Whats with these T-Link ####'s

[RI-Matt]

Ken or anybody else,
Today I took my car out for a ride with TLink running. All went well no problems, get home and start reading the data back and notice a few frames where throttle was closed during deceleration and mph read @ 38, 33, 28 then 84, 124, 22
Now there is no way I was going 124 so whats up with that?
If it matters, chip was a Thrasher 92, GNX style gauges (VDO). No codes or anything else seemed out of wack. What do you think?
Thanks in advance.
Matt

 

[kenmosher]

As long as none of the other data is out of whack, I'd venture to guess the VSS for your gauge cluster might be intermittently whacky. I've had a couple other folks report the same thing with the aftermarket VSS with the GNX gauges.

It doesn't seem to hurt anything, so I guess I'd tend to just watch it and make sure it doesn't get worse...

 

[RI-Matt]

Unfortunately Ken I found some other wacky data. I found a few frames where the RPM's were reading 2100, 2200 then 3800, and 4300. No other changes in TPS, speed was actually slowing. If I could figure out how to send you the data I would and maybe you could figure it out.
Matt

 

[kenmosher]

Since you are seeing things happen under a specific scenario (just send the .ECM file to me as an attachment in the email... mailto:kenmosher@home.com), I suspect that something happens when the throttle is closed...

- motor torques over and pulls on grounds at the back of the head
- grounding strap from battery to block is weak
- laptop moves in the seat and puts pressure on the parallel port (wiggles it around...)

Lemme look at the data and we'll see if there's a pattern there...

 

[RI-Matt]

Thanks Ken
You've got mail

Matt