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Honda CRV 2.2 N22A2 2007 - Poor power and MIL on, code P0344 - Fixed #

Posted by Allan Davis on March 1, 2013, 6:22 pm

Year of Manufacture *: 2007
Engine Size and Code *: 2.2 N22A2
( Optional ) ECU Type: Bosch EDC16C
( Optional ) Scanner Used: Bosch KTS
( Optional) Fault Codes: P0344

Hi All

This car came in with poor power and engine light on. The customer asked me to replace the timing chain as he had been told this was the cause.

Wanting to diagnose the fault myself i checked a few things and noticed the cam sensor and crank sensors had been replaced, so i scoped the cam sensor on all three wires and all seems normal. (good 5v, ground and signal. After clearing the fault code it returns immediately when cranking the engine. (the battery is good. I then checked the valve timing and it is perfect and the chain tensioner is not over extended indicating little if any stretching. My next two steps are to obtain an ecu pin diagram and a known good crank/cam sensor waveform to double check the cam and crank correlation (in case a key-way is worn)and to check the wiring.

If any one could help i would be very grateful.
Many thanks
Allan

Re: Hondea CRV

Posted by Mark Carter <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1428' width='330' height='300' border=0 style='border:none;'> on March 1, 2013, 6:37 pm, in reply to "Hondea CRV"

I see you are using KTS, Have you followed the guided help with reference to the code and if so what was the outcome?

Mark

Modern cars, Its all wizardry and witchcraft

Re: Hondea CRV

Posted by Alan Davis <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1846' width='330' height='300' border=0 style='border:none;'> on March 1, 2013, 9:54 pm, in reply to "Re: Hondea CRV"

Hi Mark
No further information available for this fault code.I have looked on Autodata juist and found the diagram and pin data from a Civic with the same engine code so i will have another look on Monday. A waveform would still help though.
Allan

Re: Hondea CRV

>>> No further information available for this fault code. <<<

There is what version are you running?

Mark

Modern cars, Its all wizardry and witchcraft

Re: Hondea CRV

>>> A waveform would still help though <<<

I totally agree but if you can fault description there is Info on ESI.

Mark

Modern cars, Its all wizardry and witchcraft

Re: Hondea CRV

Posted by Allan davis <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1846' width='330' height='300' border=0 style='border:none;'> on March 6, 2013, 8:40 am, in reply to "Re: Hondea CRV"
Allan Davis

Hi Mark
I am running version 2013.1.00.006, Data version 731.15. I have tried HON1065, HON1518 and HON 1444 and the same result with all(no further information availiable).
Thanks for looking
Allan

Re: Hondea CRV

HON 1065 has five pages of info and test plans for the camshaft sensor.

Mark

Modern cars, Its all wizardry and witchcraft

Re: Honda CRV 2.2 N22A2 2007 - Poor power and MIL on, code P0344

Posted by Allan Davs <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1846' width='330' height='300' border=0 style='border:none;'> on March 17, 2013, 1:30 pm, in reply to "Honda CRV 2.2 N22A2 2007 - Poor power and MIL on, code P0344"

Hi Mark
Sorry for the delay in replying to your post, i have had a staff shortage and this car had to go on the back burner.
I have tested the cam sensor thoroughly and can find no fault. I am back to the timing now. The timing chain is in good condition and all the marks line up correctly, however this is the 16 valve engine and the cam sensor is not the one driven by the chain but by a set of gears, i suspect that a previous mechanic has rebuilt the cylinder head and fitted the cams out of sync. Autodata only give instructions on the timing chain and not the fitting of the camshafts. The link to the Honda technical website on the ukautotalk list is for USA and Canada only. Anyone know the timing procedure for the cam gears and are the gears keyed or not? or is there a technical website for Honda Europe?
Thanks in advance
Allan

Re: Honda CRV 2.2 N22A2 2007 - Poor power and MIL on, code P0344

>>> i suspect that a previous mechanic has rebuilt the cylinder head and fitted the cams out of sync. <<<

So what is the history of this vehicle?

Has it just had a top end rebuild and the MIL been on since?

Mark

Modern cars, Its all wizardry and witchcraft

Re: Honda CRV 2.2 N22A2 2007 - Poor power and MIL on, code P0344

Posted by Allan Davis <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT1846' width='330' height='300' border=0 style='border:none;'> on March 17, 2013, 3:55 pm, in reply to "Re: Honda CRV 2.2 N22A2 2007 - Poor power and MIL on, code P0344"

Hi Mark
I have no idea. The customer bought the car about 8 weeks ago supposedly having a Honda full service history (which the seller has forgotten to hand over). My suspicions arise because of missing bolts (some from the timing cover and two from brackets) and tippex marks on the cams.
I am currently trying to figure out how to navigate the Honda service information website.
Thanks
Allan

Re: Honda CRV 2.2 N22A2 2007 - Poor power and MIL on, code P0344

>>> The customer bought the car about 8 weeks ago supposedly having a Honda full service history <<<

And has the light been on all the time he has owned the vehicle?

If so then yes its got to be investigated.

Mark

Modern cars, Its all wizardry and witchcraft

Re: Honda CRV 2.2 N22A2 2007 - Poor power and MIL on, code P0344

Posted by Peter Rainsley <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5418' width='330' height='300' border=0 style='border:none;'> on March 20, 2013, 9:25 pm, in reply to "Honda CRV 2.2 N22A2 2007 - Poor power and MIL on, code P0344"
Peter Rainsley

Allan,
do a search on 'Honda non-start' on this forum and look at Malcolm Crosbie's 'scope images and photos, might help,
Peter

Fixed #

Posted by Allan Davis on March 23, 2013, 3:49 pm, in reply to "Honda CRV 2.2 N22A2 2007 - Poor power and MIL on, code P0344"
Edited by board administrator March 25, 2013, 1:50 pm

Hi Peter
Thanks for the reply. I logged on to post my fix and saw your response, looking at the thread you pointed out the fault is identical to mine and neither of us had any reason to suspect it.

As you can see from the picture the woodruff key is broken. The reason i say "i think it's fixed is as i was typing this, the customer text to say the engine light had comeback on, and as fate would have it i have an identical vehicle in for an mot so i scoped the cam and crank on that one and the timing is slightly different to the one i repaired (i don't know how to upload pico files sorry). So i will check the code on Monday and update the post then.In the meantime if someone could send instructions on how to upload Pico files i will show you what i mean.
Many thanks to you and Mark for your help.
Allan

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