All cylinders misfire?
12-08-2009, 09:39 PM
#41
Senior Moderator
thinhthan, this is what I've learned to do....
With the engine running, pop the hood, and unplug each coil one at a time. Unplug it, and your engine should shake (It will be noticeable) (don't forget to plug each coil in before moving to another cylinder). If you unplug one coil and there is no noticeable difference in how it is idling, you have found the problem. Take the coil off that cylinder, and replace it with a coil from a different cylinder.
Then, try the unplugging method again. If the problem moves with the coil that you moved, then the coil is your problem. If the error is still on the same cylinder, it is your spark plug. Does this make sense? If not, I can make up an example that might help out.
Also, the cylinder may still fire, even with a bad coil. I thought that the coil was fine because it was firing, but it still misfired, so I replaced it and that solved the problem.
With the engine running, pop the hood, and unplug each coil one at a time. Unplug it, and your engine should shake (It will be noticeable) (don't forget to plug each coil in before moving to another cylinder). If you unplug one coil and there is no noticeable difference in how it is idling, you have found the problem. Take the coil off that cylinder, and replace it with a coil from a different cylinder.
Then, try the unplugging method again. If the problem moves with the coil that you moved, then the coil is your problem. If the error is still on the same cylinder, it is your spark plug. Does this make sense? If not, I can make up an example that might help out.
Also, the cylinder may still fire, even with a bad coil. I thought that the coil was fine because it was firing, but it still misfired, so I replaced it and that solved the problem.
12-08-2009, 11:26 PM
#42
Three Wheelin'
ok so i toke the coils off my old motor and its still misfiring before it was all cylinders but not its 1 4 and 5. do you think my old coils are bad? i really dont wanna buy all new coils. for some reason when my check engine light comes on the tcs comes on too?
12-09-2009, 11:26 AM
#44
Senior Moderator
Huh?? What did you do? did you unplug them like the other guy said (which really doesnt work to diagnose)
12-09-2009, 07:45 PM
#46
Three Wheelin'
12-09-2009, 07:46 PM
#47
Three Wheelin'
like at first i was getting a code for misfire in cylinder 1,2,3,4,5,6 and a random misfire code. so i toke the coils out of the motor that came with the car which was blown and put them into the motor i just put in to it. now im getting a code for misfire in cylinder1,4,5
12-10-2009, 09:58 AM
#48
Senior Moderator
Swap 1 4 5 coils to 2 3 6 and reset the ECU. See if the problem follows the coils
For reference
Back of motor
123
456
Front of motor
For reference
Back of motor
123
456
Front of motor
12-12-2009, 09:46 PM
#50
Senior Moderator
From the same cyl?
Have you had a compression test?
Have you had a compression test?
12-13-2009, 11:16 PM
#51
Three Wheelin'
12-14-2009, 11:33 AM
#52
Senior Moderator
Try swapping those injectors around to see if it follows. (use some Vaseline on the o-rings so that you dont damage them putting them back in)
12-15-2009, 09:05 AM
#54
Senior Moderator
possibly yes.
12-18-2009, 09:47 PM
#55
Three Wheelin'
12-19-2009, 09:04 AM
#58
never saw it mentioned, then here is another thing, did you make absolutly sure to put the gasket back on the CORRECT way, becauase when it is reversed, i think it still seals up the intake manifold, but it blocks all the egr ports, which would be no different then them being blocked
12-20-2009, 02:12 AM
#59
Three Wheelin'
never saw it mentioned, then here is another thing, did you make absolutly sure to put the gasket back on the CORRECT way, becauase when it is reversed, i think it still seals up the intake manifold, but it blocks all the egr ports, which would be no different then them being blocked
03-21-2016, 02:29 PM
#60
1st Gear
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11-18-2018, 06:05 AM
#61
1st Gear
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Heeellp!!! Please!!!
Hey guys. Today I went and got a 2000 TL as my first car. We got a really good deal because the check engine light was on. So we drove it 130 miles home, and here is the problem...
(We bought the car with 205,000 miles on it. The previous owner bought it August of '08 from a dealer, with all maintenance up to date.)
The Check Engine light is blinking, along with TCS and Maintenance Required lights on. I know that it's time to change the timing belt and water pump, so we will get that done soon. It idles at around 400, and the engine is shaky in low RPMs. Once you get up into higher RPMs (around 3000), it isn't as bad.
But the reader is giving us these errors:
P0301: Cylinder 1 misfire
P0302: Cylinder 2 misfire
P0303: Cylinder 3 misfire
P0304: Cylinder 4 misfire
P0305: Cylinder 5 misfire
P0306: Cylinder 6 misfire
P0300: Random/Multiple Cylinder misfire
P1740: Definition unkown.
the previous owner said that he took it to someone to fix who mentioned some carbon in the engine or something?
I have read on here about replacing the coils, so would the timing belt, water pump, and coils be able to make it run better?
Thanks.
(We bought the car with 205,000 miles on it. The previous owner bought it August of '08 from a dealer, with all maintenance up to date.)
The Check Engine light is blinking, along with TCS and Maintenance Required lights on. I know that it's time to change the timing belt and water pump, so we will get that done soon. It idles at around 400, and the engine is shaky in low RPMs. Once you get up into higher RPMs (around 3000), it isn't as bad.
But the reader is giving us these errors:
P0301: Cylinder 1 misfire
P0302: Cylinder 2 misfire
P0303: Cylinder 3 misfire
P0304: Cylinder 4 misfire
P0305: Cylinder 5 misfire
P0306: Cylinder 6 misfire
P0300: Random/Multiple Cylinder misfire
P1740: Definition unkown.
the previous owner said that he took it to someone to fix who mentioned some carbon in the engine or something?
I have read on here about replacing the coils, so would the timing belt, water pump, and coils be able to make it run better?
Thanks.
I have a Acura RL 3.5 1999 and when driving it randomly shuts off and the check engine light starts flashing. Took it to advance and got the codes for it and it said cylinders 1-6 misfire so I got 6 bosh spark plugs to put in there what should I do????
Thanks in advance I really appreciate it!! If the codes come up even after replacing what should I do??
12-03-2018, 01:53 AM
#62
Cruisin'
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Multiple Misfires - Yes on spark check/replace, coil tests, clean EGR system, but also factor in a bad alternator (really, bad diodes in the alternator). A bad alternator may not show up as "bad" with the basic auto-store tests but can wreak havoc on elecs when in the system.
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