Question about 2003 Ford Focus

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I have a 2003 focus engine code po340 came up as cam sensor so i changed it and cleared the code but light came back on and the same code came up

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Obd Codes, do not tell you to replace anything

They are sensors reporting an out of range condition

You use the codes to diagnose the system involved,
not change any parts, until you have done some TESTING
and determined a part failed

Basically, you can not work on your own vehicle,
because of lack of knowledge and proper test equipment

Posted on Apr 02, 2011

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You need to reset your ECM" computer" May need to call you dealer and ask how you do this, It's not hard just different on all vichele's. Good luck, I'm sure this will help your problem ,

Posted on Apr 02, 2011

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Posted on Jan 02, 2017

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1 Answer

2003 ford focus check engine light kills motor


Start with a code reader several items will turn on check engine light and kill the engine Crank shaft sensor, cam shaft sensor, mass air flow meter, exhaust gas re circulation , manifold pressure sensor.

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Code po340


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2003 Hyundai Santa Fe Still Will Not Start PO320 PO340


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HELLO, I HAVE TROUBLE CODES PO330,PO340, ON MY OBD2 READER WITH THE MAINT LIGHT ON IN 96 BMW Z3 ROADSTER 4CYL., PO330 IS KNOCK SENOR, PO340 IS CAMSHAFT POSITION SENOR, I WANT TO KNOW HOW TO FIX THEM BOTH....


The Cam Position Sensor is a common item to fail. However, the cam positioning mechanism can fail too giving that code.

There are two sensors and the Exhaust Cam Sensor is most common to fail. I always replace both.
Te CKP's are on the top front of the engine next to the cylindrical operation solenoids.

Knock sensors fail too and need checked or correct feedback to ECU with a scanner.
Find a shop near you at http://www.iatn.net/shopfinder/

These engines require regular oil changes with quality synthetic oils and OE filter....not a FRAM or WIX !

Buy only BMW sensors ...aftermarket have high failure rate.

Jan 12, 2011 | 1996 BMW Z3 Roadster

1 Answer

CHECK ENGINE LIGHT ON. THESE ARE THE CODES THAT WERE GIVEN - - P0340A & P1377A


po340 is camshaft position sensor A- bank 1 curcuit malfunction--p1377 is IC module cam pulse to reference. change cam sensor then you should be ok. you can go to any auto parts store and buy a haynes manual for your specific car. this book will help you.

Jan 06, 2011 | 1996 Cadillac DeVille

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2003 Dodge Neon has a pp0340 , 440 codes I think


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Oct 12, 2009 | 2003 Dodge Neon

1 Answer

Po340 code replaced cam shaft sensor and synchro


then replace cam sensor it dosent seem like thats it but i have seen tricker things befor

Aug 11, 2009 | 1999 Ford Taurus

2 Answers

DTC - PO340, PO325


My Nissan micro 2004 model just stopped in the middle of the road one day then the engine management light came on, anyway took it to my local garage TWK Thomas who said it was a cam shaft sensor problem. OK so sensor was put on, engine management light went off for two days only. So went back to the garage they said that another sensor should be fitted on the opposite side. And then the problem should be rectified, but i had given the £160 for this problem to be fixed the first time. I decided it was time to take it to another garage Nis Tec they put it on the computer and a code po340 came up would this mean another sensor or the cam chain has stretched please help. ...claire

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1 Answer

I have a 2000 chrysler concorde that the engine light just popped on - the error codes are po302, po420, po340


P0302-cylinder #2 misfire detected
P0420- catalyst efficiency below threshold bank 1
P0340-No cam signal at PCM.
The Cam sensor most likely needs to be replaced first. Clear the codes after that and drive and see what comes back on.

May 29, 2009 | 2000 Chrysler Concorde

3 Answers

P0340 CODE COMES UP,SENSOR REPLACED CODE STILL COMING BACK.IF ENGINE IS REVED ABOVE 1500 DASH LIGHT GOES OUT BUT WHEN ENGINE IDLES DASH LIGHT COMES BACK ON.


i have 2000 cadillac deville runs really good it has a po340 engine code runs good b when i come to a complete stop the engine idles up and down only at a complete stop what do i need to do

Oct 22, 2008 | Cadillac STS Cars & Trucks

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