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| Forum name | Turbo/Nitrous Tech |
| Topic subject | running rich at start up. |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=54173 |
54173, running rich at start up.
Posted by 420aturbo, Aug-17-03 12:42 PM
I am running way rich at start up. I have Vortech FMU 12-1, stock injectors and a Walbro 255 hi-psi pump. I installed new plugs this morning and already fouled them out! What would be causing me to do this?
I can crank it about 5-6x before it finally starts. When started, it stumbled and black smoke spews out of the wastegate and exhaust. You can just smell the richness after it starts.
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54174, RE: running rich at start up.
Posted by siueclipse, Aug-17-03 12:53 PM
whats your base fuel pressure?
J
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54176, RE: running rich at start up.
Posted by HadesOmega, Aug-17-03 02:45 PM
wierd my cars runs lean at startup.
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54254, RE: running rich at start up.
Posted by 420aturbo, Aug-18-03 02:03 PM
well the car is still running VERY rich! I put in plugs yseterday morning and they are completely fouled when I took them out this afternoon at work. What would cause this?
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54270, RE: running rich at start up.
Posted by siueclipse, Aug-18-03 06:09 PM
you havent' said what your base fuel pressure is........
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54281, RE: running rich at start up.
Posted by XtremeRS, Aug-18-03 07:30 PM
Yes, what is your idle fuel pressure? stock injects need around 45-50 psi at idle, no more
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54284, RE: running rich at start up.
Posted by solareclipse98, Aug-18-03 08:02 PM
>Yes, what is your idle fuel pressure? stock injects need
>around 45-50 psi at idle, no more
Could it be possible he has an injector gone bad? This sounds very eeriely familour to my problem i had before i rebuilt my motor and found my rings where fubar and my head gasket was blown.. I think it has something to do with your SFMU you need to ajust your base pressure... also do you have SAFC?? it may have gone wack....
it could be a number of things.
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