I just took my car (oldmobile ninety-ehgty 1996) through inspection. It failed. My engine light came. My paperwork has two codes that has to deal with the problem. Could you tell me what they mean and what I have to get fixed. P0336 and P0442 Thanks.
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Re: failed inspection due to codes P0336 and P0442
PO336 IS THE CRANKSHAFT POSITION SENSOR WHICH SHOULD BE THE ANSWER TO PASSING INSPECTION SINCE IT IS A PERFORMANCE ISSUE. IT IS RESPONSIBLE FOR FUEL INJECTION AND SPARK PULSE. REPLACING IT SHOULD HELP TO REDUCE EMISSIONS. AND THE SECOND CODE IS AN EVAP LEAK,SMALL. HOPE THIS HELPS. LET ME KNOW. BEST OF LUCK
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P0442 FORD - Evaporative Emission System Leak Detected Small Leak
Possible causes- Missing or loose fuel cap - Incorrect fuel filler cap used - Fuel filler cap remains open or fails to close - Foreign matter caught in fuel filler cap - EVAP canister or fuel tank leaks - EVAP system hose leaking - Fuel tank leaking P0136 - O2 Sensor Circuit Malfunction Bank 1 Sensor 2 Possible causes- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted - Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection - Faulty Rear Heated Oxygen Sensor Bank 1 - Inappropriate fuel pressure - Faulty fuel injectors - Intake air leaks may be faulty - Exhaust gas leaks
P0141 FORD - O2 Heater Circuit Bank 1 Sensor 2
Possible causes- Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit fuse - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit open shorted to ground - Heated Oxygen Sensor (H2OS) Bank 1 Sensor 2 circuit poor electrical connection - Faulty Engine Control Module (ECM)
It is typical after diconnecting the battery/ dead battery, most of the time it takes about 10 miles for the computer to reprogram, or the prom is not reading at the computer, go to a shop and this can be replaced without replacing the complete computer
p0130 is an oxygen sensor code.
p0340 is your camshaft position sensor code
p0336 is your crankshaft position sensor code
as far as the p0130 code those usually are what i call neglected sensors that do not get replaced when they should be. this sensor is expensive but worth the money as it will help on fuel mileage.
on to the camshaft position sensor, i would start here with this. replace that sensor and when you are replacing it, inspect the sensor and make sure the electrical wires going into it are in good shape. after replacing those 2 sensors, go to a parts store who can erase your codes to turn the light off and then let us know if it comes back on and then we will go from there on the repair.
The code P0336 is crank shaft sensor performance code.The sensor could be faulty and not picking up a good signal.The after erasing the code,the problem still exists ,so it is then a pending code and when you shut the car off and restart it the code reappears.Just another idea here ,if you have not had a tune-up recently(plugs,wires,airfilter,etc.)you could get unwanted codes and your engine will not perform as it should.This could cause poor gas mileage as well.John.
Continuous Memory Diagnostic Trouble Code (DTC) P0442 indicates that a fuel
vapor leak has been detected [as small as 0.10 cm (0.04 inch)] in the
Evaporative Emission (EVAP) system. Note: Prior to performing the following diagnosis inspect the Canister
Vent Solenoid (CV) for contamination. A situation may exist where contamination
holds open the Canister Vent (CV) solenoid enough to set DTC P0442 and also
plugs the port to atmosphere enough to keep system from being vented quickly.
After market parts and accessories nonconforming to the EVAP system
Damaged, cross threaded or loosely installed fuel filler cap.
Small holes or cuts in fuel vapor hoses/tubes (EVAP canister tube, EVAP
canister outlet tube or EVAP return tube) in the EVAP system.
Loose fuel vapor hose/tube connections to EVAP system components.
EVAP system component [EVAP canister purge valve, fuel tank pressure (FTP)
sensor, canister vent (CV) solenoid, fuel vapor control valve tube assembly or
fuel vapor vent valve assembly] seals leaking.
CV solenoid partially open when commanded closed.
EVAP canister leaking.
Check for presence of fuel filler cap.
Verify that the CV solenoid is properly seated on the EVAP canister (if
Visually inspect for cut or loose connections to fuel vapor hoses/tubes in
EVAP canister to EVAP canister purge valve.
EVAP canister to fuel vapor vent valve assembly.
fuel vapor control valve tube assembly to fuel tank (if applicable).
p0442 is not a volvo read code? converted to volvo it would read ecm 4308 small fuel leak/ start by replacing the gas cap and resetting it all/volvo scan tool can run a instant pressure test and see if it pass or fail after passing run car 200 miles before emission test to complete drive cycle