car code po240

tomtaz708
0

Asked by tomtaz708 Mar 06, 2013 at 05:58 AM about the 2000 Mercury Cougar 2 Dr V6 Hatchback

Question type: Maintenance & Repair

3 Answers

tenspeed
65,575

P0240 - Turbocharger/Supercharger Boost Sensor 'B' Circuit Range/Performance -- This diagnostic trouble code (DTC) P0240 will set if the boost pressure sensor signal is above the predicted range. -- The boost pressure sensor responds to pressure changes in the intake manifold. This pressure is created by the turbocharger and changes with accelerator pedal position (APP) and engine speed. The engine control module (ECM) uses this information to assist in diagnosis of the barometric pressure (BARO) sensor and to provide engine overboost protection. The boost pressure sensor has a 5-volt reference circuit, a low reference circuit, and a signal circuit. The engine control module (ECM) supplies 5 volts to the boost pressure sensor on the 5-volt reference 2 circuit, and provides a ground on a low reference circuit. The boost pressure sensor provides a signal to the ECM on a signal circuit relative to the pressure changes. The ECM monitors the boost pressure sensor signal for voltage outside of the normal range. The ECM calculates a predicted value for the boost pressure sensor. The ECM then compares the predicted value to the actual signal.

tenspeed
65,575

Possible causes: Boost pressure sensor harness is open or shorted - Boost pressure sensor circuit poor electrical connection - Faulty boost pressure sensor - Faulty Turbo/Super Charger - Engine over temperature - Ignition misfire exceeds the calibrated threshold - Faulty Knock sensor (KS)

tomtaz708
0

Hello tenspeed I am still having problems finding code p0240. The ford service tech states p0234 as a supercharger boost condition which I believe do not have and po243 supercharger boost bypass solenoid circuit malfunction but no p0240.

Your Answer

Add photo

Related Questions

  • engene light on

    le puse la computadora y tiene 3 codigo po135 po240 y po496 nesecito saber que puedo hacer para resolver el problema satrun astra 2008 xe

    2008 Saturn Astra XE

    -

    Maintenance & Repair

Cougar
Looking for a Used Cougar in your area?
CarGurus has 257 nationwide Cougar listings starting at $1,750.
ZIP:

Search Mercury Cougar Questions

Mercury Cougar Experts

#1 lisagayle
lisagayle
Reputation 1,630
#2 Jessica Cornelison
Jessica Cornelison
Reputation 420
#3 Tom Demyan
Tom Demyan
Reputation 390
View All

Related Models For Sale

Used Ford Mustang"
646 Great Deals out of 34,182 listings starting at $995
Used Chevrolet Camaro"
472 Great Deals out of 34,467 listings starting at $1,595
Used Mitsubishi Eclipse"
55 Great Deals out of 1,568 listings starting at $1,900
Used Ford Focus"
1,065 Great Deals out of 56,093 listings starting at $1,000
Used Mercury Grand Marquis"
76 Great Deals out of 2,481 listings starting at $500
Used Pontiac Grand Prix"
128 Great Deals out of 3,931 listings starting at $1,900
Used Chevrolet Impala"
1,215 Great Deals out of 56,804 listings starting at $1,295
Used Toyota Celica"
15 Great Deals out of 406 listings starting at $2,200
Used Hyundai Tiburon"
23 Great Deals out of 688 listings starting at $2,800
Used Cadillac DeVille"
42 Great Deals out of 2,132 listings starting at $1,650