What kind of trigger and home sensors do our motors have?

[evilmiata]

Trying to program my haltech E6K now. I need to know for both the trigger and home sensor if they are:
Hall Effect or Reluctor
Rising or Falling edge

I'm using the high res crank sensor (93-95 f-body, if it matters) as trigger and cam sensor as home.
If anyone has a haltech map, please e-mail/pm me. That would be real helpful. dohcfiero.com is down.

[bszopi]

Both are hall effect. As far as rising or falling edge, I'm not sure. I might (should) have a scan around here somewhere that shows it. I know I have it in a tech manual somewhere, but since I'm in the process of packing to move, so all my manuals are packed. I'll see what I can find though...

[bszopi]

Here is a description for a 95 3100 cam sensor. It had the best description I could find...

PURPOSE
The camshaft sensor is a hall-effect sensor installed on the top front of the engine, above the front of the camshaft. The tip of the sensor comes very near a reluctor "pole" piece, cast as part of the camshaft. When this pole piece passes the sensor tip, the disturbance in the sensors magnetic field turns the hall-effect switch "OFF" and "ON" again, producing a signal that the computer can read.

OPERATION
As the camshaft sprocket turns, a magnet in it activates the Hall-effect switch in the cam sensor. When the Hall-effect switch is activated, it grounds the signal line to the Powertrain Control Module (PCM) , pulling the cam signal line's applied voltage low. This is interpreted as a cam signal. The cam signal is created as piston # 1 is on the intake stroke and used by the PCM to synchronize Sequential Fuel Injection (SFI) mode of operation with each intake valve opening. If the cam signal is not received by the PCM, the PCM will still operate in the SFI mode based on the reference signal, however, SFI mode timing may not be as accurate because the PCM does not know the exact time the intake valve is opening.

If that doesn't answer your question, let me know and I'll do some more searching for the actual pictures.

[evilmiata]

Ok, can anyone check the wiring on these things? I want to make sure that I have them wired correctly. I need to know which one is the ground and which is the 12+. If someone can unplug one of these sensors and check the computer-side (not the sensor side) with a multimeter, that would be awesome. Please let me know left to right with the plug lock on top; telling me wire color won't do any good.

[evilmiata]

Come on, guys! Help me out!

[imported_germ]

mulitmeters are $10 at walmart

[evilmiata]

mulitmeters are $10 at walmart

Dude, I don't have a car, let alone a computer/harness to test. Click on my house. In fact, I've never even been under the hood of a running 60*V.

OT: Did you respond to EVERY thread to get 48 posts on your first day as a forum member?

[bszopi]

How long can you wait for info? Gimme till next week, and I should be able to hook you up.

[evilmiata]

Thanks!

[SappySE107]

No, germ was a member before but something happened and he needed create his account again. I editted his post count.

[bszopi]

See if this helps...

[bszopi]

Wow... that's alot bigger of an image than I thought!!!

[bszopi]

Hmm.. guess you don't need that diagram anymore. Now you need the sensor wiring info. Damnit! Ok, I'll see what I can dig up now.

[RacerX11]

Wow... that's alot bigger of an image than I thought!!!

Aaron

[evilmiata]

Wow, Brad. Where'd you get that diagram? What does Prime represent? If Prime means that the fuel injector is opened, is it correct to say that the low-res trigger is falling? I figured that when I looked at the crank wheel. However, I figured that the cam (home) sensor was a rising signal, meaning that the computer starts a new cycle as the cam nub begins to pass the sensor. However, your diagram indicates that the sensor triggers the home signal AFTER the nub passes by. Fortunately, I'm not so worried about the cam sensor. I'm not trying to start the motor and flipping the rising/falling would probably only screw timing up by several degrees. I'm not worried about the low-res sensor either, since I'm not using one. Unfortunately, the diagram really gives me no indication how the crank sensor signals the computer. Plus, since I still get 0 rpm while cranking (I should get ~120-150), I know there is either an error in the programming or the wiring. So yes & yes. I still need info regarding the high-res sensor and the wiring.