NPP signaling from ECM?
Thread Starter
Burning Brakes
Joined: Jul 2016
Posts: 853
Likes: 57
From: Joisey
NPP signaling from ECM?
Not interested in how the vacuum dashpots/valving works but more the electrical. I assume the dashpots are electrically controlled with some switch or relay since it's fused and activates at 3000 RPM.... BUT
Does the NPP signal come from the ECM? If so, is it a simple open collector output or something that can drive 100ma?
And the 64,000 question: Is the activation limit of 3000 RPM programmable thru HP Tuners?
Looked around the internet and on the forums for this stuff but nothing found.
Looking to use this signal as an enable for other stuff
Thanks
Does the NPP signal come from the ECM? If so, is it a simple open collector output or something that can drive 100ma?
And the 64,000 question: Is the activation limit of 3000 RPM programmable thru HP Tuners?
Looked around the internet and on the forums for this stuff but nothing found.
Looking to use this signal as an enable for other stuff
Thanks
Melting Slicks
Joined: Jul 2005
Posts: 2,990
Likes: 346
From: Mt. Pleasant S.C.
Thread Starter
Burning Brakes
Joined: Jul 2016
Posts: 853
Likes: 57
From: Joisey
That did help and Thanks, looks like it uses it's own relay, vacuum system, etc... and not even tied into the ECM as you said. Not going to bother digging into it
Melting Slicks
Joined: Aug 2004
Posts: 2,906
Likes: 228
From: Oakbank Manitoba
The factory NPP is controlled by it's own module. It is independent of the the ECM and BCM.
This is what the module looks like. http://www.ebay.com/itm/Corvette-C6-...FUNtnI&vxp=mtr
This is what the module looks like. http://www.ebay.com/itm/Corvette-C6-...FUNtnI&vxp=mtr
Last edited by KENS80V; Sep 10, 2016 at 10:13 AM.
