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fuel pressure and air/fuel ratio Please HELP...:(

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Old 11-18-2005, 11:03 AM
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Default Re: fuel pressure and air/fuel ratio Please HELP...:(

yea, im going towards that way. I just have find another one to try it.
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Old 11-19-2005, 11:45 PM
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Default Re: fuel pressure and air/fuel ratio Please HELP...:(

Update........

I chaged my fpr with good oem fpr and its doing the same thing. So next thing that im gona check is the fuel pump. wish me luck.
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Old 11-21-2005, 09:55 PM
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Default Re: fuel pressure and air/fuel ratio Please HELP...:(

You may have an injector problem. I had all kinds of wierd problems with my afr's. My car would go lean whenever it felt like it. Even when I would raise the fuel pressure. It would go lean at idle and sometimes when just cruising. I was running venom 660 cc injectors at the time. My problems made no sense. And sometimes my afr would go very rich at times without adjusting anything. I switched to dsm 450's and all my a/f ratio problems went away. Good luck.
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Old 11-21-2005, 10:23 PM
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Default Re: fuel pressure and air/fuel ratio Please HELP...:(

Ya the only problem is he's pushing 550whp and 10sec timeslips. 450cc DSMs won't cut it!!!
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Old 11-21-2005, 11:25 PM
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Default Re: fuel pressure and air/fuel ratio Please HELP...:(

Originally Posted by bumblezc
Ya the only problem is he's pushing 550whp and 10sec timeslips. 450cc DSMs won't cut it!!!
I didn't say anything about him using dsm 450's. I guess you completely missed the point.
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Old 11-22-2005, 12:08 AM
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Default Re: fuel pressure and air/fuel ratio Please HELP...:(

im using 1000cc precision injectors.

btw, I checked the fuel pump and it put out plenty of fuel. I took it out of the tank and test it. No problem there, good pressure and volume.

next thing to check is the injectors. im gona see if I can borow some 1000cc rc injectors from a buddy of mine, and see if that fixes the problem.

wish me luck. im not letting this problem kick my ***, im gona find the problem. there's nothing elese im gona do to the car, untill I fix this problem.

btw, thank you guys for helping.
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Old 11-23-2005, 06:59 AM
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Default Re: fuel pressure and air/fuel ratio Please HELP...:(

Originally Posted by 98ctr
im using 1000cc precision injectors.

btw, I checked the fuel pump and it put out plenty of fuel. I took it out of the tank and test it. No problem there, good pressure and volume.

next thing to check is the injectors. im gona see if I can borow some 1000cc rc injectors from a buddy of mine, and see if that fixes the problem.

wish me luck. im not letting this problem kick my ***, im gona find the problem. there's nothing elese im gona do to the car, untill I fix this problem.

btw, thank you guys for helping.

---- THAT STEFAN rc1000's are shitt (they lock open/closed all the time)y, my dad said you could borrow his 1000's if you want. hit me up.


-Josh
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Old 11-23-2005, 08:13 PM
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Default Re: fuel pressure and air/fuel ratio Please HELP...:(

Well I jsut put in a set of 1000 cc Rc injectors and same thing happens I don't know what else to do.
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Old 11-23-2005, 09:44 PM
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Default Re: fuel pressure and air/fuel ratio Please HELP...:(

How much fuel pressure are you running at idle?
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Old 11-23-2005, 11:53 PM
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Default Re: fuel pressure and air/fuel ratio Please HELP...:(

^^ im only running about 35psi fuel pressure at idle.
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