LT1 Scanmaster question

[WICKED LT1]

Hi everybody, I'm new to this board so call this my intro.... I just picked up a 95 TA M6 that I am just getting to know. I would like to get a scanner on her to see what the engine is up to and make sure that there are no hidden probs. I have used the Snap On's with a lot of success, but don't want to shell out good mod money if I can help it. Anyone that has had experience with the Scanmaster or the other scanners please chime in. I would like to get something that can log for offline viewing later. Any help would be appreciated. Pictures a mod list soon to follow. Thanks


-Paul

[Injuneer]

ScanMaster can not log. It can record the max knock retard, the minimum O2 readings and the MPH at which occured, for a single pass.

To record data for replay, you need software. TTS DataMaster, FreeScan or Diacom are available for your 95.

Here's a link to a draft document on Scanners for the 4th Gen. (This is still "unfinished", but the links and price info might help.)

And here's a link to a ScanMaster Tutorial.

[WICKED LT1]

Thanks

Thanks. I will look into the software option. It's kinda hard to detect O2 changes and such at those speeds. Not real safe either. :-)


-Paul

[Injuneer]

Actually, the ScanMaster is relatively easy to read under all conditions, because of the bright LED display. I have mine mounted on the steering column.

But, O2 sensor readings at WOT are often meaningless, because the sensors were not designed to function accurately under the richer A/F ratios that you need for max power and torque. The curve of mV vs. lambda (A/F ratio vs. stoichiometry) is so flat that the operating temperature of the sensor can have a much larger affect than a significant change in A/F ratio.

[WICKED LT1]

Yeah that's very true. For that reason the PCM ignores the O2 at WOT, so mileage varies wildly trying to use those numbers. I looked at some of the software options for this, and I think I am going to order the Datamaster from TTS. It seems to have to best interface, and I have an old laptop that could do very well in this job.

BTW, How much trouble did you have installing your center gauges? I really like that setup, and was thinking about pulling 2 of those vents for gauges. What size did you use?

Thanks

-Paul

[Injuneer]

Installing the center gauges is fairly easy. Hard part is getting the vent louvers out of the eyeballs without damaging them. Possible, but difficult. Then the 2-5/8" gauges fit in, nice and tight - no modifications at all to dash. Wires, hoses can be run through a hole drilled in the A/C duct, using a long drill bit through the vent opening.