Num. 1 cylinder misfire

Tiny
MONEYSAM
  • MEMBER
  • 1999 HONDA CIVIC
  • 180,000 MILES
A friend of mine had that pop up on a printout frum autozone what do u recommend?
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Monday, August 27th, 2012 AT 7:54 PM

17 Replies

Tiny
HMAC300
  • EXPERT
Check fuel pressure first then check ignition components. Also check for a vacuum leak.
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Monday, August 27th, 2012 AT 7:56 PM
Tiny
MONEYSAM
  • MEMBER
How do I check the fuel pressure and what should the reading b?
She says when she stops at a light it vibrates more than usual. How woul I check
The ignition components
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Monday, August 27th, 2012 AT 8:09 PM
Tiny
HMAC300
  • EXPERT
Try this first, clean the throttle plateon both sides with choke or fuelinjector spray cleaner. They get dirty on both sides and get all the gun k out. They get oily. Then have apro check it out as you need a gauge to check the fuel pressure and I dont' know your expertise but it doesn' t sound as if you know your way around a car to much. The throttle plate can be foundon tune up on this site and it will show you how to check iginition stuff. But i'd reccomend apro looking at thisbecause if it needs a fuel pump i'm sure he would do that. Fp pressure should be 47-52 psi. If lower you may need a new pump.
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Monday, August 27th, 2012 AT 8:41 PM
Tiny
MONEYSAM
  • MEMBER
I know all the ignition components and I know about cleanin the throttle body plate I jus dnt have a fuel pressure tester im thinkin I would have to hook it up to the shrader valve on the fuel rail
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Monday, August 27th, 2012 AT 8:49 PM
Tiny
HMAC300
  • EXPERT
Ok then check with an auto parts store they may have one for a rental alot of them do that andthat would be wher eyou hook it up on the schrader valve.
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Monday, August 27th, 2012 AT 8:51 PM
Tiny
MONEYSAM
  • MEMBER
Ok
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Monday, August 27th, 2012 AT 8:53 PM
Tiny
KHLOW2008
  • EXPERT
If only one cylinder is misfiring, the spark plugs and wires are the most common cause.
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Monday, August 27th, 2012 AT 9:50 PM
Tiny
KHLOW2008
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Any update on this?
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Friday, August 31st, 2012 AT 12:19 PM
Tiny
MONEYSAM
  • MEMBER
The num 1 fuel injector wasnt contributing
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Friday, August 31st, 2012 AT 12:46 PM
Tiny
MONEYSAM
  • MEMBER
I disconnected each injector to c if each one was operating and number 1 didnt have any change connected or disconnected
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Friday, August 31st, 2012 AT 1:03 PM
Tiny
KHLOW2008
  • EXPERT
It might not be the fuel injector. It means the number one cylinder is not working and it could be the spark plugs, wires or engine compression.

Have you remoived the spark plugs to check?
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Friday, August 31st, 2012 AT 1:26 PM
Tiny
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No not yet
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Friday, August 31st, 2012 AT 2:42 PM
Tiny
MONEYSAM
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She has spark plug wires too I forgot to say that im gonna check the spark plug and wire
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Friday, August 31st, 2012 AT 3:01 PM
Tiny
KHLOW2008
  • EXPERT
That should have been the first thing to check. We should always start with the basics instead of thinking too far ahead.
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Friday, August 31st, 2012 AT 6:36 PM
Tiny
MONEYSAM
  • MEMBER
Rite on
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Friday, August 31st, 2012 AT 6:56 PM
Tiny
MONEYSAM
  • MEMBER
Ok this woman that owns this car jus called n said the whole stereo console area was takin out of her car the ac control also, now her turn signal doesnt work whats the best go
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Friday, September 21st, 2012 AT 12:17 AM
Tiny
KHLOW2008
  • EXPERT
Check for wire damages.
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Friday, September 21st, 2012 AT 6:26 AM

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