 Upgrading injectors, What do I need? |
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 Aug 13, 2009 - 9:29 AM
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Enthusiast  Joined Jul 30, '08 From NYC Currently Offline Reputation: 0 (0%)  |
I have a set of 315cc injectors from a 7MGE Supra.
When I tried them in the 5sfe the car dies at about 4500-4700 rpms in every gear, with the pedal to the rug. My question is, should this be happening going from the stock 220cc injectors? Will the computer automatically adjust the fuel output over time? Or do I need something else to tell it how to regulate the air/fuel ratio? |
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Aug 13, 2009 - 12:07 PM
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Enthusiast Joined Apr 27, '09 From West Coast Canada Currently Offline Reputation: 0 (0%) |
QUOTE (joeladam02 @ Aug 13, 2009 - 9:29 AM)  I have a set of 315cc injectors from a 7MGE Supra. When I tried them in the 5sfe the car dies at about 4500-4700 rpms in every gear, with the pedal to the rug. My question is, should this be happening going from the stock 220cc injectors? Will the computer automatically adjust the fuel output over time? Or do I need something else to tell it how to regulate the air/fuel ratio? get an A/F guage, and possibley SAFC, then you can see whats going on, shouldn't die that early. try resetting ecu first This post has been edited by Mstoochn: Aug 13, 2009 - 12:23 PM |
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Aug 13, 2009 - 1:37 PM
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 Enthusiast Joined Feb 11, '08 From Auckland, New Zealand Currently Offline Reputation: 0 (0%) |
Why are you changing your injectors?
-------------------- Mike W
1996 Toyota Celica ST205 GT-FOUR GT2860RS turbine, TiAL mvr44, JE 86.5φ piston, Clutchmasters FX400, APEX P-FC 269awhp / 273ft-lbs |
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Aug 13, 2009 - 3:14 PM
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 Enthusiast Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
those are too large. your causing your engine to get overly rich, and die. if anything get 440CC injectors and a 2bar MAP sensor. Or just leave your car stock
-------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
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Aug 13, 2009 - 3:18 PM
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 Enthusiast Joined Dec 19, '07 From tx Currently Offline Reputation: 22 (100%) |
Wait why are you doing this?!? If you think you can get performance by just adding fuel I've got a few things you should read.
if it's for a Turbo job then you will ultimately run lean with those injectors but firstly you need a wideband and some way to tune out the new injectors. I can't believe it's idling ATM - you should be putting way too much fuel to it now. There must be more to this --------------------  ENGINE: '93 RC 3S-GTE/WRC CT-20b [18-20PSI] PERF: TRD/HKS/ARP/NGK/MSD/ACT/Blitz/STRI/APEX'i/TwosRus/GReddy/Magnaflo/KOYO SUSP: Tein/Bilstein/SusTech/ INT: SS-III SEATS/Toyota Hyper Sports EXT: WRC/TRD/404 QUOTE (lagos @ Aug 25, 2010 - 10:13 AM) Its a safety feature so that people like you don't end up killing themselves or everyone around them. Slow down Paul Walker. 6GC Chat - Go there: [url="http://www.griffgirl.com/forum/chat/index.php[/url] |
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Aug 15, 2009 - 12:36 AM
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Enthusiast Joined Jul 30, '08 From NYC Currently Offline Reputation: 0 (0%) |
Nope, runs up to 4600-4800 RPM's until the ECU starts trying to lean it out.
But the injectors were really just used for test purposes anyways. Had an engine misfire, and was going to use those injectors to rule out a problem with the original injectors, but it just compounded the issue really. I think they're out of an older Supra. 315cc light green ones. The only reason I even have them is because some guy named StephenAudet on here sold them to me as 5sfe injectors, when they were really like 4AGZE injectors or something... |
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