IHEARTLS1

iTrader: (1)

is the cam sensor that cam on vvt engines different than a standard ls2 cam sensor? i ask because i have an msd 6012 box running a carbureted setup and it runs but says cam sensor failure. i double checked the wiring and it is correct, but i keep getting the failure message. is there a way to test the cam sensor. the engine is an LY6 and the vvt is removed. i am using a 4x cam gear.

IHEARTLS1

iTrader: (1)

i tested the ohms and got 16.7

IHEARTLS1

iTrader: (1)

im also using the stock vvt timing cover, but i removed the vvt and put a traditional cam in there. i was told it would work. would this cause an issue reading the cam gear?

jay_lt4

iTrader: (4)

when you remove the vvt you need to replace the vvt timing cover with a standard LS2/3 timing cover

IHEARTLS1

iTrader: (1)

why? mike from rapid motorsports told me that was not needed.

MM98

iTrader: (13)

They are the same part, #12591720.

IHEARTLS1

iTrader: (1)

thank you that is the info i was looking for. i bought a new cam sensor and tested it. reads 15.28 ohms. i will give it a shot.

SweetS10V8

iTrader: (4)

Because the VVT sensor reads off of the end of the cam phaser, which is why there is a big bulge in the cover. WHereas the standard 4x reads off of the timing gear.

When you dont swap the cover the air gap would be huge and not read.

IHEARTLS1

iTrader: (1)

i changed the cam sensor tonight and hooked up the wires correctly. i will test fire it tomorrow to see if my problem is solved. if not the only thing left is to change to the ls2 cover. the only reason why i didnt do that already is because mike from rapid motorsports told me i wouldnt need to change the cover.

IHEARTLS1

iTrader: (1)

i just called matt from texas speed and he said the vvt cover works no problem. thats two people from two respectable businesses that participate here. i will try it today.

Sales2@Texas-speed

iTrader: (5)

Yes sir, we've done the swap here plenty of times! The cam sensor is in the same spot and that other "sensor" is actually a peice for the pulse width modulator to control the VVT.

jay_lt4

iTrader: (4)

sure looks like the air gap would be huge if you removed the vvt cam gear and replaced it with a standard 4x gear


.

IHEARTLS1

iTrader: (1)

wait 3 hours and i will tell you what happens.

Sales2@Texas-speed

iTrader: (5)

Excuse me, I'm sorry I mis-spoke on this one!!!!

The cam sensor is the same, but the cover will have to be changed! If you look at a VVT cam gear and phaser assembly, the cam sensor pickup is on the phaser, about an inch forward of the can gear itself! That will definitely not pick up. I hope this did not cause you extra work or headache! You will definitely need a standard non-VVT cover if you run the regular cam gear with no phaser on it.

Again, my apologies for mis-speaking on this one!

IHEARTLS1

iTrader: (1)

just verified this. the cam sensor STILL does not read. i need to have this car ready for pinks in 2 weeks and i'm almost positive i wont have time to swap the cover and neglect things like my 6 point bar. i wish someone didn't give me misinformation.

if i left this problem the way it is, will the car's performance suffer, or does it have more to do with starting the car more quickly? i have a carb and the car starts fine as is really. will i be down on power if i don't change the cover and get the cam sensor to read? again, please only facts.

IHEARTLS1

iTrader: (1)

anyone have a standard ls2 cover?

IHEARTLS1

iTrader: (1)

with a carb, i control the fuel so i know the cam sensor won't affect that, but will it affect my ignition timing even though i put in the timing specs into the MSD box?

if i won't lose performance, i will hold off switching the cover until after pinks all out.

IHEARTLS1

iTrader: (1)

i heard from one of the top 10 gm mechanics for 8 years until they ended the program that i don't need the cover because i'm using a carb and it doesn't affect my ignition timing, and my fuel is all controlled by me. it would only affect me if i was using EFI.

SweetS10V8

iTrader: (4)

Hes probably an "ASE" Master certified tech. Little secret....ASE= Ask Someone Else. Hes only correct if your running a distributor.

You need a cover with cam sensor, a crank sensor(58x), and MAP sensor still to run that box.

3pedals

iTrader: (3)

you need the cover