383camaroz28

iTrader: (22)

Whats the best way besides draining the system an pullin timing cover? I heeard if i pull my intake off an valley cover. i can check it that way?


Reason being my tach doesnt work an worked fine before install. An i changed cmp an looked at the wires to it.

Thanks

Pocket

iTrader: (22)

Cam walk wont affect the tach signal, besides it has nowhere to go unless you forgot some parts. Bearings keep it on the proper axis of rotation. Retainer plate keeps it from moving forward, timing gear keeps it from moving rearwards

When you did the cam swap, is it possible you knocked the crank sensor when locking the flywheel when removing/installing the balancer bolt?

383camaroz28

iTrader: (22)

Everyone says crank sensor wouldnt effect the tach not working.

I puled my motor out for the swap. Put all new gaskets an arp bolts.

I put arp cam plate bolts on with arp lube not locktite. I didnt pull my motor out with cyl 1 tdc. Some people say a crank relearn is needed others say no

But i read somewhere on here from 04 of a guy that had same prob, an hia cam bolts backed out moving 1/4 inch an didnt make tach work

Pocket

iTrader: (22)

If the cam sprocket bolts backed out that far, they'd dig into the timing cover

The crank sensor controls the tach, I dont know how else to put it. Cam sensor's only function is to let the PCM know which stroke the engine is on. After start-up it is not used again

383camaroz28

iTrader: (22)

Alright pocket i tryed everything else but that i hope ur right lol,

I did have the crank sensor out while i was painting my block an bay

SOMbitch

iTrader: (8)

Someone correct if I am wrong but I thought the tach got it's reading from the cam position sensor.....

Pocket

iTrader: (22)

Fire up your TA and unplug the cam sensor. Find out for yourself

The_Rizzle

iTrader: (4)

crank does spark, cam does individual injector/spark timing. Most all sequential EFI engines do this. Batch/bank fire efi's don't use cam sensors. However, with the computer controlling 8 coils, the cam sensor must be needed, just like injector control. Your tach signal will come from your crank sensor.

383camaroz28

iTrader: (22)

I got my sensor lastnite im gonna put it in soon, hope it fixes it

Taspeed

iTrader: (1)

Cam sensor behind the intake controls the tach. Make sure it isn't broken or unplugged. My sensor went out and i had to get a new one few years back. Thats all it is. Nothing to do with cam walk, or crank sensors.

383camaroz28

iTrader: (22)

Idk wat else it can be, i didnt put it in yet tho

I checked all my grounds, there a way to test the connector?

SOMbitch

iTrader: (8)

Read this>>>>>https://ls1tech.com/forums/generatio...enor-code.html

Taspeed

iTrader: (1)

not the crank sensor

if the crank sensor is bad the car will not run. It controls timing for the pcm.

383camaroz28

iTrader: (22)

How can i check power to sensor?

1SLwLS1

iTrader: (6)

Definitely not Crankshaft Position Sensor, you would not get any spark.

This is a general test procedure, use at your OWN risk! Pin 1 should be 5V, Pin 2 should be ground, and Pin 3 is your signal. With the engine cranking/spinning, Pin 3 should be between 0-5V.

383camaroz28

iTrader: (22)

Is there a way to check with efilive?

1SLwLS1

iTrader: (6)

I would think so, not sure though as I have no experience with EFILive or HPTuners.

383camaroz28

iTrader: (22)

So i guess ill return crank sensor

When i start the car the speedo an tach makes a sweep then back down n tach goes to 0, someone told me it needs a crank relearn

383camaroz28

iTrader: (22)

Ok so i dont got p0342 anymore, i hooked up efi scantool n scaned it an now its throwing p1367