Hey I was wondering if someone could help me I got a 89 bonneville that keeps throwing code 22,26 and the codes for 2nd 3rd and 4th gear switch. the car spits and spuders during idle and when you are driving it up a hill it will shake a little and spuder and try to downshift , replaced the computer, TPS, plugs, wires. none of this stuff made a difference just wondering if the TPS is adjusted wrong or if something else may be the case, thanks for the help.

DVM should read .38-.42v at idle and over 4.2v at wide open throttle. Should also be pretty linear in between.

what does the volt meter have to be set on to read the setting between .33 and .42 I dont think the meter goes down that low it just shows -1