vapor lock??? HELP
06-25-2006, 09:50 AM
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vapor lock??? HELP
I just popped my 502 mag mpi in my 93 25 outlaw, so i replaced it with a brand new not rebuilt, new 502 gen6 roller. i upgraded to hardin headers, msd box, rc engenering flowed injectors, fuel pressure reg, and remaped the comp.
now when i idle for to long the fuel pressur goes from 40 psi to 10 psi and will barely run. I have a pressure release valve on the gauge. when i push, it spits air some fuel air air fuel air, you get the point the pressure drops and its empty. two seconds later push the button again air air fuel air????????????????????
please help
now when i idle for to long the fuel pressur goes from 40 psi to 10 psi and will barely run. I have a pressure release valve on the gauge. when i push, it spits air some fuel air air fuel air, you get the point the pressure drops and its empty. two seconds later push the button again air air fuel air????????????????????
please help
06-25-2006, 10:55 AM
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Re: vapor lock??? HELP
No, it is still stock, i have found out that they have had problems with the VST. When i puth the new injectors in i took off the supply and return fuel lines from the fuel rail. maybe i got the reversed??? my diagrams dont tell me where the upper and lower goes to?
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