Question about 2007 Toyota Yaris
My car will stop accelerating and the check engine lights come on.
The check engine light indicates a fault in the engine management systems. Your car has stopped accelerating because it is locked in fail safe mode and normally you should be able to accelerate just enough to limp to the dealer where they wil scan the computer.
Posted on Nov 09, 2008
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: 2001 Isuzu Rodeo 54248 miles
If problem is only on startup and when idleing, then the problem is likely IAC system, also a vacuum leak will cause the same problem.
If problem is not only on startup and idle, but also when driving, then MAP sensor and EGR system must be checked.
Check also accelerator cable state and setting.
The first thing to do is pulling out the OBDII fault codes stored in the ECM. This is done connecting a code reader to the ECM diagnostic port. The job can be done for a small fee at any local garage, and it is done for free at AutoZone.
The codes will help locating the problem.
About possible faults:
Problem is stalling when idling and during startup, but engine idling fast all the time. Problem not starting at times it is due to the fact that the wrong mixture is being sprayed, this is probably causing flooding and misfire. Since the CEL is on, one of the codes returned is probably misfire.
Check IAC system. This is composed by a valve and a solenoid that check and control amount of extra air air when the engine is idling. The IAC valve is located on top of the throttle body.
Check the vacuum system and try cranking with gas tank cap off. Vacuum system is tested using an hand tool gauge onvacuum lines while spraying card cleaner on the hoses (or heating them with a torch). If there is a leak, pressure will go up. A big leak will also do hissing noise, and will often result in a lean code when doing an OBD code scanning.
This kind of symptoms can also be caused by weak wiring to MAP/MAF sensor (MAP in this engine).
If the car also drives very rough and is revving up and down in a weird way, check the EGR valve.
As first thing I would do a code scanning. This car is OBDII. The scan can be done for free at the nearest Autozone, or for a small fee at any garage.
If you get any OBDII code from the scan, report it here, so that we can individuate the possible reason for the problem.
If you repute my solution helpful, then please take some times to accept the solution. Providing good repair tips requires time and skills, and your feedback is important for us.
Posted on Oct 26, 2010
Take a run into Autozone, or Pep boys, or similar big autoparts store and they will do a free code scan, to point everyone in the right direction instead of guessing, and throwing parts at it. If the fix isn't obvious after codes recorded, get back to us with code(s) and will help you out if still needed.
Posted on Dec 04, 2009
Tips for a great answer:
Mar 25, 2016 | Nissan Cars & Trucks
Mar 30, 2013 | Cars & Trucks
Jan 23, 2013 | 2002 Volkswagen Jetta TDI
Apr 01, 2012 | 1990 Ford Probe
Jul 21, 2017 | 2007 Chevrolet Aveo Sedan
Jan 12, 2010 | 2001 Nissan Altima
Oct 06, 2009 | 2006 Hyundai Sonata
Jan 17, 2009 | 2006 Peugeot 405
1,226 people viewed this question
Usually answered in minutes!