I have a 2003 dodge neon se 2.0 it would start on cold days had a diagnostic run and was told it was my cam shaft sensor and crank shaft sensor got those in and it ran fine that night but would not st

It was not running due to timing out of spec. Get the right part

Changing the Cam Position Sensor on Dodge Neon ...

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Dec 21, 2012 - Uploaded by VeeTheAmazingGreek
... had to change out the cam position sensor on my 2001 Dodge Neon. ... 1997 Dodge Neon no start, crank sensor problems - Duration: 26:53.

Dodge Neon Questions - It will turn over but has no spark ...

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CarGurusAug 9, 2015 - I did have a neon while ago and image crank sensor was bad ... my 1999dodge neon has no spark it will turn over but not fire i have changed the crank sensorcoil ... I have a 2001 Dodge Neon 2.0 with 140,000 kms on it.

Dodge Neon Questions - 2001 Dodge Neon will turn over ...

www.cargurus.com > Questions > Dodge > Neon

CarGurusJan 7, 2013 - I have a 2001 Dodge Neon 2.0 with 140000 kms o... ... went about a month before this recent problem, fixed that with no problem now this. ... firing. you said you replaced the cam sensor, did you do the crank sensor as well? ... My 1996Dodge Neon won't stay running whenever I take my foot off of the gas.

Starting Issues and Trouble Code Due to Defective Cam ...

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First I guess you meant "it would NOT start on cold days. I would not have gone to something as exotic as those fixes first. My suggestion is either a battery issue (which is quite often the case in cold weather or you have a bad main connection (either positive or ground). You can check that by a battery tester (I use my portable charger/jump start unit). That will tell you how much the voltage and current drops when you switch the ignition. How old is the battery? How many cold days a year do you have?

The next thing I would look at is the starter motor. After a decade the contacts could be oily/dirty or even oxidize creating too much impedance.

With either cause as simple drive could help things for a short period. Do you drive it everyday?

LOL, my Uncle used to use a mallet to shake things up a bit.

Good luck!
Philip

run fault codes and check for cam/crank position sensor failure.. Check that the cam shaft is actually turning and that the belt is not broken. Check immobiliser for proper operation.

run fault codes and check for cam/crank position sensors fault. Check that the cam is turning as it may have broken a timing belt.

Code 0325 is for a Knock sensor. Code 0340 is for the Cam sensor #1 if this is an engine with 2 heads and it is an indication of a single sensor on single head engines.

So if you do have a multiple hed engine, you may have removed the good sensor and left the bad sensor in the other head.

Remember to wipe the computer memory after installing new parts.

P0732 Gear 2 Incorrect Ratio
P0720 Output Speed Sensor CKT Malfunction
P0736 Reverse Incorrect Ratio
P0500 Vehicle Speed Sensor Malfunction
P0700 Trans Crt l System Malfunction
P0731 Gear I Incorrect Ratio

Instal a block heater best way to go sure start every time in sub bellow weather.

CODE PO340 NO CAMSHAFT POSITION SENSOR CIRCUIT FAILURE.CODE PO440 EVAP PURGE SYSTEM FAULT.POSSIBLE CAUSE THE EVAP PURGE VALVE VACUUM SUPPLY IS LEAKING OR CLOGGED.OR THE EVAP PURGE SOLENOID HAS FAILED.

If you had a fault with the crank sencer your car would not start.Sounds like the air flow meter is giving you the problems.