2007 classic 1500 5.3 P0300 at WOT

Reply Subscribe

Thread Tools

Search this Thread

Sep 15, 2015 | 06:22 PM

#11

Brandonlflr12

Thread Starter

Teching In

Joined: Sep 2015

Posts: 20

Likes: 0

I'll check fuel pressure this weekend. Anybody know the specs of pressure at the rail? And is it different at idle and highway speeds?

Sep 15, 2015 | 07:21 PM

#12

Wolftrk99

TECH Senior Member

iTrader: (5)

Joined: Jun 2013

Posts: 5,492

Likes: 48

From: Virginia Beach,VA

55-62 psi

Sep 15, 2015 | 07:26 PM

#13

Wolftrk99

TECH Senior Member

iTrader: (5)

Joined: Jun 2013

Posts: 5,492

Likes: 48

From: Virginia Beach,VA

Should stay within that range, even at 3000 rpm may drop some but should recover...

Sep 15, 2015 | 08:37 PM

#14

Brandonlflr12

Thread Starter

Teching In

Joined: Sep 2015

Posts: 20

Likes: 0

Ok thanks. I'll try and check that this weekend. Now I'm getting a PO101 code and idk if it's bc I cleaned my MAF sensor today or that's been a problem and it just showed a code today. I'm not sure.

Sep 16, 2015 | 12:44 AM

#15

Wolftrk99

TECH Senior Member

iTrader: (5)

Joined: Jun 2013

Posts: 5,492

Likes: 48

From: Virginia Beach,VA

Could all be related....

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

4L70E shift problems

ferrellrooster

GM Drivetrain & Suspension

Mar 6, 2025 03:22 PM

4x4 4L80e swap 2007c Vmax

chadjcompton

GM Engine & Exhaust Performance

Jun 21, 2022 08:47 PM

Shifting issues after high stall converter install

LCHEE

GM Drivetrain & Suspension

Oct 24, 2020 04:10 PM

07 Classic 4.8 2wd

Cm_gmt800

GM Engine & Exhaust Performance

Aug 3, 2015 09:13 PM

Boosted 370

121

FORCED INDUCTION

Jul 16, 2015 12:18 AM

Reply Share

First
Prev
2 / 2
Next
Last