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RRFPR running too rich at idle


 
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1nastyR/t
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PostPosted: Sat Nov 05, 2011 10:00 am    Post subject: RRFPR running too rich at idle Reply with quote

Just installed a walbro 255, begi rrfpr, and srt4 stage 1 injectors. My car is seeing 10.0-10.5 AFR at idle and i've tried adjusting the regulator and it doesn't change, when i had the stock injectors in and it adjusted just fine. do you think my new injectors are too big? motor is a 2.0 dohc.
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chipdogg
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PostPosted: Sat Nov 05, 2011 10:43 am    Post subject: Reply with quote

Got a fuel pressure gauge? Make sure the regulator works.

Got a return line? Modded fuel pump.
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metal_gear_jon
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1998 Dodge Neon

PostPosted: Sat Nov 05, 2011 12:37 pm    Post subject: Reply with quote

Upstream o2 sensor hooked up?
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1nastyR/t
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PostPosted: Sat Nov 05, 2011 12:55 pm    Post subject: Reply with quote

no i don't have a fuel pressure gauge
yes all the o2 sensors are in and working.
my new injectors are 577cc vs 224cc stock ones.....
the regulator is working because when i used my stock injectors i could see my afr go up and down when i adjusted the center screw.....
but under boost they could not push enough fuel
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metal_gear_jon
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1998 Dodge Neon

PostPosted: Sat Nov 05, 2011 3:24 pm    Post subject: Reply with quote

Stage one's are kinda big for a stock Dohc. I ran 35'lber's (370cc's) in my old car when it had a rrfpr.
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