I read all the replies from you on 1349 code. And have some idea on what to do with my corolla which is having similar issue. But before I do anything, I would like to explain you my situation and hope that you can inform me more specifically.Car Details:
2001 Toyota Corolla CE. Mileage - 142500 Miles. Recent Services:
Regular Oil Change since last 12 months. (Though Last Two were Delayed.)
Transmission Flush in Feb 2009
Battery Result - Good
Emission Flush, Engine Tune Up and Spark Plug changed in July 2008
For nearly 1.5-2 years I used to use local gas company (DELTA - cheapest gas). Stopped using them when i found out that they mix water in Gas
Now I use regular gas from Shell, BP etcJun 2006
: Engine Check was On. Mechanic removed it citing code for Catalytic Convertor. Car cleared the Inspection and have been driving fine until Oct 2008. Note: I didn't change the Catalytic Convertor. In between I was using the cheap gas as mentioned above and got the above services done. Oct 2008:
Engine Check Comes up again. Mechanic mentioned again Cat Convertor Code. Kept the change on Hold. with the onset of winter car starts giving trouble during start up in early morning. Battery is in Good Conditioned (got it checked). Sometimes car doesn't start at all even after I turn the key full. Note: all the lights in the dashboard blink perfectly when i insert the key. Problem is in ignition of the car. the only good new is that car drives fine once it starts. Car runs perfectly at all speeds (max tried is 80 mph).Feb 2009:
I took the car for another round of check up for engine check sign. This time mechanic says there are two codes - one for catalytic convertor and second one for p1349 - VVT malfunction.
After seeing the code gave me a quote of $220 to correct the p1349 code. My concern is, after reading your all your posts, i think my mechanic needs to investigate more to find the actual cause. I'm worried he may charge me more later citing more parts need to be replaced.
So now, i seek your advice on should i go ahead and try to do first level of diagnosis by myself? If yes then what steps you will recommend. From where can I get the TSB for 1349? I'm a computer engineer with intuitive nature to solve problem so have basic tool kit with me. but dont have anything extra need as car mechanic.
thanking you in anticipation.
The oil control valve and the VVT actuator is pretty expensive, I would definitely not replace those until all other options have been explored first - but there is a small oil filter screen that runs to the valve. If that filter is clogged - you could get the P1394 code.
Being a 2003 model and UK or European market? - that TSB probably can't really help you - as those were addressed for the newer generation.
Could be one of those sensor "glitches" that will eventually go away. If you really did a VVTi malfunction - the engine should "ping" badly under load, have trouble keeping an idle, and overall drive poorly. Fuel economy will also drop considerably. If none of those happens - you may have an electrical issue. Very likely that there are some faulty engine/chassis grounds or a damaged wiring to the ECM, causing it to believe a sensor/system is failing.