Rev limiter whats it set at factory
Thread Starter
On The Tree
Joined: Mar 2003
Posts: 153
Likes: 0
From: Mechanicsville, VA
Rev limiter whats it set at factory When I try to go WOT car does fine till around 4200 - 4400 rpms then just studders till I let off gas. 
In edit it says it's 6800. I am not getting there, no knock either. Just installed 2 new KR sensors. Sometimes I can get more rpms if I don't punch it, but where the fun in that. 
In edit it says it's 6800. I am not getting there, no knock either. Just installed 2 new KR sensors. Sometimes I can get more rpms if I don't punch it, but where the fun in that. 
Moderator
Joined: Nov 2001
Posts: 3,048
Likes: 12
From: Raleigh, NC
Re: Rev limiter whats it set at factory Do you ever get TPS Sensor Ckt failures?
I have a similar problem that is intermittent, and even though I replaced the TPS, I still get it from time to time.
My car will sometimes upshift early. Sometimes it will go from 1st at 3700 or so, to 2nd, then upshift to 3rd at aroudn 4600 or so. Then I get the shuddering from the motor trying to send the car down the track at the bottom of 3rd... very frustrating.
Sometimes, if it is in 4th or 3rd already, it won't downshift when I WOT, and I get that same lugging. KR factors in with that abnormal load, for me, too.
If I manually shift it, it goes, but when I upshift, it is not immediate, so I don't feel I have control of that situation either. I found if I wait til about 6000 RPMs and upshift, it will usually shift about where I put the shiftpoints.
More detailed info on my problem is here:
HELP! Short-Shifting out the hole - any ideas?
https://ls1tech.com/threads/showflat...o=&fpart=1
I have a similar problem that is intermittent, and even though I replaced the TPS, I still get it from time to time.
My car will sometimes upshift early. Sometimes it will go from 1st at 3700 or so, to 2nd, then upshift to 3rd at aroudn 4600 or so. Then I get the shuddering from the motor trying to send the car down the track at the bottom of 3rd... very frustrating.
Sometimes, if it is in 4th or 3rd already, it won't downshift when I WOT, and I get that same lugging. KR factors in with that abnormal load, for me, too.
If I manually shift it, it goes, but when I upshift, it is not immediate, so I don't feel I have control of that situation either. I found if I wait til about 6000 RPMs and upshift, it will usually shift about where I put the shiftpoints.
More detailed info on my problem is here:
HELP! Short-Shifting out the hole - any ideas?
https://ls1tech.com/threads/showflat...o=&fpart=1
Thread Starter
On The Tree
Joined: Mar 2003
Posts: 153
Likes: 0
From: Mechanicsville, VA
Re: Rev limiter whats it set at factory New filter, no codes and I haven't tried cleaning injectors yet. On this matter found out fuel pressure drops to 50psi or so when rev motor, haven't tried checking it while driving yet. I'm thinking this is my problem what do think? Think it's time for a external pressure regulator. BTW new gas tank w/ new Walbro pump. Filter is a C5 filter w/built in regulator.
