2004crv ex check engine light on miss fire random cylinder 1 most of the time cylinder 3 ireplaced all the spark plug put k44 bg product fuel injector cleaner i turned off the check engine light with the scaner when i put the press the pedal for gas check engine light on and of i tested the ignition coil as well the all work good what do you think it is
An expert who has achieved level 3 by getting 1000 points
An expert that got 20 achievements.
An expert that got 10 achievements.
An expert that got 5 achievements.
Re: 2004crv ex check engine light on\r\nmiss fire
More than likely you have a failed fuel injector. Place a screwdriver on each injector and up to your ear and listen for the working "click". If it clicks I would perform a compression check next, then verify spark. If the above checks out swap the injector and see if the problem follows. You will need new o-ring seals to do this. Let me know how this works out.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
use a digital volt meter,put it on the ohm scale check number 2 fuel injector should be 11 to 16 ohms if not reads zero fuel injector faulty.if numbe 2 fuel injector okay.use noid light hook it to fuel injector electrical connector with fuel injector disconnected and see if pcm is firing the fuel injector noid light should blink when cranking the engine.if light steady pcm not firing 2 fuel injector,if noid light dont light up.there is a open in the wiring connector 2 fuel injector 2. if fuel injector okay,check spark plug, carbon foul you have a bad ignition coil or wire if you see oil on spark plug you have worn piston ring or leaking valve guides allowing oil to foul out spark plug.do a compression test check compression to see condition of the cylinder.
Cylinder #2 is the the second spark plug counting from the right to left.
EX.Below are spark plug on engine
' (oil cap) '
' (4) (3) (2) (1) '
Your misfire can be cause by couple of things but the cheapest way that you can try to fix your car is to do a tune up by replacing:
1)all spark plugs
2)do a oil change
3)spark plug wires
3)distributor cap and rotor
note misfire can be cause by:
2.spark plug and/or wire
3.distributor cap and/or rotor
8.bad wiring(power, ground or feed line)
first do a cylinder compression test on engine to verify good engine compression this should be around 110psi to 175 psi check for vacuum leak, intake port for #6 cylindermay be leaking air, or also check coil for that cylinder, if wire and spark plug have already been changed, last replace fuel injector for that cylinder.
Causes: - Improper spark plug at cylinder #1 - Insufficient compression at cylinder #1 - Incorrect fuel pressure - The injector circuit is open or shorted at cylinder #1 - Fuel injector #1 may be faulty - Intake air leak
a miss fire can be caused by a bad fuel injector or wiring to the fuel injector. Do a self test on the computer. turn key off-on, off-on, off-on. The codes with flash out in pairs on the check engine light, 5-5 being the end of the test. It may identify the problem cylinder. IF you do find a stuck injector you can try the redneck fix. Put a long socket extension on the injector and tap lightly with a hammer while the engine is running. TAP LIGHTLY!!! ITS ONLY PLASTIC!!!!! This may free up the injector. make sure spark is reaching the plug.
Could only be a few things. The coil #1, Fuel injector #1, Stuck intake or exhaust valve, or blown head gasket allowing coolant into cylinder #1. Use a spark tester to check the spark coming out of cylindr #1 if checks good then ohm test the injector when it is warm. Check other injectors to compare. Do a compression test on cylinder #1 and test other cylinders to compare. If cylinder is low compression suspect valves and or head gasket. If compression is low then het a leak down tester to test if a valve is broke or sticking. On your sable i would suspect injector or coil most likely.