Missing

Tiny
COLLINSANTONIO
  • MEMBER
  • 1993 LEXUS LS 400
  • V8
  • 2WD
  • AUTOMATIC
  • 219,891 MILES
When I accelerate my car picks up speed slowly.
Sunday, February 6th, 2011 AT 4:22 PM

14 Replies

Tiny
BILLYMAC
  • MECHANIC
  • 2,204 POSTS
Possibly a new fuel filter if only taking off slowly but if actually missing then tune up. First I would have it scanned for codes if no codes then tune up and fuel filter
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Sunday, February 6th, 2011 AT 4:31 PM
Tiny
COLLINSANTONIO
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  • 16 POSTS
Already changed fuel filter
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Sunday, February 6th, 2011 AT 4:33 PM
Tiny
BILLYMAC
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Is the engine misfireing running rough?
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Sunday, February 6th, 2011 AT 4:35 PM
Tiny
COLLINSANTONIO
  • MEMBER
  • 16 POSTS
New fuel pump too it was driving fine until one day I cut it off then went back out to go and it started missing.
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Sunday, February 6th, 2011 AT 4:36 PM
Tiny
COLLINSANTONIO
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  • 16 POSTS
Yes sir
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Sunday, February 6th, 2011 AT 4:37 PM
Tiny
BILLYMAC
  • MECHANIC
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Do you have any codes check eng light? Normally this is either a fuel prob or a cat convertor there will be codes stored for the cat prob.
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Sunday, February 6th, 2011 AT 4:38 PM
Tiny
COLLINSANTONIO
  • MEMBER
  • 16 POSTS
Yes sir check engine light is on and off at times. It has a small oil leak coming from up top running down on the oil filter.
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Sunday, February 6th, 2011 AT 4:52 PM
Tiny
BILLYMAC
  • MECHANIC
  • 2,204 POSTS
You can have it scanned for free at your local advance auto orielys or auto zone near you. This will more then likely tell you where the prob is but sounds like a restricted convertor to me good luck
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Sunday, February 6th, 2011 AT 4:55 PM
Tiny
COLLINSANTONIO
  • MEMBER
  • 16 POSTS
Could it be just one cat since it have three of them or anyway to bypass?
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Sunday, February 6th, 2011 AT 4:58 PM
Tiny
BILLYMAC
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Yes it could be only one the scan will tell you which one is causing the prob.
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Sunday, February 6th, 2011 AT 5:03 PM
Tiny
COLLINSANTONIO
  • MEMBER
  • 16 POSTS
Could it be just one cat conv?
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Sunday, February 6th, 2011 AT 5:30 PM
Tiny
COLLINSANTONIO
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  • 16 POSTS
Estimated cost on that
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Sunday, February 6th, 2011 AT 5:34 PM
Tiny
COLLINSANTONIO
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  • 16 POSTS
My car is a 93 so I need a diagnostic from under the hood
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Sunday, February 6th, 2011 AT 5:36 PM
Tiny
BILLYMAC
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They have adaptors for pre obd vehicles like yours. But if you want to confirm quicker just loosen exhaust at manafold and test drive. If this is not an option go to exhaust shop they can do backpressure test on your convertors and idenify the failing one.
Cost prob under 25.00
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Sunday, February 6th, 2011 AT 8:12 PM

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