What controls GP on time

Reply Subscribe

Thread Tools

Search this Thread

Sep 21, 2007 | 10:25 PM

zvacsource

Thread Starter

New User

Joined: Sep 2007

Posts: 18

Likes: 0

What controls GP on time

Can anybody tell me what sensor controls the amount of time the GPs stay on? And where is it?.....95 CC PSD

Sep 21, 2007 | 10:29 PM

c00nhunterjoe

Lead Driver

Joined: May 2007

Posts: 8,608

Likes: 13

From: Belair md

engine oil temp- located on the backside of the high pressure pump resevoir, 2 wire connector, and intake air temp sensor- located in stock airbox. the pcm takes those 2 readings and determines on-time from there, it also uses those sensors for exhaust backpressure valve activation too

Sep 21, 2007 | 10:35 PM

fuelman

Elder User

Joined: Dec 2004

Posts: 891

Likes: 1

From: Toulon,Il.

What happens to gp control if you do eot mod to advance timing.Haven't done anything like this just dawned on me when you mentioned eot?

Sep 21, 2007 | 10:39 PM

fuelman

Elder User

Joined: Dec 2004

Posts: 891

Likes: 1

From: Toulon,Il.

I guess after thinking about it ,it would just cycle longer because it would think its cooler outside.right?

Sep 21, 2007 | 10:51 PM

zvacsource

Thread Starter

New User

Joined: Sep 2007

Posts: 18

Likes: 0

Thanks, what is the mod for EOT? Somewhere in this forum it was advised to un plug the exhaust valve, is this advisable?

Sep 22, 2007 | 06:50 AM

Cuda_jim

Post Fiend

Joined: Oct 2003

Posts: 5,903

Likes: 1

From: MICHIGAN

Definatly unplug the EBPV. It's supposed to aid engine warm up but causes more trouble than it's worth. The EOT mod tricks the PCM into thinking the engine oil is still cold. The PCM adds more fuel and advances the injector timing but the higher RPM's suffer.

BTW: The Barometric Pressure (BARO) Sensor controls the GP not the IAT.

The glow plug system is electronically controlled by the powertrain control module. The powertrain control module energizes the glow plugs immediately after the key is placed in the ON position and then determines how long the glow plugs will be on according to the engine oil temperature and the barometric pressure. The required time for the glow plugs to be energized decreases as the engine oil temperature and barometric pressure increase.