i have replaced the plugs and wires and my service engine light comes again in 2004 land rover discovery
Yes. Your Check Engine light or Service Engine Soon light.
No, not unless your connect the plug wires wrong or one of the new spark plugs was bad.
There are pages and pages and items that can cause a check engine light. You need to have it checked for codes with a scan tool. After repair light can be shut off with scan tool.
the cause of this indicates one or more spark plugs,and/or coils need replacing
if the engine light is blinking a misfire condition has been detected. check plugs and wires.l
A check engine light could mean many things on a 1988 Nissan Sentra. The light could mean anything to a fuel cap not being tight enough to bad spark plugs.
CHANGE YOUR SPARK PLUGS AND WIRES FIRST
My service engine light came on at 95,000 miles. A simple tune-up, plugs, ect... and it ran like new again. You might find an auto parts store, like Auto Zone, that can check the engines computer for free.
Just as long as you get the proper length plugs for the engine you won't damage anything.
if it's like my 2002 it has a service engine code light on with a speed sensor code.it doesn't have a speed sensor, it means you need to check plugs/wires/or the electronic assy.itself.my problem was the plugs.
Go to Auto Zone and they will check you engine light for FREE... And go from there...
Bad spark plugs can have a variety of effects on the performance of your car's engine. Signs of bad spark plugs include a rough idle, engine hesitation, hard starting, check engine light illuminated with a DTC P0300 and reduced engine power.
Most likely you need a tune-up. Spark plugs, spark plug wires, distributor cap/distributor, or pack. Replace in that order.
There is an engine misfire, probably spark plugs issue.
A spark plug that is causing a misfire is one of many reasons for the check engine light to come on.
by going to an AutoZone store and having them reset it with their handheld computer system that plugs directly into the information port under the dashboard on the drivers side
It probably is something in the emissions. O2 sensor what year and make
When the check engine light comes on it posts a code in the ECM. Your next step then is to read the code or codes and go from there.
Change the fluids and filters. Inspect the spark plugs and wires. Clean the carburetor.
A yellow engine or 3 plugs on each three sides of a rectangle.
Not running on all cylindersBad plugs?Bad wires?Bad valve?Bad piston? Service engine light on?Have vehicle scanned to determine problem
No, Glow Plugs are used to help start a cold engine. They can also be used for emisions (cold start up).
The easiest way is to look for spark plugs. No plugs and it is a diesel, plugs and it is a petrol engine.