I hooked my OBDII reader up to my car now that I got my gauges back up and running (junk yard fuse box in the kick panel fixed it !?!!)...

Anyway, I notice my TPS value is 12.5 percent with my foot off of it, and only 75% when my foot is to the floor.

I know the ECU will accomodate some slop in the range, but 75% seems like it might be under the ECU's WOT threshold. I've not had any luck finding out what the 2g 420a ECU uses as WOT. My camaro I believe is 80 or 85%, but 75% seems low.

Do I have a bad TPS? I assume I can adjust it, but I'd be suprised if I can adjust the window out like I need.

Any ideas?

Thanks.

Originally posted by Tired2
I hooked my OBDII reader up to my car now that I got my gauges back up and running (junk yard fuse box in the kick panel fixed it !?!!)... Anyway, I notice my TPS value is 12.5 percent with my foot off of it, and only 75% when my foot is to the floor. I know the ECU will accomodate some slop in the range, but 75% seems like it might be under the ECU's WOT threshold. I've not had any luck finding out what the 2g 420a ECU uses as WOT. My camaro I believe is 80 or 85%, but 75% seems low. Do I have a bad TPS? I assume I can adjust it, but I'd be suprised if I can adjust the window out like I need. Any ideas? Thanks.

Your OBD2 reader doesn't scale properly for the sensor value. It expects 0-5v+ from the TPS, whereas the scale is more like 0.8v-3.8V on the 2GNT.

They're all like that. If the ECU saw values that it didn't expect, it would throw a TPS code.

Thanks!!