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Author
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Topic: puff of white smoke on startup
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iSTUNT707
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Member # 11430
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posted
 
 
happening for a few days now....recent changes I made
cobra ecu,cobra maf cobra upper lower intake
after it puffs smoke it smells really rich like sweet unburnt gasoline,im guessing since I didn't use the 5 speed o2 sensor harness that my ecu might have took a dump car has sporatic idle will only idle strong once ina while since the ecu swap
has afr heads also 165's
you guys have any similar issues oh also 24lb injectors and a 255 ghp pump
should I just slap my auto ecu back in with the after market maf? what should I check I know it cant be a head gasket runs at 165 degrees I have a 160 thermo in it
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"toooouchdown RAIDERS!".....greg papa
Posts: 170 | From: fairfield/vallejo/cordelia | Registered: Nov 2011
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Blow_U_In_Reverse
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Member # 12298
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posted
which ecu did you put in? using a manual trans ecu with an automatic trans o2 harness will fry the computer..
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"Real Men Get BLOWN"
-1993 Cobra "COBRUUH"
-1984 T-Top Notchback
#KurganTuned
Posts: 2688 | From: FiJi-925-650 | Registered: Aug 2012
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Greasy
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Member # 5258
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posted
I ran a A9L with an auto 02 harness and never had an issue. White smoke is generally associated with coolant and not fuel.
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'93 Cobra-Coyote Powered
'03 DSG Cobra
'13 Dodge Cummins
'14 Rubicon X
Posts: 3272 | From: North Dallas | Registered: Jan 2005
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Jaejae5.0
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Member # 7958
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posted
sounds like maybe youre getting water into the cylinders..maybe lower intake isnt sealed properly
Posts: 4890 | From: the combustion chamber | Registered: Oct 2007
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iSTUNT707
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Member # 11430
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posted
cobra ecu
also checks the oil no problem there
looked in the radiator looks like mud is in the water
was told if the ecu frys that it could cuase a rich condition...that would tell the ecu to dump fuel on start up
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"toooouchdown RAIDERS!".....greg papa
Posts: 170 | From: fairfield/vallejo/cordelia | Registered: Nov 2011
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Greasy
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Member # 5258
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posted
Constantly running in open loop would too. Any codes?
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'93 Cobra-Coyote Powered
'03 DSG Cobra
'13 Dodge Cummins
'14 Rubicon X
Posts: 3272 | From: North Dallas | Registered: Jan 2005
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iSTUNT707
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Member # 11430
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posted
quote:
Originally posted by Greasy:
Constantly running in open loop would too. Any codes?
no access to a reader but before the swap I didn't have this issue im gunna swap the ecu and mafs back and see if it stops ill let u guys know
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"toooouchdown RAIDERS!".....greg papa
Posts: 170 | From: fairfield/vallejo/cordelia | Registered: Nov 2011
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Jaejae5.0
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Member # 7958
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posted
quote:
Originally posted by iSTUNT707:
cobra ecu
also checks the oil no problem there
looked in the radiator looks like mud is in the water
was told if the ecu frys that it could cuase a rich condition...that would tell the ecu to dump fuel on start up
just go back to a stock ecu maf and injectors
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1987 notchback h/c/i 302 & 70mm turbo SOLD
2000 camaro ss cam only
Posts: 4890 | From: the combustion chamber | Registered: Oct 2007
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iSTUNT707
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Member # 11430
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posted
quote:
Originally posted by Jaejae5.0:
quote:
Originally posted by iSTUNT707:
cobra ecu
also checks the oil no problem there
looked in the radiator looks like mud is in the water
was told if the ecu frys that it could cuase a rich condition...that would tell the ecu to dump fuel on start up
just go back to a stock ecu maf and injectors
switched back to stock ecu runs great!
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"toooouchdown RAIDERS!".....greg papa
Posts: 170 | From: fairfield/vallejo/cordelia | Registered: Nov 2011
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