Wheel sensors

[Dark Angel]

Is there anyway to read the values straight from the wheel sensors? The reason I ask is I am having ABS/ASR problems and I dont know if it's a bad wire or sensor and it would be nice to look at the reply for each sensor and at least know the general direction to look.

[joecar]

No, at present EFILive doesn't read PIDs from other than the PCM;
but, EFILive can read DTCs from other than the PCM
(it may not have a description for each non-PCM DTC,
but you can look up the DTC in the service manual).

[Dark Angel]

Thanks. I got the codes. It is showing a bad wheel sensor, so I am going to try and swap the sensors and see if the problem moves.
I also found this site. Some good info on codes. And tech info for the F-body.
http://members.accessus.net/~090/dtcobd2c.html
http://cv6.fakeleg.com/

[Maggie]

[quote="joecar"]No, at present EFILive doesn't read PIDs from other than the PCM;


I just noticed this thread. I know it's been here awhile but...
Hmm, Why couldn't you use the PCM to monotor ABS?

Question: Could you disconect the speed sensor from the tranny and patch to the ABS WSS, adjust the gear/tire ratio to match the pulse count of the WSS and then log the VSS and work from VSS pulse count?

[joecar]

No, at present EFILive doesn't read PIDs from other than the PCM;


I just noticed this thread. I know it's been here awhile but...
Hmm, Why couldn't you use the PCM to monotor ABS?

Question: Could you disconect the speed sensor from the tranny and patch to the ABS WSS, adjust the gear/tire ratio to match the pulse count of the WSS and then log the VSS and work from VSS pulse count?

Maggie,

Spoken like a true engineer... :D :D :D

Yes, you could patch/splice VSS from one of the WSS and adjust with EFILive Tune Tool;
Vette's have their VSS after the ring/pinion and EFILive Tune Tool has a check box for this
("Transaxle"), so all you would have to alter is the pulses per tire rev.
Could even make up a subharness so it can be undone in seconds.

I think Dark Angel was referring to the other ABS controller PID's (there's about 40)
that give info such as the state of the 8 or 9 solenoids that the ABS module controls.
EFILive does not read the ABS PID's, but it does read the ABS DTC's.

Hey... your "get groceries in a race car" sounds familiar...
wasn't your F-bod written up in one of the magazines
(...was it Pontiac Enthusiast...?) about 2 years ago...?
Cool car.

Cheers
Joe
8)

[joecar]

Oh... I remember, it was written up in GMHTP.

[Maggie]

Oh... I remember, it was written up in GMHTP.

Joecar, yes it was GMHTP. Great bunch of folks at that mag.
Thanks for remembering.

Maggie