Runboard.com
Слава Україні!
Australian X-Trail Website Members Rides

Site Search

Facebook Aussie Forum Website Twitter Aussie Forum Website YouTube Aussie Forum Website Admin Mailbox Nissan Australia myNissan Capped Service Fuel Consumption Monitor Tyre Size Calculator Australian X-TRAIL Forum Live Chat

Forum Rules   
   Register for a free global account (learn about it) | LOG IN: globally (click here) (Lost Password?)




Page:
 1  2  3  4  5 

 
ziggy007 Profile
Live feed
Blog
Friends
Miscellaneous info

X-TRAIL NEWBIE
 


Date Registered: 06-2012
Location: Mortdale, Sydney
TOTAL POSTS: 17
Reply | QUOTE
T30 idle/power loss intermittant defect


G'day all.
My t30s1 (2005. 140Kms ) has started intermittently losing power (when warm). Started 2 weeks ago on freeway at 110Kph, the cruise control started to 'hunt' and when I disconnected it was actually the engine losing grunt. You could goose the accel and nothing until a few seconds and then revs would 'kick in' and engine rev normally for a bit & then repeat.
Sometimes when defect is evident it also idles a bit low and sounds 'sick'!

Recently noted (month or so) during normal driving the revs decay had been trending high when releasing the accelerator, say hanging on 1500, then drops to 1100 then normal. Have searched here and found this similar issue but no hard fixes.

Have reset ECU, relearned all the idle parameters etc cleaned the MAF sensor, removed and cleaned the throttle body and inspected and cleaned the O2 sensor and still the same.

Only does it occasionally sometimes days apart!! driving me nuts!!!
I could be chasing 2 defects here but don't believe in coincidences much in troubleshooting!!

(Have previously replaced the CAS & Cam Sensor pair 18 months ago for hard defect. all ok!)
No Engine light or anything hard, air filter ok Used fuel injector cleaner and hi oct fuel!

Would really appreciate if anyone has experienced anything like this before!?!

Thanx heaps
Gavin
21/Jun/2012, 2:49 pm Link to this post Send Email PM   Send Private Message Blog
 
jalalski Profile
Live feed
Blog
Friends
Miscellaneous info




Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
Reply | QUOTE
Re:


Hi Gavin,

Sounds like a faulty Throttle Position Sensor this time.

The T30 is prone to have all sensors play up due to age and we are seeing more and more of them with faults CAM, Crank, TPS and O2 sensors needing replacement.

---

21/Jun/2012, 3:07 pm Link to this post Send Private Message MSN Blog
 
ziggy007 Profile
Live feed
Blog
Friends
Miscellaneous info

X-TRAIL NEWBIE
 


Date Registered: 06-2012
Location: Mortdale, Sydney
TOTAL POSTS: 17
Reply | QUOTE
Re: T30 idle/power loss intermittant defect


Thanks Mate,
Yep that's my line of thought too. As I'd imagine you have to buy the whole manifold throttle assy I thought I'd check with the experience before outlaying the cash!!!! emoticon

Gotta love chasing intermittent defects!


Last edited by ziggy007, 21/Jun/2012, 7:03 pm
21/Jun/2012, 6:58 pm Link to this post Send Email PM   Send Private Message Blog
 
ziggy007 Profile
Live feed
Blog
Friends
Miscellaneous info

X-TRAIL NEWBIE
 


Date Registered: 06-2012
Location: Mortdale, Sydney
TOTAL POSTS: 17
Reply | QUOTE
Re: T30 idle/power loss intermittant defect


Just a thought! Can u actually buy the throttle actuator/tps separate from the throttle body and bolt on or am I up for the whole tronkus?
Ta
Gavin

Last edited by ziggy007, 22/Jun/2012, 9:38 am
22/Jun/2012, 8:54 am Link to this post Send Email PM   Send Private Message Blog
 
jalalski Profile
Live feed
Blog
Friends
Miscellaneous info




Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29100
Reply | QUOTE
Re:


I think the TPS can be replaced separately as far as I can remember.

But you can test the TPS to make sure it works correctly as described HERE

---

22/Jun/2012, 11:45 am Link to this post Send Private Message MSN Blog
 
ziggy007 Profile
Live feed
Blog
Friends
Miscellaneous info

X-TRAIL NEWBIE
 


Date Registered: 06-2012
Location: Mortdale, Sydney
TOTAL POSTS: 17
Reply | QUOTE
Re: T30 idle/power loss intermittant defect


Thanks mate,
Yep had seen yr earlier post but also have the integrated electronic throttle.(approx $800 from nissan- ouch!)
22/Jun/2012, 2:20 pm Link to this post Send Email PM   Send Private Message Blog
 
ziggy007 Profile
Live feed
Blog
Friends
Miscellaneous info

X-TRAIL NEWBIE
 


Date Registered: 06-2012
Location: Mortdale, Sydney
TOTAL POSTS: 17
Reply | QUOTE
Re: T30 idle/power loss intermittant defect


G'day all,

I'd like to pick yr collective brains re this defect as its decided to come back.

After a month or three of normal ops (besides the idle slow to return to normal) the X'ie decided to really turn it on and just lost all power whilst driving at speed on motorway. (like the original defect) Try and pump the accelerator and can get revs going & then bang; kicked in the back like an after burner !!! Would be ok for 30 sec's or so then did it again, no discernible cycle! (repeat the whole way home.)

