SES P0300 code
10-03-2005, 02:20 PM
#41
How low are you running the static preasure now ? I had my preasure set at 52psi with the vacuum line hooked up , but have gone back and reset to 52psi with the vac hose unhooked . Ive yet to clear the code since and dont know if its doing it any less
10-03-2005, 02:31 PM
#42
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With the staic pressure(vac unhooked) set at 48psi i rarely get the code because I have it scaling the injectors less. As I turn up the static pressure to 52psi, I turn up the maf scaling and it happens much more. I am soon going to the UTEC and a FJO low impedance injector drivers with big 72lb injectors so that I can run a normal static pressure such as 42psi and have a nice respectable part throttle and idle.
Originally Posted by booger
How low are you running the static preasure now ? I had my preasure set at 52psi with the vacuum line hooked up , but have gone back and reset to 52psi with the vac hose unhooked . Ive yet to clear the code since and dont know if its doing it any less
10-03-2005, 03:00 PM
#45
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That is my humble opinion.
Originally Posted by booger
I have TS flash for my 550 injectors . Do you think lowering the static preasure will help get the code less often ?
10-11-2005, 02:09 PM
#46
Originally Posted by booger
I think most of the F/I are getting it . It has to be one of the three things I changed all at once when we did the rebuild . CAS wire , bigger RC injectors , and the return fuel system with in tank pump upgrade
09-02-2006, 08:36 PM
#51
Originally Posted by booger
Cams ? If not i would check for a vacuum leak
10-28-2009, 06:08 AM
#52
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10-31-2009, 07:32 PM
#54
Right after I had my install I would get this everytime I refueled. Now I rarely get it, so few I can't remember when the last one occured. I'm thinking it's related to fuel pressure, it would show up about 10 seconds after starting the engine after filling up the tank. What I started doing was turning the ignition on but not starting until fuel pressure was up and stabilized, maybe 4 or 5 seconds. The problem with clearing a CEL prior to emissions testing is there is test data held in the ECU that must be there to pass and it takes a while for the complete test sequence to occur to validate emission performance.
11-02-2009, 08:28 AM
#55
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Right after I had my install I would get this everytime I refueled. Now I rarely get it, so few I can't remember when the last one occured. I'm thinking it's related to fuel pressure, it would show up about 10 seconds after starting the engine after filling up the tank. What I started doing was turning the ignition on but not starting until fuel pressure was up and stabilized, maybe 4 or 5 seconds. The problem with clearing a CEL prior to emissions testing is there is test data held in the ECU that must be there to pass and it takes a while for the complete test sequence to occur to validate emission performance.
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