Yahelou

iTrader: (23)

I have to reset my needle tommorow, cuz i messed it up puttin in a gauge overlay. Can you guys tell me what your cars idle at when it is in park and at usual running temp? Any help would much appreciated.

2001NBMZ28

Stock mine read 645-676 back and forth on a scanner. Tach was pretty close to the middle.

z28_n_tx

iTrader: (7)

what yr is your car?? if im not mistaken i think the 99's or 98's have a more accurate reading....i haven an 01 and mine idles at about 550-600, and my operating temp is just below the 210 mark. im assuming your car is stock right??

2001NBMZ28

550-600 on the tach sounds like the in gear idle with foot on the brake - mine read 525-585 on a scanner. In gear idle/Park-Neutral idle are different. Don't know if there's a difference between years though?

Sunset'01Z

iTrader: (10)

scanners will always read a little bit higher than what the tach is reading, fwiw.

Yahelou

iTrader: (23)

mine is a 2000 z28 a4. everything stock except throttle body.

98z28m6

How do you reset the tach? Ive searched for this before and couldnt find it. My 98 says its idling at 1250 and its idleing at 850. thanks

Yahelou

iTrader: (23)

im not resettin it the right way. which would be with a laptop and special program. i know the needle in the tach is wrong, so im gonna let the car run at normal temp at idle and then take out the needle and put it back where i believe it should be in the general area.

WolfgangX

iTrader: (3)

about 850, stock 99 after its just under 210 on the temp