throtle lag?

[jakemprater]

sometimes when i press the gas it lags then takes off. any idea what it is??

 

[flareside_thunder]

Check your voltage at the TPS......

 

[fatherdoug]

Yes, increasing the voltage on the TPS solved that problem for me, thanks to a really good reference article from Junior.

 

[LEB Paul]

Some more info on the truck might be useful as well.

 

[jakemprater]

5.0 2wd. cut off one cat. 5spd. no momotor mods yet. how do i adjust the tps (thats throttle positioning right??) how do i know how much to adjust it??

 

[flareside_thunder]

Some vehicles came with an adjustable TPS, other you might need to trim the hole out with a dremel to make variable slots...I'll get that link.

EDIT: http://www.f150online.com/forums/li...ur-tps-voltage-single-bore-throttle-body.html

 

[jakemprater]

thanks but what about dual bore TB's?

 

[flareside_thunder]

The TPS adjustment is completely the same...

 

[odogf150]

OR.... take off th intake tubes and have a buddy rev it and see if anythig is sticking or lagging

 

[odogf150]

that was my problem . mines an auto tho

 

[Alvin in AZ]

Some vehicles came with an adjustable TPS, other you might need to
trim the hole out with a dremel to make variable slots...I'll get that link.

EDIT: http://www.f150online.com/forums/li...ur-tps-voltage-single-bore-throttle-body.html

Wow, really cool post.
Thanks for the link, it kicks butt!

You know, it wouldn't hurt to check some stuff like that -before- having
problems. (just my tinkering-nature showing?)

---------------

Anyway, how about reducing the throttle cable/pedal slop?

Since I didn't have any split-shot-lead-sinkers I made one from a .38 boolit.
Used it as a cable spacer. I put it on the "seat side" of the pedal lever to
raise the pedal off the floor more, since that makes it more-even with the
brake pedal. {edit: seat-side as opposed to firewall-side}

Thread title made me think of it is all. LOL

Alvin in AZ is a tinkering fool
ps- The boolit was a full metal jacket I'd picked up (mined!) from a shooting
range, no usable-boolits were injured in the making of the spacer.