Not getting fire to 1 cylinder the plugs and.

Tiny
JPEREZ132
  • MEMBER
  • 1996 TOYOTA PASEO
  • 260,000 MILES
Not getting fire to 1 cylinder the plugs and wires are brand new the coil packs are good and the cylinder has good compression just not gettn fire?
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Wednesday, November 14th, 2012 AT 2:22 PM

12 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
If you are getting sparks to cylinder # 4 and none to # 1, the coil pack is faulty.
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Wednesday, November 14th, 2012 AT 3:02 PM
Tiny
JPEREZ132
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  • 7 POSTS
Changed them still no fire
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Wednesday, November 14th, 2012 AT 3:12 PM
Tiny
KHLOW2008
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Are you sure you are not getting soarks to the # 1 cylinder? How did you test for sparks? Is # 4 cylinder getting sparks?
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Wednesday, November 14th, 2012 AT 3:17 PM
Tiny
JPEREZ132
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  • 7 POSTS
Pulled plug wire out and chnge of motor pulled out of the cylinder not getn fire no chnge and I swaped the coils n it made it no different there good just that 1 cylinder not getting fire my engine light is on also
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Wednesday, November 14th, 2012 AT 3:51 PM
Tiny
KHLOW2008
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Retrieve the trouble codes and let me know what it is.

Are you getting sparks to cylinder # 4? They both share the same coil right?
Did you pull the ignition coil out, attach a spark plug to it and crank and check for sparks? No ignition sparks and cylinder not firing are 2 different things.
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Wednesday, November 14th, 2012 AT 3:58 PM
Tiny
JPEREZ132
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  • 7 POSTS
Its only running on 3 cylinders I have spark at coils but not at. The cylinder
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Wednesday, November 14th, 2012 AT 4:04 PM
Tiny
JPEREZ132
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  • 7 POSTS
Any idea? I cant figure it out
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Wednesday, November 14th, 2012 AT 4:33 PM
Tiny
KHLOW2008
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I am trying to confirm if it is missing sparks at the plugs that is causing the problem or the cyinder is misfiring due to other reasons and I am not sure if you are doing the testings correctly.

Let us go over this again one more time.
Disconnect both ignition coil packs.
Remove the # 1 coil pack.
Attach a spark plug to it.
Reconnect the wireharness.
Ground the spark plug by holding it to engine.
Get someone to crank the engine.
Do you have sparks when it is cranking?
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Wednesday, November 14th, 2012 AT 8:07 PM
Tiny
JPEREZ132
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  • 7 POSTS
Yes have when I do that
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Wednesday, November 14th, 2012 AT 8:23 PM
Tiny
KHLOW2008
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Ok, problem is not due to no spark.

Check the fuel injectors. Test the resistance and manually test if it clicks when battery voltage is applied to one terminal while the other is grounded. Use clicking motion to test.
Use a noid light across the injector terminals to test if it pulses when the engine is being cranked.
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Wednesday, November 14th, 2012 AT 8:29 PM
Tiny
JPEREZ132
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It clicks when I do that
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Wednesday, November 14th, 2012 AT 8:32 PM
Tiny
KHLOW2008
  • MECHANIC
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You would need to test if the circuit to PCM is broken. Do you have battery voltage at one terminal?
If yes, use a jumper wire and connect the one that does not have battery voltage to # 4 fuel injector wire that does not have battery voltage and try starting.
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Wednesday, November 14th, 2012 AT 8:43 PM

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