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Posted on Jan 02, 2017
SOURCE: CHECK ENGINE LIGHT ON. JUST
Check all the tube connections associated with the inlet manifold. Also check the connections to the new PCV. The code is indicating a leak into the inlet manifold. If this serious you will notice a laboured idling of the engine. WIth the engine at idle, where you can, pinch close, one at a time between thumb and forefinger, the air/vacuum hoses making connection with the inlet manifold for about 20 seconds. You might not notice any change to the engine note until you again open the tube up. This process should allow you to locate a minor air ingress leak. Also use your ears and listen for any wheezing, sucking, or whistling sounds. Lastly try spraying joints etc with alcohol spray. When the leak is hit the alcohol when sucked in causes the engine to speed up.
Posted on Sep 05, 2010
If you get
error codes and
you have an engine that misfires or runs rough, it can be the injector for that
cylinder or the coil pack. The P0300 code is a random misfire code and may or
may not be the above. All the other messages are for misfire of a particular
cylinder indicated by the last digit.
Test the coil pack by switching it to another spark plug and
see if the problem follows to that cylinder.
If that makes no difference, it is very likely the injector.
Disconnect the injector connector of the same cylinder and measure the
resistance. It should be 13.5 to 14.2 ohms at 70 degrees temp. It can be up to
16 ohms if the engine is hot. If you see a really high resistance or an open or
short then you can try to change the injector. If not, you can remove the fuel
rail on that side and switch the injector to another cylinder and see if the
problem follows to that cylinder.
need a 22mm wrench to remove the fuel pressure regulator. The other connections
are std. When all screws are removed, GENTLY wiggle the rail up and guide it
smoothly out. Don't put any sideward stress on the injector bodies.
Here is how to identify cylinders
Front of vehicle ^
All of the
injector connectors have a Black with red stripe wire. The corresponding other
wire color on the injector connector that matches with above are
Posted on Mar 08, 2011
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