Bad TPS?
12-22-2008, 08:25 AM
#1
TECH Enthusiast
Thread Starter
iTrader: (6)
Join Date: Aug 2005
Location: Robertsdale,AL.
Posts: 664
Likes: 0
Received 0 Likes
on
0 Posts
Bad TPS? I am having issues with my TPS on my FAST 90mm throttle body. I had it on the dyno the other day and with the key in the "on" position the TPS is acting fine; but when we start the car and is running the sensor is VERY hesisitant and only reads about 3% under 50% open. When we shut the car back off and just have the ignition in the "on" position it will be reading ok!!! Any ideas?
12-22-2008, 12:22 PM
#2
10 Second Club
Join Date: Aug 2005
Location: Tennessee Tech
Posts: 567
Likes: 0
Received 0 Likes
on
0 Posts
I am having issues with my TPS on my FAST 90mm throttle body. I had it on the dyno the other day and with the key in the "on" position the TPS is acting fine; but when we start the car and is running the sensor is VERY hesisitant and only reads about 3% under 50% open. When we shut the car back off and just have the ignition in the "on" position it will be reading ok!!! Any ideas?
12-25-2008, 12:23 AM
#3
TECH Enthusiast
Thread Starter
iTrader: (6)
Join Date: Aug 2005
Location: Robertsdale,AL.
Posts: 664
Likes: 0
Received 0 Likes
on
0 Posts
I checked with FAST. They wanted like 60 - 90 bucks for a new one. I can't remember what is was, but it was EXPENSIVE! What TPS is in the FAST T/B? Or should i just get a cheap stocker an see if it helps?
01-13-2009, 07:11 PM
#4
TECH Enthusiast
Thread Starter
iTrader: (6)
Join Date: Aug 2005
Location: Robertsdale,AL.
Posts: 664
Likes: 0
Received 0 Likes
on
0 Posts
I replaced the TPS and it has low voltage with (key on,engine off) and the tuner is telling me the voltage needs to be at .59 volts and 0% on the TPS gauge on my EFI Live. How do i get the voltage up on the senser without moving the throttle blade open?
01-14-2009, 03:49 PM
#5
TECH Enthusiast
Thread Starter
iTrader: (6)
Join Date: Aug 2005
Location: Robertsdale,AL.
Posts: 664
Likes: 0
Received 0 Likes
on
0 Posts
Ok, i just turned in the screw on the t/b to show the .59 volts at the tps. At wot it reads 4.19 volts. Also pulled the pcm ign to reset the pcm and it reads 0% on the EFI Live with the .59 volts. Now i just to reset the desired idle right? ANYONE? I started the car and it idles at 1500 rpms.
