Question about Cars & Trucks
My chev aveo 1.5,2007 model,engine light stay on.sometimes the car sound to like run on 3 cylinders. while engine is running and then all of the sudden comes right. it is allso heavy on fuel. mostly on start up.how can i find the code and what can the prblem be
Have a code reader connected to the data plug in the car and read the codes recorded . From there your accredited mechanic can help or put the codes in the comment box so that we can help decipher them and assist with suggestions on what to check/replace.
Posted on Feb 15, 2014
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Posted on Jan 02, 2017
You may need a new ECM/computer. This model car is known for water leaking into the ECM from your air box. The drain hole in the bottom of the box gets clogged and after a while, your ECM gets flooded, because the water has no place to go, but onto your ECM, frying vitale circuits. Check your passenger side floor by the feet to see if its wet.
Posted on Jul 17, 2008
vacuum leaks on intake manifold,
the air tube between the air filter.
intake manifold vacuum hose.
clean throttle plate with Berryman carburator cleaner
SEE sample picture HERE
Also remove carbon built up behind the EGR valve and the EGR passage tube.
Vacuum leak WILL offset the intended 14.7 to 1 air fuel ratio.
More un-metered air (leaks) will lean out the fuel mixture.
Use small amount of Berryman carb clearer at potential air leak area will help you identify trouble spot.
At idle,just spray and listen for the RPM surge.
The in-rush of carb clearer will increase the RPM on the motor.
Record the problem spot(s) and address it later.
EGR carbon built up require 2+ hours to clean from start to finish.
You will need a new EGR base gasket before your start.
Locate and remove the EGR valve after the vehicle is cool down.
Carefully record the connector and vacuum line (for older vehicle) location by drawing an easily to follow diagram.
Remove the EGR valve.
Inspect the location of the carbon built-up inside the valve and the EGR passage tube.
SOAK these areas with WD-40 spary.
You will need a small screwdriver,cloth hanger and lot of newspaper and time to get this cleaning done right.
RE-SOAK the carbon and let it sit for over-night will also help.
One the last round,pass a shop vacuum of the EGR valve and the passage pipe.
Install the new EGR gasket and connectors.
Allow the vehicle to warm up outdoor to burn up any remaining WD-40.
Take it for a test drive.
Please rate my answer if it's useful to you.
Posted on Dec 19, 2009
Many things can cause this problem...unfortunately the only proven way to remidy this situation is to have your car scanned by a reputable mechanic with a diagonstic machine $40-$80. This will tell what exactly is causing the check engine light to come on, in the long run its much cheaper replacing whats wrong than trying to replace things that arnt wrong.
Posted on Feb 16, 2010
SOURCE: 2007 aveo misfire faults
gm has a problem with this from way back. double check your spark plugs and if they are not ac delcos, change them. ive seen this time and time again swearing, myself, that there is no way that the plugs would cause this issue. it always comes up with random misfire and usually another 1 or 2 codes misfire codes. put in ac delco, no more codes. let me know
Posted on Feb 22, 2010
P2135 Throttle Position Sensor (TPS) Property Malfunction, remember this is not a car that is built by GM it is a Korean import.
Posted on Jun 07, 2010
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