2001 tach problems
 

swaped 2001 engine and installed 2000 engine used ecu of of 2001 found out no tone ring on cam checked 2000 engine has tone ring on crank instaled crank sensor still tach works at firs then quits checked has five volts to crank sensor and when engine is at idle has about 34 milavolts and when engine is speed up milavolts go up checked and took ohm readings ground was good and took reedings to wire to the ecm was good engine starts alltinator charges just the tach problem i reed long time ago that if you did a swap you had to run the wires from the crank sensor to a difrent lokation on the ecu please help daught takes this truck to collage and neds to pull her horse trailer

not sure about the wires but pick up a manual for your truck from your local auto parts store, or just look through one. They have a wiring diagram inside it that will tell you what wire goes where, it s a pain to read through but it beats guessing. I'd look in mine and tell you but I do not have it with me

tach
 

after many hours of trial and error i have came to the conclusion that i need to put the cam shaft for the 2001 back in the the ecm looks at the crank angle sensor difrently than it would the cam sensor and since that truck only had the cam sensor when i plug the cam sensor to the crank sensor engine runs bad and tack quits i even tried useing a pick up un the balacer i think the problem is that truck starts on pick up from the vp44 and then switches to the cam sensor and if you trie to use the crank sensor it doesnt see it wright becuse the tone ring on the cam sensor has more pulses than the crank and the ecm doesnt like it becuse it is making a comparason to the cam and the vp at the same time i even tride to put the crank sensor to the plugs that would of been used if that truck had one but the ecm dosent recognize it becusde it wasnt programed for it so i think my final cunclusion is to put the 2001 cam in unless any body else can think of a difrent way to make the ecm recognize it properly so the tach works and trans will shift and engine will produce proper power thanks

tach
 

put the cam for the 2001 in with ton ring instaled new cam sensor tach still doesnt work if you unplug the cam sensor it works for a second then quits or if it is pluged in and you clear the code cam sensor code i think it is o341 it will work for a coupple of seconds and quit check fo countinuity from plug to ecm but dont know how to check from there or how to test cam sensor for proper operration and not shure of the wiring beond the inputs for the ecm starting to wonder if i need to have the ecm flashed if anbody has any ideas or sugestins or know the most honest placed neer buckey az or where i can go online to get a copie of the scamatics it would be much help thanks:argh::argh:

dodge says needs new ecm

the timing gear housin where the cam sensor goes was in a diffrent spot about .125 of an inch cam sensor couldint pick up on tone ring dodge said it would take them 18 hours to pull cam and replace housing i didnt with the help from daughter and her boyfriend in 6 all works well:tu:

I DON'T KNOW IF YOU WILL CHECK THIS SITE OUT, BUT I AM HAVING THE SAME ISSUES. I HAVE CHANGED ENGINES FROM 2001 TO A 2000 REPLACEMENT ENGINE. I WAS INSTRUCTED TO CHANGE CRANK GEAR TO SOLVE PROBLEM. THAT WAS A NEGATIVE. I SEE HERE YOU CHANGED THE TIMING GEAR CASE, ALSO. I WOULD LIKE TO KNOW IF THERE IS GOING TO BE ANYTHING ELSE I WILL HAVE TO CHANGE. IF YOU WANT TO CONTACT ME BY PHONE MY NO. IS 318-992-3859, DAN STRINGER