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HELP idle problems and what are my injectors???

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Old 09-06-2010, 02:10 AM
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Ericp831
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Default HELP idle problems and what are my injectors???

Hey im new to this thing and i was wondering if someone can help me out i just bought a 99 cobra and it has recently been rebuilt and has ported heads and 98 cams and mach 1 hood and shaker setup and flowmaster exhaust, the egr has been blocked off and the big fuel line witch i think is for evap to tank has nothing hooked to it? and the sensor on the fuel rail has no vaccum line hooked to it. i dont know if any of this is goin to hurt anything but my car is idiling up and down from 1800 to 800 after it warms up and i have a too rich code on each bank and no egr signal code and another evap code. Will this hurt it and why could it be idling like this it says on m scanner that the tps sensor is at 19.8 percent at idle and 97.3 at wot? HELP ME PLEASE

Also i forgot to mention that my injectors are dark blue and have these numbers on them 2r3v-b5a and s0n12273 093 and b289s35827/01 and 091 and my mass air has these numbers 1l3f-12b579-ab and afh90-02 and 2g11 i dont think that these are stock and thats why its to rich? Someone please help me ive typed in the numbers and some come to be close to 03-04 cobra but the other numbers dont match up and the maf is supposibly a 90mm but does it match these injectors? PLEAASE HELP
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Old 09-06-2010, 02:22 AM
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oxfordgt
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Like I said in the other thread no vacuum source on your frps is why you are rich and bad idle. Your maf is stock cobra and injectors are stock 39lbs.
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Old 09-06-2010, 02:25 AM
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ok ill try to fix it tommorrow so are you sure about the injectors? i should be good with them at 10 psi shouldnt i?
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Old 09-06-2010, 02:33 AM
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oxfordgt
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no 39lbs injectors will only be good to about 480rwhp. You will make more then that on 10lbs.
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Old 09-06-2010, 02:37 AM
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do you know what the 99 engines can take as far as hp and max boost? Its been rebuilt recently so its pretty fresh idk whats been done to the bottom end so im guessing stock.
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Old 09-06-2010, 02:45 AM
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If it's all stock then 460rwhp max. Which means you will either have to detune 10lbs on that engine or run lower boost.
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Old 09-06-2010, 11:14 AM
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i run the numbers on my injectors and the first main number 2r3v-b5a matched but i couldnt find the other numbers that are on my injectors. And all the maf numbers match a 90mm maf but the last nunmber 2g11. I dont know if these matter but before i put get it goin i would rather know for sure if they are truely the 39lb and if the maf is matched?
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Old 09-06-2010, 11:58 AM
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There blue there 39lbs
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Old 09-06-2010, 12:40 PM
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thanks man what about the maf i mean it runs great with it and about all the numbers match a cobras so it must be right then, lol
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Old 09-06-2010, 06:00 PM
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i hooked up the vaccum line to the fuel pressure sensor and checked over all my vaccum fittings for leaks and i hooked a vaccum gauge up and i have 14-15 psi. is that right? and could having 98 cobra cams ported heads and 03-04 cobra injectors and maf and the egr has been removed so the two plugs that went to the sensors are not hooked up cause it to idle up and don and throw rich codes? I havent tuned it either. Also the tps pigtail looks like its been modified, it has been cut and spliced with male/female connectors. and it says i have 18.8 % throttle at idle with the blades fully closed.
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