View Post
Jerrys Gaskets is not presently offering the Cam Sensors. We are working on resolving issues & hope to be able to offer them again in the future.
I was in the group buy maybe a year ago,are there issues with the new modified part? I bought one a few years ago at the auto parts store,can’t remember what brand it was.
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Old 07-09-2019   #10
Okiedoke
 
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Default Re: Service Engine Soon

Quote:
Originally Posted by A26B View Post
Jerrys Gaskets is not presently offering the Cam Sensors. We are working on resolving issues & hope to be able to offer them again in the future.
Hi Jerry,

Any idea when you will be offering the cam sensors again? My symptoms are getting worse. It used to hesitate for a split second. The other weekend, the engine died 3 times within a few minutes while on grid waiting to get onto the autocross course. Thanks!
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