Need help few check engine codes on..
04-04-2011, 03:44 PM
#1
Staging Lane
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Need help few check engine codes on.. car runs good but if i go WOT it acts like it loses power or something sometimes idk. On certain days it has a hard first start (like it wont start) but when i crank it again it fires up normal..the guy i bought it from never had it checked out but said if he had to guess that maybe its the fuel pump or fuel pressure regulator i dont what it could be and all help is very much appreciated thanks guys.
CODES I HAVE ON RIGHT NOW.
code 1) P0103
code 2) P0118
Code 3) P0122
code 4) P0135
CODES I HAVE ON RIGHT NOW.
code 1) P0103
code 2) P0118
Code 3) P0122
code 4) P0135
04-04-2011, 04:31 PM
#2
No start cold is most likliy the coolant temp sensor.
P0103 Mass or Volume Air Flow Circuit High Input
P0118 Engine Coolant Temperature Circuit High Input
P0122 Throttle Position Sensor/Switch A Circuit Low Input
P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0103 Mass or Volume Air Flow Circuit High Input
P0118 Engine Coolant Temperature Circuit High Input
P0122 Throttle Position Sensor/Switch A Circuit Low Input
P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
04-04-2011, 04:37 PM
#3
Staging Lane
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No start cold is most likliy the coolant temp sensor.
P0103 Mass or Volume Air Flow Circuit High Input
P0118 Engine Coolant Temperature Circuit High Input
P0122 Throttle Position Sensor/Switch A Circuit Low Input
P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0103 Mass or Volume Air Flow Circuit High Input
P0118 Engine Coolant Temperature Circuit High Input
P0122 Throttle Position Sensor/Switch A Circuit Low Input
P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
and i forgot to mention the car has long tube headers on it already also
04-04-2011, 04:50 PM
#5
Staging Lane
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ok im gonna go check now...because i put a new coolant temp sensor in and it wont work so i kinda thought maybe a wire is messed up in there or something.
04-04-2011, 05:06 PM
#6
Causes: A code P0103 may mean that one or more of the following has happened:
The MAF may be disconnected, or a wiring connection may be bad
The MAF sensor may be damaged
The vehicle computer may be faulty (very rare)
Possible SolutionsThe simplest thing to do is to reset the code and see if it comes back. Then start with the cheapest, easiest repair procedures:
Verify that the Mass Air Flow Sensor wiring is connected properly and that there are no broken / frayed wires.
Inspect for any air leaks near the MAF sensor.
Take the MAF out and clean it using a spray cleaner such as brake cleaner or electrical contact cleaner. Be gentle with the sensor.
Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information)
Replace the MAF sensor.
Causes: A code P0118 may mean that one or more of the following has happened:
A bad connection at the sensor
An open in the ground circuit between the ECT sensor and the PCM
A short in the voltage feed between the sensor and the PCM
A bad PCM (less likely)
A bad temperature sensor (shorted internally)
Possible SolutionsFirst, if you have access to a scan tool, check the reading of the coolant sensor. Does it read a logical number? If so, the problem is likely intermittent. Perform a "wiggle" test by wiggling the connector and harness to the sensor while watching the reading on the scan tool. Watch for any drop-outs. Drop-outs would indicate a bad connection. If the scan tool reads an illogical temperature, check the resistance of the temperature sensor. If it is out of specs, replace it. If it is in specifications, unplug the sensor and, using a fused jumper wire, jumper the two terminals of the connector together. The temperature reading should now be maxed out to above 250 degrees F. If not, there is likely a problem with the ground circuit or voltage supply.
Check for 5 volts reference voltage at the connector. Also check for ground presence at the connector. If you do not have 5V ref. and/or ground continuity, check for these back at the PCM connector. If you have these at the PCM connector, then repair open or short between the PCM and the sensor. If you do not, remove the offending wire from the PCM and then check for proper voltage at the PCM pin. If it's present now, repair short on the circuit. If it isn't present after removing the wire and checking the pin, replace PCM
•other symptoms may also be present
Causes: A code P0122 may mean that one or more of the following has happened:
•TPS not mounted securely
•TPS circuit short to ground or another wire
•Faulty TPS
•Damaged computer (PCM)
Possible SolutionsSome recommended troubleshooting and repair steps are:
•Carefully check the throttle position sensor (TPS), wiring connector, and wiring for breaks, etc. Repair or replace as necessary
•Check the voltage at the TPS (refer to a service manual for your vehicle for specific information). If the voltage is too low that is indicative of a problem. Replace if necessary.
