did the "hot foot" mod today
#1
did the "hot foot" mod today
i almost forgot i did the pedal mod today.......
before i started my off throttle app read .54 and wot was 3.98v
i did a combination of the tried and true "drill the inserts out" and "egg the holes" in the app sensor and tj's 6mm bolt method.
- i removed the aluminum inserts from the app sensor adn egged the holes slighty. reattached and measure app. i redid this 3 times to achive the numbers i wanted.
-next i went to tims method, i didnt have any 6mm bolts laying around but what i did have was a several pieces of 1/4 all thread from my carburator aircleaner studs.... go figure, they are a perfect fit. ground the peened end off the throttle stop and opened the hole slightly to allow the allthread to fit. installed it and double nutted both ends to keep it from workin loose.
- i ended up with perfection. as soon as i apply throttle i gain perfect control of engine rpm, no rise or drop in engine speed as you typicly get with the normal powerstroke pedal. and now my wot app voltage is 4.48, i turned it back a hair cause when i hit 4.5 i set a code, aparently the pcm didnt like that too much. i havnt driven the truck on the road yet so tomarrow i can report any differences that i may notice in performance.
before i started my off throttle app read .54 and wot was 3.98v
i did a combination of the tried and true "drill the inserts out" and "egg the holes" in the app sensor and tj's 6mm bolt method.
- i removed the aluminum inserts from the app sensor adn egged the holes slighty. reattached and measure app. i redid this 3 times to achive the numbers i wanted.
-next i went to tims method, i didnt have any 6mm bolts laying around but what i did have was a several pieces of 1/4 all thread from my carburator aircleaner studs.... go figure, they are a perfect fit. ground the peened end off the throttle stop and opened the hole slightly to allow the allthread to fit. installed it and double nutted both ends to keep it from workin loose.
- i ended up with perfection. as soon as i apply throttle i gain perfect control of engine rpm, no rise or drop in engine speed as you typicly get with the normal powerstroke pedal. and now my wot app voltage is 4.48, i turned it back a hair cause when i hit 4.5 i set a code, aparently the pcm didnt like that too much. i havnt driven the truck on the road yet so tomarrow i can report any differences that i may notice in performance.
#6
There are 2 benefits, Bending the IVS tab out a bit will give you throttle sooner, and not have to push the pedal down a bit to start going.
ALSO most truck can't achieve actual WOT from the factory. Re-adjusting the TPS by drilling out the bushings and turning the TPS will allow throttle sooner, and more power from your right foot. Make since?
-Robb
ALSO most truck can't achieve actual WOT from the factory. Re-adjusting the TPS by drilling out the bushings and turning the TPS will allow throttle sooner, and more power from your right foot. Make since?
-Robb
#7
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#8
it was well worth it, i need to readjust the ivs tab litterally a hair. its so sensitve that it doesnt wuite make enough contact sometimes in the closed throttle position so when you start it in the "part throttle" position you have no throttle until the ivs is reset. a quick throttle snap is all it take son mine so i just need a tweek of the pedal tab. other then that i am very happy with the mod. the biggest change is again in top end performance. the truck pulls much harder in higher gears now. i am very pleased with the change. it seems like its video time!
#9
its so sensitve that it doesnt wuite make enough contact sometimes in the closed throttle position so when you start it in the "part throttle" position you have no throttle until the ivs is reset. a quick throttle snap is all it take son mine so i just need a tweek of the pedal tab.
-Robb
#10
#12
#13
You need to put a voltmeter across the GY/W and the GY/R wires on the connector to the TPS. With the key on, watch the voltage across the range of the throttle to see if there is any flat spots. You should see no less than .37 volts at idle position and no more than 4.5 volts at full throttle. The the third wire, (BRN/W), is the ref. voltage and should be 5 volts all the time.