Pulled the Throttle body apart, cleaned the TPS and reinstalled. Reset the ECU & did all the re-learns as per the service manual. Car running great!! Drive for 20 mins no problems and bang does it again! Limp home. Bought a 2nd hand Throttle body, and new sparkies for good measure and the ol girl is running as new, really nice!!!
 
80+ Km s later return trip along the M4 and hit a traffic jam, and I notice the idle thing start to happen again, i.e. Sits on about 1500 or so then slow to return to idle and rough idle and a minute later she does it again loses all power, 30 mins of whiplash later to get home.

Now the start up from cold is fine although it does 'oscillate' about on the tacho, maybe 80rpm (needle-width) at the normal cold revs of 1300. Cant say I've ever bothered to check whether this is normal, Can any one verify what theirs does sometime for me please, emoticon

Slowly works its way down to 750rpm as per normal where it can then move between 750-400 and back sporadically. A noticeable 'putting' sound comes from the exhaust. I took off the Pedal position sensor plug and it rocks up to 1400ish but does slightly still oscillate.

Funny thing is, the car drives really well now. (besides idle issues) Took it for a 30min flog to try and recreate the full on engine power loss but it wouldn't play the game!!!
Tried a new camshaft sensor but no joy, Will interchange the crankshaft sensor tomorrow with idle defect evident to see if that's it , but both are only 12months old anyway.
Oxy sensor on manifold is right on spec at 3.8Ohms.

Have shake checked the wiring harnesses whiles engine rough idling and no joy. PCV checked ok.
Sprayed the pedal poison sensor with contact cleaner for no change.

Too me, something is telling the car to idle 'wrongly' all the time but what ever is causing the massive power loss is totally intermittent, so I'm going to get a 2nd hand pedal sensor and throw it in any way.

Just though maybe someone could give me a 'why don't you look at the "????" you goose, in case I'm just not seeing something. My dealings with Nissan have been moderate to say the least in the 7 yrs I've owned the car so would like to exhaust all avenues before taking it and my hard earned back to them!

Other wise I'd think it could be the ECM itself. Has anyone needed to replace the ECM before?

Cheers & thanks

Gavin
14/Oct/2012, 8:11 pm Link to this post Send Email PM   Send Private Message Blog
 
Toddyh03 Profile
Live feed
Blog
Friends
Miscellaneous info

X-TRAIL HOLIC
 


Date Registered: 08-2011
Location: Lalor Park, NSW
TOTAL POSTS: 1663
Reply | QUOTE
Re: T30 idle/power loss intermittant defect


Sounds like you're checking all the right things to me. Maybe check the mass air flow sensor too.

---
Toddyh X-2048 (c)
New: Challenger
Old: 2010 T31 Diesel modified
My XTrail
14/Oct/2012, 9:21 pm Link to this post Send Email PM   Send Private Message Blog
 
Revhead Kev Profile
Live feed
Blog
Friends
Miscellaneous info



Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 6355
Reply | QUOTE
Re: T30 idle/power loss intermittant defect


What I consider the main things needed for power to be developed and the engine to run smoothly are the following...
- good supply of petrol (clean filter, clean injectors, fuel pump pressure good)
- air sensors working (oxygen sensor and MAF)
- clean air filter
- pedal sensor good
- throttle body good
- idle air and pedel relearn done
- cam and crank sensors good
- spark plugs good

You have done the relearns, throttle body, cleaned the MAF, spark plugs, camshaft sensor, pedel sensors, oxygen sensor (though I think a clean might not be good enough for this).
So my suggestion in order of lowest cost/easiest upwards...
- air filter
- crank sensor
- fuel filter
- check fuel pump pressure
- injector service (replace filter buckets) as detailed by evorock in another thread.


---
Kev X450(c) T30 Guru
03 Titanium Ti T30 Series 1 **MODIFIED**
My Blog
My CarPC Worklog
14/Oct/2012, 11:26 pm Link to this post Send Email PM   Send Private Message Blog
 
DJR9000 Profile
Live feed
Blog
Friends
Miscellaneous info

X-TRAIL ENTHUSIAST
 


Date Registered: 08-2012
Location: Blue Mountains NSW
TOTAL POSTS: 169
Reply | QUOTE
Re:


Somebody else was having similar issues and turned out to be a bad wire inside the loom - better hope it's not that as it'd be a real PITA to work out.


Sounds exactly like the cam+crank angle sensor issue - if they are under 12 mths old you might be able to claim warranty. If you go down replacing the cam+crank sensor get the revised ones with the metal shroud, will cost a little more than the standard plastic ones but should work better and last longer. Double check there isn't oil weeping on the plug side of the sensor that would indicate seal/epoxy failure on the unit

---
Ben
Hazelbrook, Blue Mountains NSW
2002 T30 Ti Dark Blue Mica
15/Oct/2012, 10:41 am Link to this post Send Email PM   Send Private Message Blog
 


Reply




Page:
 1  2  3  4  5 





You are not logged in (login)

forum sticker
Back to top Back to top

Back to topfree website counters

<-- end container -->