I have recently became owner of a 2011 fiesta. It cranks but won’t start. It’s throwing 8 codes can give if needed. They all are about the throttle voltage the throttle body and the mass air flow sensor. I changed the throttle pedal still no start. Hate to keep buying parts. Any ideas.

 

Stop buying parts!
Please list all your codes, they are important.

 

P2100—p0222—p0458—p2610—p0102—p2119—p0123
this is the codes and the whole reason for the thread was because I wasn’t going to buy any more parts I tested the pedal and it was bad why I replaced it

 

You have a lot of issues here. Most are basically related except P0458 (evap/ purge control valve/ wiring). P0102 involves the MAF sensor and/or its wiring. The one I am concerned about is P2610 which involves the PCM or its ground. You can check grounds. Your other failures involve throttle body. its components such as the stepper motor, accelerator position sensor and associated wiring. A common item for most of your codes is the PCM. I would recommend you have a competent shop look at your vehicle because this could get expensive if misdiagnosed and if the PCM is involved, reflashing may be needed.

 

As much as we would like to offer assistance there is only so much that can be offered and be worthwhile without equip to test and verify a part or parts could be defective.

With so much electrical and electronic components in newer vehicles these days it' is similar to attempting to repair your home TV set.

Most systems operate on such low voltages, that a slight poor connection prevents proper info and operation. The codes are only,"TO PROVIDE DIRECTION" NOT THAT A SENSOR IS DEFECTIVE.. If the sensor doesn't receive proper power to do it's job it can't send the proper info to the computer which makes the decision as to what to do next. So the check engine light comes on and lets us know there is a problem preventing the system from doing it's job. The code tells us where to start looking and checking.
Poor connections take the No 1 spot in most problems.

 

I have not looked into ot yet but I’m going to check all my connections and the fuse panel to ensure there is no corrosion issues and the check for broke wires not an issue for me to check wires as I am an electrician thanks for the response