sensor questions- cam position sensor?
04-24-2002, 01:41 AM
#1
Teching In
Thread Starter
Join Date: Apr 2002
Location: South Dakota
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
sensor questions- cam position sensor? I just ordered a 150 page book on the LS1 computer controls, but I can't wait to get an answer. Is there a cam position sensor on these LS1 based engines?
Also, can someone list the sensor inputs that are crutial to make the LS1 engine function? Will LS1edit allow me to rid some of the sensors from the system?
Many thanks in advance,
Corey
hehehe if you read my sig, you'll understand what I'm trying to accomplish <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
Also, can someone list the sensor inputs that are crutial to make the LS1 engine function? Will LS1edit allow me to rid some of the sensors from the system?
Many thanks in advance,
Corey
hehehe if you read my sig, you'll understand what I'm trying to accomplish <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
04-24-2002, 06:22 AM
#2
TECH Fanatic
Join Date: Nov 2001
Location: Iowa :-/~
Posts: 1,705
Likes: 0
Received 0 Likes
on
0 Posts
Re: sensor questions- cam position sensor? I'm sorry I can't a great deal but I can say yes to this question...
"Is there a cam position sensor on these LS1 based engines?"
Yes there is I seen the sensor reading on my AutoTap. Can't help with any of the number though. As some more get on line I'm sure you will see what you need. Good luck with what your doing.
<small>[ April 24, 2002, 06:22 AM: Message edited by: 2000 Camaro SS ]</small>
"Is there a cam position sensor on these LS1 based engines?"
Yes there is I seen the sensor reading on my AutoTap. Can't help with any of the number though. As some more get on line I'm sure you will see what you need. Good luck with what your doing.
<small>[ April 24, 2002, 06:22 AM: Message edited by: 2000 Camaro SS ]</small>
04-24-2002, 11:21 AM
#3
Teching In
Thread Starter
Join Date: Apr 2002
Location: South Dakota
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
Re: sensor questions- cam position sensor? Thanks for the reply, I can't understand why a cam position sensor would be needed???? It has a crank position sensor.........oh well its just one more thing to worry about.
04-24-2002, 10:56 PM
#5
Re: sensor questions- cam position sensor? Yes, the LS1 has a cam position sensor. Whenever you have sequential fuel injection, you must use a cam sensor to know when cylinder #1 is approaching TDC on the compression stroke. A crank sensor will tell you when cylinder #1 is approaching TDC, but a crank sensor can't tell WHICH stroke the engine is on, compression or exhaust. Since the LS1 has sequential injectors AND sequential ignition coils, it must have a cam sensor to know when to squirt and spark! <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
__________________
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno
www.speartech.com
04-25-2002, 12:09 AM
#6
LS1Tech Co-Founder
iTrader: (34)
Re: sensor questions- cam position sensor? The cam position sensor sits behind the intake. It's a holeflect (sp?) sensor.
The crank position sensor is above the starter. I think they both have to be in phase for the car to work right.
The crank position sensor is above the starter. I think they both have to be in phase for the car to work right.
Trending Topics
04-26-2002, 12:39 AM
#8
Teching In
Thread Starter
Join Date: Apr 2002
Location: South Dakota
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
Re: sensor questions- cam position sensor? Got my book today, and WOW!!! talk about in depth stuff. It wasn't 150 pages either. more like 400 just covering corvette fuel injection
04-26-2002, 12:48 AM
#9
TECH Regular
Join Date: Jan 2002
Location: Lincoln Park Mi
Posts: 400
Likes: 0
Received 0 Likes
on
0 Posts
Re: sensor questions- cam position sensor? what does the cam position sensor look like? is it the tall round one or the flat one? there are two behind the intake... <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
04-26-2002, 01:08 AM
#10
Teching In
Thread Starter
Join Date: Apr 2002
Location: South Dakota
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
Re: sensor questions- cam position sensor? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Freak:
<strong>what does the cam position sensor look like? is it the tall round one or the flat one? there are two behind the intake... <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Pic shows its the small flat one. From the books explanation, it's only there so the car will start quicker. Since it takes 2 rotations of the crank for 1 rotation of the cam, upon startup it would take longer for the ECU to guess what stroke the crank was on to fire the plug. The cam sensor tells the ECU where it's at upon starting.
