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poo14 error code

Help and Advice on Volvo's extremely popular car line, powered by Volvo's nearly indestructible, versatile inline 5-cylinder engine.
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poo14 error code

Postby wilfster » 21 Nov 2010, 17:06

Hi,This is my first post soooooo......

I have recently changed the cylinder head on my 1999 v70 2.5t (b5254t engine), I have checked various online tutorials regarding timing marks,etc BUT can't find any regarding this particular engine.

Anyhow,here's the problem I'm having.....

1.starts fine

2.idles fine

3.after about an hour rough idle appears/misfire

4.error code p0014 shows with my diagnostic tool.

5.it will reset but only for about 2-3 seconds then rough idle again

6.No ETS light,NO check engine light

7.?????????


I'm flumuxed,is there something i'm missing or is it time to take it to volvo??

BTW car was bought as non runner(due to cylinder head).

I have found the timing marks on the crank(two small notches either side of TDC) and the inlet sprocket points straight up,the exhaust was lined up by using the end of the camshaft and th joint between the cylinder head and the top of the engine.


Any ideas??
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Re: poo14 error code

Postby JRL » 21 Nov 2010, 17:58

Cam code
You may be one tooth off on your timing
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Re: poo14 error code

Postby wilfster » 21 Nov 2010, 19:54

Thanks for your prompt response, I will double check on the weekend.

Do you have any pics of b5254t engine timing marks??

I don't understand how vvt works with what's essentially a vernier pulley?

But why would it run ok? then run rough?

thanks

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Re: poo14 error code

Postby jblackburn » 21 Nov 2010, 23:01

The VVT can let the exhaust camshaft rotate up to 30 degrees to adjust low-end torque/high-end power and get better fuel economy while doing it (something the 5-cylinder needs a bit of help with). It may be when that's activating that the rough running starts.

To set the timing on a VVT engine, you need to rotate the camshaft past the mark slightly, and then come back and line the marks up. If you didn't do this, then most likely your timing is now off by a tooth or two.

See the directions for tensioning the timing belt on a VVT engine in this S60 - the same procedure applies for your car.:
viewtopic.php?f=9&t=22659
'98 S70 T5 218K miles
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Re: poo14 error code

Postby wilfster » 22 Nov 2010, 20:00

Thanks for you response and info,But I'm still not sure of a few things..

1 Why is there some fine adjustment on the exhaust pulley?

2. I have lined up the "other ends" of the camshaft withe cylinder head,so do i now ignore that bit?

3.Or do i just line the the pulley up one/two teeth out(????) clockwise or anti clockwise.

I will follow the instructions that you kindly sent to me But with almost a full tooths movement within the exhaust pulley,what datum should i use?

Thanks in advance...no pun intended(P0014).
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Re: poo14 error code

Postby jblackburn » 22 Nov 2010, 22:04

All you should have to do is rotate it past slightly, and then rotate back and line up the marks with the cylinder head. Make sure #1 is at TDC first; then go at it.
'98 S70 T5 218K miles
2012 Chevy Cruze LT 6MT


A learning experience is one of those things that says, "You know that thing you just did? Don't do that."

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Re: poo14 error code

Postby wilfster » 22 Nov 2010, 22:14

Ok,thanks

One last thing....judging by the instructions all/most of the slack in the belt is around the exhaust pulley.

And to double check...why is there the fine adjustment thingy on the pulley?

TIA
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Re: poo14 error code

Postby jblackburn » 23 Nov 2010, 01:05

You might want to shoot JDS60R a PM...he knows much more about the VVT/newer models than I (my model doesn't have that). He's a very helpful/knowledgeable guy ;)
'98 S70 T5 218K miles
2012 Chevy Cruze LT 6MT


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Re: poo14 error code

Postby wilfster » 23 Nov 2010, 06:00

Cheers,will do.
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Re: poo14 error code

Postby JDS60R » 23 Nov 2010, 22:44

Try the attached procedure.

If it is set correctly and your P0014 continues then do this
1. Use a quality engine oil flush
2. Change filter and oil using a semi synthetic at least
3. Replace outdated gasket under VVT control valve with updated one with metal filter in it.
4. Clean VVT valve while off with parrafin

Run and test.
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