Cranks for 2 seconds and quits

9

94f450sd

New member
Apr 21, 2018
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94f450sd said:
Yes.5v to cam sensor,which I have.12v to the crank sensor,wich I have.my volts are correct.my grounds are good.i had to swap harnesses so I know the block grounds are good.

I have fluctuating voltage on the signal wires.j don't know what those should be but I assume the sensors are working?
Click to expand...


Now I've read a few things that say I should have 12v to both sensors.anybody know what's correct? If I'm supposed to have 12v at the cam sensor but I only got 5,that very well could be the problem.
 
stibuilder

stibuilder

New member
Oct 17, 2016
239
0
0
Snoqualmie, WA
Burn Down said:
No programming ficm lly injectors.
Click to expand...

I have no clue about the LLY's just know thats exactly what they said about the LBZ's in the Kodiak I have 5000$ later and 6 months wasted its what made mine run.

I trust you know more than I do on these things just tossing out my experience. :hug:
 
R

Ron Nielson

Active member
Oct 11, 2009
777
148
43
Berryton, KS
94f450sd said:
Yup.i don't know what voltages it's supposed to show but it seems as though the sensors are working
Click to expand...

This is for my 2008 LMM:
Crankshaft Sensor - 5V reference circuit
Camshaft Position Sensor - 5V reference circuit

Pin 1 - Sensor signal (Output)
Pin 2 - Low Reference (Ground)
Pin 3 - 5V reference (Input)

You would do yourself a favor if you subscribed to ALLDATADIY or similar. Lots of information makes doing repairs much easier when you have some reference material and don't have to guess.
 
Burn Down

Burn Down

Hotrodder
Sep 14, 2008
7,092
28
48
Boise Idaho
Here’s a little rant about trying to help people you don’t know... I loaned this guy my spare lly ficm, I even rush shipped it to him because I felt bad he had been having so much trouble. Anyway he pms me that it didn’t work and he was going to send it another shop and let them have a go at it... Apparently that meant my ficm must have gone with it... Any who Merry Christmas Richard Rock I hope you get or got what’s coming to you. If I’m ever in your neck of the woods I’ll look you up;)
 
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