This is topic Engine question in forum Tech Talk at Northern California Ford Owners  .


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Posted by j0eyabs (Member # 1026) on :
 
When i step on the gas hard and i get to around 3500 rpm's or so my car will blow black smoke sometimes. what does this mean?
 
Posted by 99gt-UJSTLST (Member # 584) on :
 
quote:
Originally posted by j0eyabs:
When i step on the gas hard and i get to around 3500 rpm's or so my car will blow black smoke sometimes. what does this mean?
it just means it ran FAT at the moment
it added to much fuel every car does that from time to time
 
Posted by 99gt-UJSTLST (Member # 584) on :
 
quote:
Originally posted by j0eyabs:
When i step on the gas hard and i get to around 3500 rpm's or so my car will blow black smoke sometimes. what does this mean?
it just means it ran FAT at the moment
it added to much fuel every car does that from time to time
 
Posted by j0eyabs (Member # 1026) on :
 
is there any way to fix that, is that bad?
 
Posted by shade-tree (Member # 298) on :
 
check for engine codes, possible bad O2 sensors (they default to rich), many a sensor could be to blame.

check all that out and it's still not right, if your motor is not stock, consider backing off the fuel pressure a bit.
 
Posted by sic91sleeper (Member # 779) on :
 
quote:
Originally posted by j0eyabs:
When i step on the gas hard and i get to around 3500 rpm's or so my car will blow black smoke sometimes. what does this mean?
I think that means that your on it WOT!
[Wink] [Big Grin]
 
Posted by 2goneNOWslow (Member # 975) on :
 
one of your o2 sensors could be disconected, which will make you run open loop(full rich) try checking that.
 
Posted by j0eyabs (Member # 1026) on :
 
thanks guys, and my motor is all stock
 




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