- Fri Feb 11, 2022 8:47 am
#55280
okay guys i get it the ford tfi has been done over and over again but trust me this one is different!
so i have a 90 f150 with a E4OD. theres lies the problem the Electronic controlled 4 speed overdrive auto trans. stand alone controllers are anywhere from 800 to 1500 bucks that i am NOT spending it on lol. The plan is to run the speedunio running the motor and the stock ecu (PCM) controlling the trans. so we get the pip signal is used to feed into the rpm in on speeduino with a diode but i need the pip (ignition) signal so the stock ecu will still see rpm to control the trans. Ive read (on here) that you cannot share signals so that means i couldnt share the pip signal between the two also causing another issue with sharing the tps signal (assuming using the power ground and signal on the speeduino for tps). i dont think ill need to share/split any other signals. Can i input the pip into the rpm in in the speedunio then use the tach out to pass along the pip signal to the stock ecu? if so can i do this with the tps signal too? Any other crazy ideas? Would my life be easier to just make/buy a crank wheel and hall sensor (like a 36-1) and if i did go new wheel would i still be using the spout input as ignition the same? After getting this figure out i think it should be very easy getting it wired and running.
i know poeple like psig and a few others a very tfi knowledgeable and i hope this takes off enough to get some answers.
Thank you all in advance
so i have a 90 f150 with a E4OD. theres lies the problem the Electronic controlled 4 speed overdrive auto trans. stand alone controllers are anywhere from 800 to 1500 bucks that i am NOT spending it on lol. The plan is to run the speedunio running the motor and the stock ecu (PCM) controlling the trans. so we get the pip signal is used to feed into the rpm in on speeduino with a diode but i need the pip (ignition) signal so the stock ecu will still see rpm to control the trans. Ive read (on here) that you cannot share signals so that means i couldnt share the pip signal between the two also causing another issue with sharing the tps signal (assuming using the power ground and signal on the speeduino for tps). i dont think ill need to share/split any other signals. Can i input the pip into the rpm in in the speedunio then use the tach out to pass along the pip signal to the stock ecu? if so can i do this with the tps signal too? Any other crazy ideas? Would my life be easier to just make/buy a crank wheel and hall sensor (like a 36-1) and if i did go new wheel would i still be using the spout input as ignition the same? After getting this figure out i think it should be very easy getting it wired and running.
i know poeple like psig and a few others a very tfi knowledgeable and i hope this takes off enough to get some answers.
Thank you all in advance