PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

RPM signal

Reply Subscribe

Search this Thread

Old

Feb 7, 2006 | 10:06 PM

#1

Thread Starter

Teching In

iTrader: (1)

Joined: Oct 2005

Posts: 37

Likes: 0

Default

RPM signal

Where does the RPM signal come from? I mean, what sensor does the PCM use to determine RPM? My problem is that my RPM's indicated and logged jump 400-500 RPM 3-5 times a second. I think this causes some pretty screwey things to happen with timing and injector timing. I do have to get the CPK relearn done (waiting for my local dealer to call me back with an appointment). But just curious if this is where the computer determines the RPM from.

Thanks,
Derrick

P.S. I have a 2001 Z06 with a C5R 427.

Old

Feb 8, 2006 | 01:11 AM

#2

8 Second Club

iTrader: (16)

Joined: Jul 2003

Posts: 4,651

Likes: 17

From: Chicago IL

Default

crank position sensor.....

Reply Subscribe

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 03:19 AM.