MR2 Roadster Owners Club

The Workshop => Maintenance, Problems & Troubleshooting => Topic started by: Mr2highpeak on March 24, 2022, 21:02

Title: P1349
Post by: Mr2highpeak on March 24, 2022, 21:02
Hi all, after a spirited drive my engine light appeared, so I plugged my obd reader in and code p1349 showed up. Any ideas what it could be and the possible fix. The engine feels fine to me?
Title: Re: P1349
Post by: Ardent on March 24, 2022, 21:45
From the wonders of the web.
VVT system controls the intake valve timing properly in response to driving condition.
ECM controls OCV (Oil Control Valve) to make the intake valve timing properly, and, oil pressure controlled
with OCV is supplied to the VVT controller, and then, VVT controller changes relative position between the
camshaft and the crankshaft.

When was the oil last cahnged?
Because.
*: DTC P1349 is also output after the foreign object is caught
in some part of the system in the engine oil and the system re␂turns to normal in a short time. As ECM controls so that foreign
objects are ejected, there is no problem about VVT. There is
also no problem since the oil filter should get the foreign object
in the engine oil.

Might be worth removing the the OCV filter and cleaning.

Do you have baby hands with triple jointed wrists by any chance? Just a lot easier if you do. 
Title: Re: P1349
Post by: Dev on March 25, 2022, 00:57
This is a very tricky code to diagnose as it can be a lot of things.
As Ardent pointed out it could be a dirty engine causing blockage or a sluggish stator in the VVT sprocket due to varnish build up and or a lack of oil pressure at the VVT circuit. This is usually the result of improper oil changes usually by the last owner.
 I would first check to see how dirty the engine is by removing the valve cover as that will give you a clue. If it has a lot of varnish build up then it will need an engine flush.

After that you have to do some comprehensive diagnoses.
There was one engine that was a mess and it was cured with two engine flushes. 
Title: Re: P1349
Post by: Mr2highpeak on March 25, 2022, 18:28
Guys thanks for your advice, I found a brand new ocv in the bits the guy gave me when I bought the car. Anyway fitted that and reset the code and took it for a drive and the engine light stayed off, so fingers crossed it's fixed the issue. On another note the oil is clean on the dipstick as it was changed in January by the previous owner, I will flush it on the next change as a preventative measure.
(https://i.ibb.co/Ms06z9r/20220325-182130.jpg) (https://ibb.co/Ms06z9r)
Title: Re: P1349
Post by: Ardent on March 25, 2022, 20:19
Did you find it a struggle. I have always given up
Title: Re: P1349
Post by: Mr2highpeak on March 26, 2022, 11:18
Quote from: Ardent on March 25, 2022, 20:19Did you find it a struggle. I have always given up
Not too difficult I removed the charcoal canister, then sprayed the electrical connection with wd40 and used two fairly long flathead screwdrivers to help remove the connector. Then used a 10mm spanner to crack the bolt holding the ocv then unscrew by hand. then prized it free with the screwdriver.
Title: Re: P1349
Post by: Ardent on March 26, 2022, 17:58
It's the getting the socket on, I've always struggled with.

Edit.
I see you went for a spanner.
Title: Re: P1349
Post by: shnazzle on March 26, 2022, 18:03
Quote from: Ardent on March 26, 2022, 17:58It's the getting the socket on, I've always struggled with.

Edit.
I see you went for a spanner.
The amount of things on the 2 that can only be reached blindly with a 10mm spanner.
Title: Re: P1349
Post by: J88TEO on March 28, 2022, 13:43
Quote from: shnazzle on March 26, 2022, 18:03The amount of things on the 2 that can only be reached blindly with a 10mm spanner.
and by feel only....