Need help with TunerCat and changing Gears

Trizney · 01-08-2005, 01:32 AM

I finally got a correct cable and read the PCM file today. Went to Speed Calibration. CHanged the gears to 4.10 and set it to Manual, clicked on Calculate, Apply, and then uploaded the PCM to my car. Took it around the block, and it seems to read 1 mph for say 15-20mph. What exactly do I need to change?

Also, on disabling the EGR, do I disable EGR Diagnostics or EGR Electrical Diagnostics?

Thanks in advance,
Trey

tjwong · 01-08-2005, 02:51 AM

Quote:

Originally Posted by Trizney

I finally got a correct cable and read the PCM file today. Went to Speed Calibration. CHanged the gears to 4.10 and set it to Manual, clicked on Calculate, Apply, and then uploaded the PCM to my car. Took it around the block, and it seems to read 1 mph for say 15-20mph. What exactly do I need to change?

Also, on disabling the EGR, do I disable EGR Diagnostics or EGR Electrical Diagnostics?

Thanks in advance,
Trey

Did you choose the F or Y body in the "car type" box? The reason is that the ZF transmission has a tottaly different speed sensor unit than a F or a B body. If you mistakenly chose the F or B body option with an A4 it would calibrate for a 40 pulse speed sensor or with an M6 it would be 17 pulses. A ZF is something like 2.

Trizney · 01-08-2005, 06:32 PM

Yeah, it actually defaulted on Y Body.

What is weird, is it started working now. Not sure if it is correct though. I need to drive beside a friend to see if it is accurate.

TJ, there was this post about constant pulse needing to be 4007

http://forums.corvetteforum.com/show...ghlight=speedo

Is that for something other then the ZF6?

tjwong · 01-09-2005, 12:53 AM

Quote:

Originally Posted by Trizney

Yeah, it actually defaulted on Y Body.

What is weird, is it started working now. Not sure if it is correct though. I need to drive beside a friend to see if it is accurate.

TJ, there was this post about constant pulse needing to be 4007

http://forums.corvetteforum.com/show...ghlight=speedo

Is that for something other then the ZF6?

That is for an earlier $8D ECM definition. The later PCM part number 1618133 does not use the road speed constant.