I have a 09 equinox AWD and it's in limp mode and I have replaced the crank sensor cam sensor both transmission speed sensors tmc emc EGR timing chain and guides shift solenoids and tac doesn't work and it's in limp mode it's saying that there's no signal from output shaft speed sensor and I checked the wires it started out as a 2nd gear shift solenoid and I need help with ideas please

 

Can you be a little more specific please?

why?

what is saying? Please post any trouble codes you got.



what do you mean? What started out?

 

P722 is the code no signal but the tech doesn't work either and the person who had it before me when it went into limp mode the EGR was bad and had to be replaced the 1st code was the shift solenoid the codes have changed and I don't have any codes about the tach not working so I change sensors that would be the cause and by what other people have had to do to fix the problem I have also changed the transmission fluid and tried another new sensor incase it was a bad one from the parts store the ecm and tcm was bought from a company that you gave the vin so they programmed them and made sure the were updated

 

yeesh. Throw the odd period in this hard to read mess would ya.
How many miles on the transmission?

How did you check them?
I would get an electrical schematic (charm.li) . Measure resistance between the sensor and TCM connector with a multimeter. Ensure sensor has good ground and reference voltage (if applicable). If necessary, scope probe the VSS square wave signal at the TCM. If good signal is measure then it's a faulty TCM.