po1233 and p0122 lots of hesitation HELP!!!!!

[pj2099]

so i bought my first mustang a 01 v6 3.8 convertible and the second day i own it i start to pull these 2 codes po1233 and p0122 and let me tell you there is huge hesitation when accelerating, like it bucks unless im under almost wide open throttle can these 2 codes cause this????? now what i have replaced....

mass air flow sensor
tps
pcv valve
erg valve and sensor
fuel filter
and i also tested my coil and it reads a 10.7 resistance
also i put in new bosh spark plugs

the plug wires dont seem to look that old and i feel like it wont change anything but some one please help because this being my first mustang i dont know much about it :/

 

[pj2099]

also to add my obd reader states 4 ready tests and 4 incomplete test and i have put 400 miles on it trying to complete all tests and it wont budge related issue or separate one all together????

 

[wmburns]

Ok, first check all of the fuses.

Double check the DTC codes posted. The P1233 is a disabled fuel system. I doubt the car would run at all.

However the P0122 indicates a problem with the TPS sensor. Since the sensor has already been replaced, we should look for other causes. Check the TPS electrical connector. Look for bent/pushed pins. Clean the connector with electrical contact cleaner and re-grease with a small amount of di-electric grease (same kind as used on spark plugs). Inspect the wiring harness looking for any evidence of damage (water or rodent).

Do you have an after market throttle body or any other "mods"?

If the DTC codes are correct, then there's a real possibility the Fuel pump driver module has a problem or the PCM is F'ed up.

OBTW, the readiness tests will never complete as long as there are outstanding DTC's.

>>
P0122 - Throttle Position (TP) Circuit Low Input
The TP sensor circuit is monitored by the PCM for a low TP rotation angle (or voltage) input through the comprehensive component monitor (CCM). If during key ON engine OFF or key ON engine running the TP rotation angle (or voltage) changes below a minimum calibrated limit, the test fails. TP sensor not seated properly

TP circuit open to PCM
VREF open to TP sensor
TP circuit short to GND
Damaged TP sensor
Damaged PCM

P1233 - Fuel System Disabled or Offline
LS6/LS8:
For LS6/LS8, P1233 indicates the PCM is not receiving the fuel level information on SCP from the rear electronics module (REM). Refer to the Workshop Manual Section 413-01 for diagnostics.
All Others:
The PCM monitors the fuel pump monitor (FPM) circuit from the fuel pump driver module (FPDM). With the key on, the FPDM continuously sends a duty cycle signal to the PCM through the FPM circuit. The test fails if the PCM stops receiving the duty cycle signal. Inertia fuel shutoff (IFS) switch needs to be reset
Open FPDM ground circuit
Open or shorted FPM circuit
Damaged IFS switch
Damaged FPDM
Damaged PCM
Also for Escort/Tracer and Mustang:
Open FPDM PWR circuit
Open B+ circuit to constant control relay module (CCRM) pin 11
Open ground to CCRM pin 18 (Mustang)
Damaged CCRM
Also for Continental:
Open VPWR circuit to FPDM