© Copyright 1995 thru 2008 - The Mustang Works™. All Rights Reserved.
MustangWorks.com is designed and hosted by Aero3 Media.
MustangWorks.com is designed and hosted by Aero3 Media.
10-23-2003, 04:42 PM | #1 |
Registered Member
Join Date: May 2001
Location: Antioch, CA 94521
Posts: 181
|
Rev limiter or VSS, what is causing this problem!!!
With 3.73s on my car and my chip tuned for them I was able to go to 6000rpms without hitting the rev limiter, no problem.
Now I have 4.10s on, my chip is still tuned for 3.73s and the car is acting like it hits a rev limiter at 5400rpms. How is this possible. Could this be a VSS problem. My speedo is off by possibly 15mph. I'm getting the speedo fixed today. This is a 94 GT Convert w/aode. You can see all my mods in the sig. Please give me some ideas cause I don't have any. Thanks, Tony
__________________
N/A 94 GT vert w/aode...12.19 @110 w1.67 60' Some bolt ons |
10-23-2003, 09:29 PM | #2 |
Registered Member
Join Date: Jun 2003
Location: Wisconsin
Posts: 348
|
i didnt think the 5.0liters had a VSS sensor cause isnt that the one that mounts near the tire to tell the speed. its gotta be your chip!
__________________
92 Mustang GT, 347 Stroker(Forged Steel Crank/Rods-Balanced, Forged Aluminum Dished Pistons), Trick Flow Track Heat Intake, Trick Flow Twisted Wedge Heads w/ Stage 3 port/polish, 80mm C&L MAF, FMS 30# Inj., BBK AFPR, Trick Flow Stage 2 Cam, Trick Flow 1.6R Rockers, BBK E.L. Headers, Flowmaster Cat-Back, MAC CAI, FMS Pulleys, Griffin Alum. Radiator, MSD Pro-Billet Distributor; AOD, Dynamic 3300 Lockup Converter, B & M Super Cooler, B&M Ratchet Shifter; 3:73 gears. |
10-23-2003, 11:04 PM | #3 |
Registered Member
Join Date: May 2001
Location: Antioch, CA 94521
Posts: 181
|
I've heard from several mechanics and other members on a few boards that there is a VSS and it's possible that the speedo being off could cause this problem.
The chip could be the problem too though. But I don't know how the rev limiter setting could have lowered on it's own because I use to be able to take it up to 6000rpms but can only to to 5400 now. I guess anything's possible though. Thanks, Tony
__________________
N/A 94 GT vert w/aode...12.19 @110 w1.67 60' Some bolt ons |
10-24-2003, 06:55 AM | #4 |
Moderator
Join Date: Aug 2000
Location: Milan, OH
Posts: 2,699
|
Yep, its the VSS. The VSS is actually integral with the speedometer cable, not wheel mounted. I think you're confusing that with the ABS sensor. You'll need to have your chip reprogrammed for the gear change. You could get a Bauminator which I believe gives you control over the gearing input so that you won't have to have the chip reprogrammed every time you change gears.
__________________
Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!" |
10-24-2003, 12:22 PM | #5 |
Registered Member
Join Date: May 2001
Location: Antioch, CA 94521
Posts: 181
|
The speedo should be working later today...
I won't be able to get the chip reburned for probably a month so I'm hoping that fixing the speedo made it at least a little better. thanks, Tony
__________________
N/A 94 GT vert w/aode...12.19 @110 w1.67 60' Some bolt ons |
10-27-2003, 11:31 PM | #6 |
Registered Member
Join Date: May 2001
Location: Antioch, CA 94521
Posts: 181
|
I got the speedo corrected today and it didn't help any. I guess I have to re-schedule time with the tuner and have the shift points and rev limiter checked. This is driving me crazy.
__________________
N/A 94 GT vert w/aode...12.19 @110 w1.67 60' Some bolt ons |
10-28-2003, 12:49 AM | #7 |
Registered Member
Join Date: May 2001
Location: Antioch, CA 94521
Posts: 181
|
Could it just be that my stock tach is way off???
My 10/11/03 dyno printout shows peak power at 5800rpms. I can only get to 5400rpms when driving on the street.
__________________
N/A 94 GT vert w/aode...12.19 @110 w1.67 60' Some bolt ons |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
follow up to horrible vibration problem | Toeclicker | Windsor Power | 4 | 12-18-2003 06:38 PM |
Please help stutering problem | Just me | Windsor Power | 10 | 10-18-2002 02:37 PM |
help diagnose problem | RB92GT | Windsor Power | 2 | 06-08-2002 04:53 PM |
Surging Problem - Help | Lawless | Windsor Power | 32 | 08-19-2001 10:57 PM |
Problem revving engine. Skips to rev limiter | Rebel79 | Windsor Power | 7 | 03-09-2001 05:22 PM |