<strong>what does the cam position sensor look like? is it the tall round one or the flat one? there are two behind the intake... <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Pic shows its the small flat one. From the books explanation, it's only there so the car will start quicker. Since it takes 2 rotations of the crank for 1 rotation of the cam, upon startup it would take longer for the ECU to guess what stroke the crank was on to fire the plug. The cam sensor tells the ECU where it's at upon starting.
04-26-2002, 01:53 AM
#11
TECH Regular
Join Date: Jan 2002
Location: Lincoln Park Mi
Posts: 400
Likes: 0
Received 0 Likes
on
0 Posts
Re: sensor questions- cam position sensor? Rock on! thanks dude. We were wondering why the thing looked so weird, we thought it was the oil press sender, guess we jsut thought that because it had oil on it LOL <img border="0" alt="[jester]" title="" src="graemlins/gr_jest.gif" /> we're retarded <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" /> <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
04-26-2002, 09:12 AM
#12
On The Tree
Join Date: Feb 2002
Location: Chicagoland
Posts: 188
Likes: 0
Received 0 Likes
on
0 Posts
Re: sensor questions- cam position sensor? The tall cylindrical sensor is the oil pressure sending unit.
The cam sensor is a necessity for sequential fuel injection as well as if you are using a distributorless ignition, as John already noted.
I am betting that it would use the cam sync after startup as well. Some of the computers update the synch and check the cam sensor after startup. It may run, but it would set a code, if unplugged is my guess. Might even go into a batch fire injector mode ? This is the way the older sequential systems sometimes operate.
Brian Green
The cam sensor is a necessity for sequential fuel injection as well as if you are using a distributorless ignition, as John already noted.
I am betting that it would use the cam sync after startup as well. Some of the computers update the synch and check the cam sensor after startup. It may run, but it would set a code, if unplugged is my guess. Might even go into a batch fire injector mode ? This is the way the older sequential systems sometimes operate.
Brian Green
04-26-2002, 09:55 AM
#13
On The Tree
Join Date: Apr 2002
Location: Ottawa, ON
Posts: 112
Likes: 0
Received 0 Likes
on
0 Posts
Re: sensor questions- cam position sensor? If the cam sensor isn't working, starting times are long. Mine set a code, forget number but the engine was hard to start.
04-27-2002, 10:18 AM
#14
Teching In
Thread Starter
Join Date: Apr 2002
Location: South Dakota
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
Re: sensor questions- cam position sensor? Has anyone pulled a crank out? Is the Crankshaft reluctor wheel easy to get off the crank? I think this will be the last obsticle I have to tackle in the conversion.
04-28-2002, 11:28 PM
#16
Teching In
Thread Starter
Join Date: Apr 2002
Location: South Dakota
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
Re: sensor questions- cam position sensor? Amazon.com
1. Corvette Fuel Injection & Electronic Engine Control: 1982 through 2001
by Charles O. Probst (Paperback - April 2001)
Usually ships in 24 hours
List Price: $34.95
Our Price: $24.47
You Save: $10.48 (30%)
1. Corvette Fuel Injection & Electronic Engine Control: 1982 through 2001
by Charles O. Probst (Paperback - April 2001)
Usually ships in 24 hours
List Price: $34.95
Our Price: $24.47
You Save: $10.48 (30%)
05-01-2002, 12:07 AM
#17
On The Tree
Join Date: Apr 2002
Location: land of the 4" bore.
Posts: 191
Likes: 0
Received 0 Likes
on
0 Posts
Re: sensor questions- cam position sensor? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by mobius:
<strong>i believe it is a "Hall Effect" sensor</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Ditto. <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
<strong>i believe it is a "Hall Effect" sensor</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Ditto. <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
