|
07-25-2013, 04:40 AM | #1 |
Drives: 2000 Land Cruiser & 2007 Yaris Join Date: Nov 2012
Location: Porto Portugal
Posts: 7
|
Rev Issue On Idle
Hi all...
After driving me mad I've come to you for some help.... So i have a 2007 1.0 Yaris Sol... And for some time there is a issue... When i put the car in neutral and lower my speed the revs drop too low and then the car has to accelerate by himself to recover this happens 2 or 3 times in a row.... Today as i'm diving home the this happened but some I've felt new symptoms too.. when i am accelerating the car seems to pause for a second and the go... I've been to Toyota but nothing has been done... Thanks in advance!!!! |
07-25-2013, 08:39 AM | #2 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
|
Is the A/C on when this happens?
__________________
|
07-25-2013, 12:47 PM | #3 |
Drives: 2000 Land Cruiser & 2007 Yaris Join Date: Nov 2012
Location: Porto Portugal
Posts: 7
|
No A/C Off... I Also forgot to say that doesn't happen every day.
I have a Mini VCI Cable with Techstream. I will try to check for error codes. |
07-25-2013, 02:07 PM | #4 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
|
Also, watch the data from the MAP sensor on your 1.0L with the techstream while it is occurring.
__________________
|
07-26-2013, 04:38 AM | #5 |
Drives: 2000 Land Cruiser & 2007 Yaris Join Date: Nov 2012
Location: Porto Portugal
Posts: 7
|
So i went back to the car yesterday... No codes have been found...
I also watched the Map sensors as you said CTScott the values are: ~100 Kpa when its stopped. As soon as i started the car i went down to around 30 kpa... Unfortunately the issue did not occur when i was on the techstream... |
07-26-2013, 05:24 AM | #6 |
Drives: Decepticon - Ravage Join Date: Nov 2008
Location: San Francisco
Posts: 1,462
|
Could the car be running too lean due to a vacuum leak. It will cause rough idle and see the RPM fluctuation, and hesitation during acceleration.
__________________
Check out my Build thread: http://www.yarisworld.com/forums/showthread.php?t=52274 |
07-29-2013, 11:42 AM | #7 |
Drives: 2000 Land Cruiser & 2007 Yaris Join Date: Nov 2012
Location: Porto Portugal
Posts: 7
|
New development...
Now when I start the car after a night on the garage it makes a Buzzing noise... Its loud enough to listen inside the car with everything closed.. |
07-29-2013, 12:10 PM | #8 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
|
That may be the fuel pump. The service manual for your engine seems to point to most issues, like what you are experiencing, being caused by the fuel pump.
__________________
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
DIY - 1.8L 1ZZ-FE TB Connector Chip Swap | Yaris T-Sport | DIY / Maintenance / Service | 332 | 04-03-2022 01:39 AM |
rough idle.... | dindy | Third Gen Yaris General Discussion | 5 | 06-12-2013 12:48 PM |
3rd gen 1zz tb swap | mr_miles | DIY / Maintenance / Service | 26 | 05-01-2013 08:20 AM |
yaris voltage issue | yaris2010RS | DIY / Maintenance / Service | 11 | 12-29-2012 04:20 PM |
Idle issue... | nookandcrannycar | DIY / Maintenance / Service | 2 | 09-10-2012 05:49 AM |