P0012 OBD Engine Code Logo   Code #P0012 -
'A' Camshaft Position - Timing Over-Retarded (Bank 1)

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Scion tC
Car still runs fine

Mazda Mazda3
rough idle and reduced power

It came up with p0303,p0113,p0456

Scion xB
Lights came on today. The car started up, but the car seems to sputter as we are driving it. There is some reduce power when we turn on the windshield wipers.

Chevrolet Aveo5

Mercedes-Benz C230
check engine light p0012

P0441 replaced the evap purge valve then started getting p0011 and p0012.

Mercedes-Benz C230
reduced power


Hyundai Sonata
oil control value

Ford Focus

Mercedes-Benz C230
engine light on po0117


Mercedes-Benz ML500
p0012 p0300 p0305 p0304 p0306 p0303 p0307


car starts hard and sometimes not at all

engine light on

Toyota Corolla

Toyota Sienna
light on

Hyundai Santa Fe
misses when cold, vibrates or shakes no chk engine light comes on

Jeep Grand Cherokee
i have been searching to find exactly what this code means & have gotten no where. i have talked to several experienced mechanics. my 96 jeep grand Cherokee has 225000 miles. 4.0 inline 6. it has a tap like the valve is hitting. the mechanics think that it jumped timing due to a worn out timing chain. i have not verified this. but it may help others. i do have a loss of power more common in higher RPM. no other codes show in dash.

runs rough and riugh idle


p0012 camshaft timing `A` over retarded bank 1

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When did your Check Engine Light Come On?
Does your Car Start?
Does your Car Vibrate? Shake?
Does your Car Idle Roughly? Reduced Power?

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Other Comments

P0705 Toyota Tacoma
code 0705 came unable to start vehicle dealer say its harness a $3000 and i have remote starter

P0891 ck engie po700uo155

P0337 Kia Sorento
would not start left overnight next morning started check engine light came on code po337 and code 154 came up

P0337 would not start

P0405 ´p0405 isuzu npr posibles causas

Other Check Engine Light Codes

P0111   Intake Air Temperature Circuit Range/Performance Problem
P0241   Turbo/Super Charger Boost Sensor 'B' Circuit Low
P0393   Camshaft Position Sensor 'B' Circuit High Input (Bank 2)
P0620   Generator Control Circuit
P0712   Transmission Fluid Temperature Sensor Circuit Low Input
P0725   Engine Speed Input Circuit
P0831   Clutch Pedal Switch 'A' Circuit Low
P0845   Transmission Fluid Pressure Sensor/Switch 'B' Circuit
P0864   TCM Communication Circuit Range/Performance
P0905   Gate Select Position Circuit Range/Performance

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