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idles fine but wont go. fuel trouble? backfires...

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  #1  
Old 06-26-2008, 02:23 PM
aightball87's Avatar
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Default idles fine but wont go. fuel trouble? backfires...

i have a 94T/A and one day i was at a light and when i hit the gas it just bogged out. it idles fine but anytime i touch the clutch it backfires and blows out black smoke(fuel). By manipulating the clutch i got it to the gas station. i thought it might be just real short on fuel. i filled up half a tank and the problem didnt change. i then checked the fuses and the air pump fuse was blown. i replaced it and still no change. the next week i drove it from the gas station to work at about 1 mile an hour using the clutch. i then bought my own scanner since no stores sem to have one for my car. when i scanned it it said three codes: 1. MAF low voltage, 2. left bank O2 sensor (lean condition indicated), 3. something about the egr but i dont remember. these should all just make it run rough but not immobilize it. i went ahead and replaced the mass air becase it looked pretty rough anyways. no change. ive also put in a new fuel pump and filter with no change. now im just lost and in desperate need of help. ive been without her for a month now.

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  #2  
Old 06-26-2008, 11:35 PM
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Default RE: idles fine but wont go. fuel trouble? backfires...

Waht codes are you getting now, after all the changes you made?
 
  #3  
Old 06-27-2008, 07:12 AM
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Default RE: idles fine but wont go. fuel trouble? backfires...

none at all
 
  #4  
Old 06-28-2008, 10:43 AM
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Default RE: idles fine but wont go. fuel trouble? backfires...

I had the same thing go wrong with mine does your car have the eletric smog pump? I had alot of problems with my car ant it came down to getting a new computer that took like a month to get. so what i did is unpluged the smog pump and took out my cat. also check your EGR.
 
  #5  
Old 06-29-2008, 11:27 AM
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Default RE: idles fine but wont go. fuel trouble? backfires...

i dont have any of those
 
  #6  
Old 06-29-2008, 11:34 AM
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Default RE: idles fine but wont go. fuel trouble? backfires...

toknock out fuel problems use a psi tester on the fuel rail and see it it is steady.
 
  #7  
Old 06-29-2008, 11:40 AM
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Default RE: idles fine but wont go. fuel trouble? backfires...

well my car had similar problems i had one of the screws that mounts the metal piece of the rotor break and it would idle fine but when i put it under load it would misfire, leave smoke, and my rpm would jump from the rotor arking, but it pulled a 16 code if i remeber right but i know for sure it said low distribution voltage, so like they said check your codes and go from there. no point just switching our parts, its way to spendy
 
  #8  
Old 06-29-2008, 04:33 PM
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Default RE: idles fine but wont go. fuel trouble? backfires...

well i did run the codes first. its in the first post. i had three. fixed them all. the rotor sounds very possible though, and ive definately discussed it with a few people. i just dont want to **** with that damn opti again.
 
  #9  
Old 07-03-2008, 02:19 PM
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Default RE: idles fine but wont go. fuel trouble? backfires...

could the plugs be the problem? the lean o2 burned out the plugs
 
  #10  
Old 07-04-2008, 05:40 PM
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Default RE: idles fine but wont go. fuel trouble? backfires...

Check your EGR and make sure it doesn't have a lot of carbon buildup in it causing it to leak.
 


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