I was driving to work this morning and lost power set SES light and reduced engine power warning displayed.I ran a scan and retreived the following codes,P1120,P1220,P1516 and P1518.All indicate a problem with TPS sensor.I replaced the TPS sensor and scaned the same codes.The truck will barely move under it's own power the throttle does't seem to be opening it will not idle or accelerate.I checked the fuse under the hood for the ETC it was not blown.Can anyone advise we which direction to go with my systems check?Has anyone else experienced at similar problem?Thanks in advance any help will greatly appreciated. whitt1