•If recently replaced the TPS may need to be adjusted. On some vehicles the installation instructions call for the TPS to be properly aligned or adjusted, consult a repair manual for specifics.
•If there are no symptoms at all, the problem may be intermittent and clearing the code may resolve the issue temporarily. If this is the case then you should definitely check the wiring to be sure it's not rubbing on anything, grounding, etc. The code may come back.
Causes: A code P0135 may mean that one or more of the following has happened:
•O2 Heater element resistance is high
•Internal short or open in the heater element
•O2 heater circuit wiring high resistance
•open or short to ground in the wiring harness
Possible Solutions•Repair short or open or high resistance in wiring harness or harness connectors
•Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)
The MAF may be disconnected, or a wiring connection may be bad
The MAF sensor may be damaged
The vehicle computer may be faulty (very rare)
Possible SolutionsThe simplest thing to do is to reset the code and see if it comes back. Then start with the cheapest, easiest repair procedures:
Verify that the Mass Air Flow Sensor wiring is connected properly and that there are no broken / frayed wires.
Inspect for any air leaks near the MAF sensor.
Take the MAF out and clean it using a spray cleaner such as brake cleaner or electrical contact cleaner. Be gentle with the sensor.
Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information)
Replace the MAF sensor.
Causes: A code P0118 may mean that one or more of the following has happened:
A bad connection at the sensor
An open in the ground circuit between the ECT sensor and the PCM
A short in the voltage feed between the sensor and the PCM
A bad PCM (less likely)
A bad temperature sensor (shorted internally)
Possible SolutionsFirst, if you have access to a scan tool, check the reading of the coolant sensor. Does it read a logical number? If so, the problem is likely intermittent. Perform a "wiggle" test by wiggling the connector and harness to the sensor while watching the reading on the scan tool. Watch for any drop-outs. Drop-outs would indicate a bad connection. If the scan tool reads an illogical temperature, check the resistance of the temperature sensor. If it is out of specs, replace it. If it is in specifications, unplug the sensor and, using a fused jumper wire, jumper the two terminals of the connector together. The temperature reading should now be maxed out to above 250 degrees F. If not, there is likely a problem with the ground circuit or voltage supply.
Check for 5 volts reference voltage at the connector. Also check for ground presence at the connector. If you do not have 5V ref. and/or ground continuity, check for these back at the PCM connector. If you have these at the PCM connector, then repair open or short between the PCM and the sensor. If you do not, remove the offending wire from the PCM and then check for proper voltage at the PCM pin. If it's present now, repair short on the circuit. If it isn't present after removing the wire and checking the pin, replace PCM
•other symptoms may also be present
Causes: A code P0122 may mean that one or more of the following has happened:
•TPS not mounted securely
•TPS circuit short to ground or another wire
•Faulty TPS
•Damaged computer (PCM)
Possible SolutionsSome recommended troubleshooting and repair steps are:
•Carefully check the throttle position sensor (TPS), wiring connector, and wiring for breaks, etc. Repair or replace as necessary
•Check the voltage at the TPS (refer to a service manual for your vehicle for specific information). If the voltage is too low that is indicative of a problem. Replace if necessary.
•If recently replaced the TPS may need to be adjusted. On some vehicles the installation instructions call for the TPS to be properly aligned or adjusted, consult a repair manual for specifics.
•If there are no symptoms at all, the problem may be intermittent and clearing the code may resolve the issue temporarily. If this is the case then you should definitely check the wiring to be sure it's not rubbing on anything, grounding, etc. The code may come back.
Causes: A code P0135 may mean that one or more of the following has happened:
•O2 Heater element resistance is high
•Internal short or open in the heater element
•O2 heater circuit wiring high resistance
•open or short to ground in the wiring harness
Possible Solutions•Repair short or open or high resistance in wiring harness or harness connectors
•Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)
04-04-2011, 05:27 PM
#7
Staging Lane
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I tried to look for the burnt wire but my car is entirely to low I'm gonna wait till I get to my house..thanks for all your help now I have an idea on where to start
