Amber light:Restricted Performance no check engine light
#1
Amber light:Restricted Performance no check engine light
Just went back for vacation yesterday, everything is fine.
But this morning went up an amber light showed Restricted Performance and without check engine light.
It disapeared when my car's speed over 90KM for a while and showed up again when idle.
I can not over 3000RPM, once I reach at 3, it will shake a lot. The Scanner shows No.1 cylinder too lean sometime, theres no other codes.
Mess air flow? Or any idea?
But this morning went up an amber light showed Restricted Performance and without check engine light.
It disapeared when my car's speed over 90KM for a while and showed up again when idle.
I can not over 3000RPM, once I reach at 3, it will shake a lot. The Scanner shows No.1 cylinder too lean sometime, theres no other codes.
Mess air flow? Or any idea?
#6
P0171 Left-hand cylinders combustion too lean
P0174 Right-hand cylinders combustion too lean
In both cases the following are given as possible causes:
• Air intake leak between mass air flow (MAF) sensor and cylinder head
• Fuel filter/system restriction
• Fuel injector restriction
• Fuel rail pressure (FRP) sensor fault (low fuel pressure)
• Low fuel pump output
• HO2S/catalyst monitor sensor harness wiring condition fault
• EFT sensor fault (low fuel temperature)
• Mass air flow (MAF) sensor system, <<309-00>> For fault (low intake air flow)
• Exhaust leak (before catalyst)
• ECM receiving incorrect signal from one or more of the following sensors; ECT, MAF*, IAT, fuel rail temperature
P0174 Right-hand cylinders combustion too lean
In both cases the following are given as possible causes:
• Air intake leak between mass air flow (MAF) sensor and cylinder head
• Fuel filter/system restriction
• Fuel injector restriction
• Fuel rail pressure (FRP) sensor fault (low fuel pressure)
• Low fuel pump output
• HO2S/catalyst monitor sensor harness wiring condition fault
• EFT sensor fault (low fuel temperature)
• Mass air flow (MAF) sensor system, <<309-00>> For fault (low intake air flow)
• Exhaust leak (before catalyst)
• ECM receiving incorrect signal from one or more of the following sensors; ECT, MAF*, IAT, fuel rail temperature
#7
P0171 Left-hand cylinders combustion too lean
P0174 Right-hand cylinders combustion too lean
In both cases the following are given as possible causes:
• Air intake leak between mass air flow (MAF) sensor and cylinder head
• Fuel filter/system restriction
• Fuel injector restriction
• Fuel rail pressure (FRP) sensor fault (low fuel pressure)
• Low fuel pump output
• HO2S/catalyst monitor sensor harness wiring condition fault
• EFT sensor fault (low fuel temperature)
• Mass air flow (MAF) sensor system, <<309-00>> For fault (low intake air flow)
• Exhaust leak (before catalyst)
• ECM receiving incorrect signal from one or more of the following sensors; ECT, MAF*, IAT, fuel rail temperature
P0174 Right-hand cylinders combustion too lean
In both cases the following are given as possible causes:
• Air intake leak between mass air flow (MAF) sensor and cylinder head
• Fuel filter/system restriction
• Fuel injector restriction
• Fuel rail pressure (FRP) sensor fault (low fuel pressure)
• Low fuel pump output
• HO2S/catalyst monitor sensor harness wiring condition fault
• EFT sensor fault (low fuel temperature)
• Mass air flow (MAF) sensor system, <<309-00>> For fault (low intake air flow)
• Exhaust leak (before catalyst)
• ECM receiving incorrect signal from one or more of the following sensors; ECT, MAF*, IAT, fuel rail temperature
Maybe I should replace MAF first? Because I did not see any other codes comes up.
But the fuel pump output, I feel my car has more power when the tank is full...... is that my psychological problem??
Trending Topics
#8
#14
I used a screw driver knocked my MAF for few times, the light went off sometimes.
So I ordered a new one and replaced it yesterday, the light never show up today.
But I dont know does it fixed or not, it seems solved but not sure.
The code vanished.
So I ordered a new one and replaced it yesterday, the light never show up today.
But I dont know does it fixed or not, it seems solved but not sure.
The code vanished.
#17
P0171 Left-hand cylinders combustion too lean
P0174 Right-hand cylinders combustion too lean
In both cases the following are given as possible causes:
• Air intake leak between mass air flow (MAF) sensor and cylinder head
• Fuel filter/system restriction
• Fuel injector restriction
• Fuel rail pressure (FRP) sensor fault (low fuel pressure)
• Low fuel pump output
• HO2S/catalyst monitor sensor harness wiring condition fault
• EFT sensor fault (low fuel temperature)
• Mass air flow (MAF) sensor system, <<309-00>> For fault (low intake air flow)
• Exhaust leak (before catalyst)
• ECM receiving incorrect signal from one or more of the following sensors; ECT, MAF*, IAT, fuel rail temperature
P0174 Right-hand cylinders combustion too lean
In both cases the following are given as possible causes:
• Air intake leak between mass air flow (MAF) sensor and cylinder head
• Fuel filter/system restriction
• Fuel injector restriction
• Fuel rail pressure (FRP) sensor fault (low fuel pressure)
• Low fuel pump output
• HO2S/catalyst monitor sensor harness wiring condition fault
• EFT sensor fault (low fuel temperature)
• Mass air flow (MAF) sensor system, <<309-00>> For fault (low intake air flow)
• Exhaust leak (before catalyst)
• ECM receiving incorrect signal from one or more of the following sensors; ECT, MAF*, IAT, fuel rail temperature
#18
#19
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