Diagnostic HELP PLEASE
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Teching In
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Diagnostic HELP PLEASE Hello. I recently bought a rebuilt LS6 with a LS9 cam in it, to replace my LS1, in my 01 z28.
New motor runs fine, so far, but is hard to start, sometimes, and is throwing a p0343 code, occasionally.
I have replaced the cam sensor, already (Std. Ignition)
My tach is not working either, as it was before, my z28 threw a rod.
Shreve's Engines, out of STL, says to replace the crank sensor, for hard to start issue.
Any thoughts on part, or all of this, would be appreciated.
As always, thx for everyone's infinite wisdom, and experience!!!!
New motor runs fine, so far, but is hard to start, sometimes, and is throwing a p0343 code, occasionally.
I have replaced the cam sensor, already (Std. Ignition)
My tach is not working either, as it was before, my z28 threw a rod.
Shreve's Engines, out of STL, says to replace the crank sensor, for hard to start issue.
Any thoughts on part, or all of this, would be appreciated.
As always, thx for everyone's infinite wisdom, and experience!!!!
Last edited by randys101; Aug 26, 2019 at 10:26 AM. Reason: Forgot
Thread Starter
Teching In
Joined: Oct 2018
Posts: 31
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Thread Starter
Teching In
Joined: Oct 2018
Posts: 31
Likes: 0
Follow up: Installed the new crank sensor, and went to calibrate CPK sensors, and come to find out, my new cam sensor, is not producing any voltage, at all, thus making my calibration, null and void.
This explains why, my tach isn't working as well.
What are the odds, of a new cam sensor, being bad, as well as the original??
This explains why, my tach isn't working as well.
What are the odds, of a new cam sensor, being bad, as well as the original??
Follow up: Installed the new crank sensor, and went to calibrate CPK sensors, and come to find out, my new cam sensor, is not producing any voltage, at all, thus making my calibration, null and void.
This explains why, my tach isn't working as well.
What are the odds, of a new cam sensor, being bad, as well as the original??
This explains why, my tach isn't working as well.
What are the odds, of a new cam sensor, being bad, as well as the original??
Thread Starter
Teching In
Joined: Oct 2018
Posts: 31
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Update So, now it would appear, I have a bad ignition switch, as well.
The car isn't starting, no gauges work, etc.
(Yes, the battery is fine.)
Trying to change that out, without removing the steering column.
The car isn't starting, no gauges work, etc.
(Yes, the battery is fine.)
Trying to change that out, without removing the steering column.
Trending Topics
Does the LS9 cam have the rear reluctor for a gen3 engine? I thought I had heard before that the newer gm cams don't and that you have to run the sensor on the cam gear/timing cover with them.
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Verdad Gallardo A 2001 Camaro is a 4th Gen Camaro. The Ls1 engine that came in it is a 3rd Gen small block. The Ls9 is a 4th Gen engine.
Cam sensor location is one of the differences between 3rd and 4th Gen engines.
Cam sensor location is one of the differences between 3rd and 4th Gen engines.
TECH Senior Member
Joined: Jun 2016
Posts: 22,291
Likes: 3,616
From: Central Cal.
That's because it IS fourth gen! '67-'69 is 1st gen, '70-'81 2nd gen, '82-'92 3rd gen, '93-'02 4th gen.
Originally Posted by randys101
You are correct!!
I called Shreves Engines, out of St. Louis, and they basically said, OOP's!!
We forgot about this!!
They are looking to find me a front cam sensor timing chain cover setup.
I called Shreves Engines, out of St. Louis, and they basically said, OOP's!!
We forgot about this!!
They are looking to find me a front cam sensor timing chain cover setup.
Thread Starter
Teching In
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Update on all this: The problem is the rear reluctor wheel. There is not one. LS9 cam doesn't come with one.
Shreves missed this fact and didn't inform me, about it. Maybe they assumed, I knew this, when I picked the new motor up.
They are going to repair this for me, by installing a new LS2 timing chain cover with front sensor, and extended harness.
Also, the ignition switch/gauges not working/not starting issue, turned out to be a shorted starter wire, blowing the 50amp fuse.
Thx for all the input, as always.
Shreves missed this fact and didn't inform me, about it. Maybe they assumed, I knew this, when I picked the new motor up.
They are going to repair this for me, by installing a new LS2 timing chain cover with front sensor, and extended harness.
Also, the ignition switch/gauges not working/not starting issue, turned out to be a shorted starter wire, blowing the 50amp fuse.
Thx for all the input, as always.
TECH Senior Member
Joined: Jun 2016
Posts: 22,291
Likes: 3,616
From: Central Cal.
Update on all this: The problem is the rear reluctor wheel. There is not one. LS9 cam doesn't come with one.
Shreves missed this fact and didn't inform me, about it. Maybe they assumed, I knew this, when I picked the new motor up.
They are going to repair this for me, by installing a new LS2 timing chain cover with front sensor, and extended harness.
Also, the ignition switch/gauges not working/not starting issue, turned out to be a shorted starter wire, blowing the 50amp fuse.
Thx for all the input, as always.
Shreves missed this fact and didn't inform me, about it. Maybe they assumed, I knew this, when I picked the new motor up.
They are going to repair this for me, by installing a new LS2 timing chain cover with front sensor, and extended harness.
Also, the ignition switch/gauges not working/not starting issue, turned out to be a shorted starter wire, blowing the 50amp fuse.
Thx for all the input, as always.
