P0452 is driving me crazy
I recently took my 07 Grand caravan to the shop with the po452 code. he replaced the pressure sensor switch. and wife drove it around and after about 50 miles the check engine light came back on .. with the same code .. what gives.. what could be possibles problems??? i already replace the gas cap..
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Welcome to DF
If you like I have the PDF file for code P0452. I can send it to you by email. This the shop can fix the problem. Here is part of the File. Symptom: P0452-NVLD PRESSURE SWITCH SENSE CIRCUIT LOW When Monitored and Set Condition: P0452-NVLD PRESSURE SWITCH SENSE CIRCUIT LOW When Monitored: Immediately after engine start up. Set Condition: The PCM activates the NLVD Solenoid. If PCM does not see NVLD switch open, an error is detected. One Trip Fault. POSSIBLE CAUSES GOOD TRIP EQUAL TO ZERO VEHICLE HISTORY AND SERVICE BULLETIN INVESTIGATION EVAP PURGE SOLENOID LEAKS/STUCK OPEN NVLD SWITCH OPERATION NVLD ASSEMBLY (K107) NVLD SWITCH SIGNAL CIRCUIT SHORTED TO GROUND PCM TEST ACTION APPLICABILITY 1 Start by reading PCM DTC(s) and record the related Freeze Frame data in any DTC(s) are present. Check the vehicle repair history. If the vehicle has a repair history that pertains to the customer’s current complaint, review the repair. Inspect the vehicle for any aftermarket accessories that may have been installed incorrectly. Check for any service bulletin(s) related to the customer’s complaint or DTC(s). If a service bulletin applies, follow the instructions per service bulletin. Did the service bulletin repair the customer’s complaint? All Yes ! Testing Complete. Perform POWERTRAIN VERIFICATION TEST VER - 6. No ! Go To 2 2 Check for any related TSBs before continuing. Ignition on, engine not running. With the DRBIIIt, read DTCs and record the related Freeze Frame data. Is the Good Trip Counter displayed and equal to zero? |
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