My new accufab throttle bodies tps sensor only goes to 4.1 V @ wot, which is registering as 91 - 92% throttle even though it's fully open, is there anyway to change the tps in the computer to see 4.1 V as 100% instead of 5 V as 100%?
My new accufab throttle bodies tps sensor only goes to 4.1 V @ wot, which is registering as 91 - 92% throttle even though it's fully open, is there anyway to change the tps in the computer to see 4.1 V as 100% instead of 5 V as 100%?
- Devon
White '99 Z28
9.09 @ 150
Is the TPS adjusted correctly at idle?
You can do a couple things.
1. Adjust everything back a tad so what is at 100% throttle to 90% throttle, cheap way to go.
2. Readjust idle TPS voltage to max and see if that gets the WOT tps voltage to where it needs to be.
3. Make a TPS fooler that you can set to whatever the TPS voltage to, outputs 5V. They used to sell these years ago, they are pretty simple to make with a comparator or a high gain op amp.
If I try and twist the tps around before bolting it down at all, it makes the voltage go down more, it's as high as it can go, and it's sitting at like .6V or .8 V or something like that at idle and goes to 4.1V @ wot.
What do you mean adjust everything back a tad? The only thing I was able to find was in the parameters section under the area where the ve table is there was an option to set wot tps % showing the minimum % the tps can be and have it still think it's at wot and I set that to 90%, but I dunno if the rest of it being off is gonna screw with my part throttle, guess it should work the same as long as I tune it with it how it is it'll just learn the new stuff and run where its' supposed too, just thinks it's at a diff percentage throttle.
- Devon
White '99 Z28
9.09 @ 150
Cant you loosen the screws that hold on the sensor and turn it so that the votlage is 0 at idle?
230" Dragster - 2000 LS1, 02020003 Speed Density, PRC 2.5 Heads,
MS3 Cam 237/242 .603/.609, Vic Jr. intake, Holley 1000CFM TB,
PowerGlide, 5000 stall converter. 8.70@154 MPH
My Projects Homepage: http://www.horsepowerracing.com
Bad TPS? Are the butterflies completely open? (I had to ask). Low battery voltage?
Lee
230" Dragster - 2000 LS1, 02020003 Speed Density, PRC 2.5 Heads,
MS3 Cam 237/242 .603/.609, Vic Jr. intake, Holley 1000CFM TB,
PowerGlide, 5000 stall converter. 8.70@154 MPH
My Projects Homepage: http://www.horsepowerracing.com
Hello, Is it Devon? I have been looking at this kind of throttle body to use w/the carb mainfold w/injectors a 100mm maf and air cleaner . Will it fit under the hood? I have a taller carbon fiber hood on 98 C5 and think this setup is the way to go. Accel and Edelbrock have something like this,Right? Try your ETC settings and try changing them to a 1 to 1 ratio IE: 2%=2%open 10%=10% open all the way up to were 98.6%=98.6% but u have to have you cable plugged into the computer, then it shows up as a red folder. I us this setting and Love it instead of the Factory slope.
98 Tigershark,
P.S. Watch out for a TAC
98 tigershark
L92/427 w/L76 CC'ed heads n upgraded springs
4.100 stroke, 4.068 bore w/ 11:1 comp
Cam, 591 int, 613exhst, 232-246dur@.050, 115*
LG headers, High flow cats,
RPM level 5 trans, RPM 3.42 gears, 2800 rpm trq convrt. .
Special Thanx to Joe and Bruce!